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George Washington Tryon Jr. (20 May 1838 – 5 February 1888) was an American
malacologist Malacology is the branch of invertebrate zoology that deals with the study of the Mollusca (mollusks or molluscs), the second-largest phylum of animals in terms of described species after the arthropods. Mollusks include snails and slugs, clams, ...
who worked at the Academy of Natural Sciences in
Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Sinc ...
.


Biography

George Washington Tryon was the son of Edward K. Tryon and Adeline Savidt. In 1853 he attended the Friends Central School in Philadelphia. In 1859, Tryon became a member of the Academy of Natural Sciences of Philadelphia. He was largely responsible for the construction of new buildings for the Academy, especially, in 1866, a section for malacology. In 1869 he became the conservator in this malacological section. In 1865, together with a group of American malacologists, he founded (and financed) the American Journal of Conchology. This ended in 1872. In 1879 he started the ''Manual of Conchology; structural and systematic; with illustrations of the species'', volume 1, series 1. When he died, nine volumes of the first series had been published. From 1887 until 1888, his assistant was Henry Augustus Pilsbry. Thereafter, Pilsbry continued as editor of the ongoing multi-volume ''Manual of Conchology''. The work was continued until 1935 when 45 volumes had been published. Tryon named more than 5,600 new species, and can be considered one of the most prolific malacologists. His important collection (more than 10,000 specimens) made the Academy of Natural Sciences of Philadelphia the center of malacological studies in the 19th century. The freshwater snail genus ''
Tryonia ''Tryonia'' is a genus of freshwater snails in the family Hydrobiidae.Wesselingh F. P., et al. (2006).Molluscs from the Miocene Pebas Formation of Peruvian and Colombian Amazonia.''Scripta Geologica'' 1333 19-290. This genus is sometimes placed ...
'' is named in his honor.


Bibliography

Tryon published more than 1,000 articles and books. * Tryon G. W. (January 1) 1861
''List of American writers on recent conchology. With the titles of their memoirs and dates of publication''
New York, Ballière Brothers, 440 Broadway
(Another copy of this book.)
*Tryon, G.W. 1862 : ''Synopsis of the Recent species of Gastrochaenidae, a family of acephalous Mollusca''. Proc. Acad. Nat. Sc. Philadelphia. Vol. 13:465-94 *Tryon, G.W. 1862 : ''A sketch of the History of Conchology in the United States''. Am. Journ. Sc. Arts. 33 * Tryon G. W. 1863. ''Notes on American fresh water shells, with descriptions of two new species''. proceedings of the Academy of Natural Sciences of Philadelphia, 14(9): 451–452. * Tryon G. W. 1864
''The complete writings of Constantine Smaltz Rafinesque on recent & fossil conchology''
Edited by Wm. G. Binney and George W. Tryon Jr. – Correct spelling should be
Constantine Samuel Rafinesque Constantine Samuel Rafinesque-Schmaltz (; October 22, 1783September 18, 1840) was a French 19th-century polymath born near Constantinople in the Ottoman Empire and self-educated in France. He traveled as a young man in the United States, ultima ...
. The book includes also all of Rafinesque's malacological plates. * Tryon G. W. 1865. ''Observations on the family Strepomatidae''. American Journal of Conchology, 1(2): 97–135. (Strepomatidae is a synonym for Pleurocerinae in family
Pleuroceridae Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell. Reprodu ...
.) * Tryon G. W. 1865
''Synonymy of the species of Strepomatidae (melanians) of the United States; with critical observations on their affinities, and descriptions of land, fresh water and marine Mollusca''
New York, Ballière Brothers, 520 Broadway, 100 pp., 2 plates. –
Another copy of this book
) (Strepomatidae is a synonym for Pleurocerinae in family
Pleuroceridae Pleuroceridae, common name pleurocerids, is a family of small to medium-sized freshwater snails, aquatic gilled gastropod mollusks in the superfamily Cerithioidea.These snails have an operculum and typically a robust high-spired shell. Reprodu ...
.) * Tryon G. W. 1866–1868. ''Monograph of the terrestrial Mollusca of the United States''. American Journal of Conchology. ** 1866
2(3)
218–277, plates 1–4. ** 1866. 2(4): 306–327, plates 5–6. ** 1867. 3(2): 155–181, plates 11–14. ** 1868. 3(4): 298–234, plates 14–17. * Tryon G. W. 1870
''A monograph of the fresh-water univalve mollusca of the United States. Turbidae, Physadae''
Philadelphia. (In continuation of Prof. S. S. Haldeman's work published under the above title.) * Tryon, G.W. 1872 : Catalogue and Synonymy of the Recent species of the family Lucinidae. Proc. Acad. Nat. Sc. Philadelphia. pages 82–96 * Tryon G. W. 1873
''American marine conchology: or, Descriptions of the shells of the Atlantic coast of the United States from Maine to Florida''
Philadelphia, published by the author. * Tryon G. W. 1882
''Structural and systematic conchology: an introduction to the study of the Mollusca. Volume I''
Philadelphia, published by the author. * Tryon G. W. 1882
''Structural and systematic conchology: an introduction to the study of the Mollusca. Volume II''
Philadelphia, published by the author. * Tryon G. W. 1884
''Structural and systematic conchology: an introduction to the study of the Mollusca. Volume III''
Philadelphia, published by the author.


Manual of Conchology

''Manual of Conchology, structural and systematic, with illustrations of the species''. The illustrations in this work were created by Dr. E. J. Nolan. Note: there are old synonyms in names of some volumes. * 1879 �
Volume 1
Cephalopoda. * 1880 �
Volume 2
Muricinae Muricinae is a taxonomic subfamily of predatory sea snails, marine gastropod mollusks within the large family Muricidae, the murex snails and rock snails. The Muricinae represent approximately 780 valid names of fossil (378) and recent (400) ...
, Purpurinae. 289 pp., 70 plates. * 1880–1881 �
Volume 3
Tritoniidae,
Fusidae Colubrariidae are a taxonomic family of medium-sized sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda ...
(= Fasciolariidae),
Buccinidae The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.Bouchet, P.; Gofas, S. (2010). Buccinidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. A ...
. 310 pp., 87 plates. * 1882 �
Volume 4
Nassidae The Nassariidae, Nassa mud snails (USA), or dog whelks (UK), are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda. "Dog whelk" also refers to ''Nucella lapillus''. Shell description Th ...
, Turbinellidae, Volutidae, Mitridae. * 1883 �
Volume 5
Marginellidae, Olividae, Columbellidae. * 1884 �
Volume 6
Conidae, Pleurotomidae. * 1885 �
Volume 7
Terebridae, Cancellariidae, Strombidae, Cypraeidae, Ovulidae,
Cassididae The Cassidae are a taxonomic family of medium-sized, large, and sometimes very large sea snails commonly called helmet snails or bonnet snails. These are marine gastropod mollusks in the superfamily Tonnoidea and the clade Littorinimorpha.Gofas, ...
,
Doliidae The Tonnidae are a family of medium-sized to very large sea snails, known as the tun shells. These are marine gastropod molluscs in the clade Littorinimorpha. The name ''tun'' refers to the snails' shell shape, which resembles wine casks known a ...
. * 1886 �
Volume 8
Naticidae,
Calyptraeidae The Calyptraeidae are a family of small to medium-sized marine prosobranch gastropods. MolluscaBase. Calyptraeidae Lamarck, 1809. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=141 o ...
,
Turritellidae Turritellidae, common name the "tower shells" or "tower snails", is a taxonomic family of small to medium-sized sea snails, marine gastropod molluscs in the clade Sorbeoconcha. These snails are filter feeders. This method of feeding is somewhat ...
, Vermetidae, Caecidae,
Eulimidae Eulimidae is a family of very small parasitic sea snails, marine gastropod mollusks in the superfamily Vanikoroidea. Description These small parasitic snails live on (or in some cases in) the bodies of echinoderms such as sea cucumber ...
,
Turbonillidae Turbonillinae is a subfamily of mostly minute parasitic sea snails, marine gastropod molluscs in the family Pyramidellidae, the pyrams and their allies.MolluscaBase (2018). Turbonillinae Bronn, 1849. Accessed through: World Register of Marine Spe ...
, Pyramidellidae. 461 pp., 79 plates. * 1887 �
Volume 9
Solariidae (by
William B. Marshall William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conques ...
),
Ianthinidae Wentletraps are small, often white, very high-spired, predatory or ectoparasitic sea snails, marine gastropod mollusks in the family Epitoniidae.Gofas, S. (2010). Epitoniidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca ...
,
Trichotropidae The Capulidae, the cap snails or cap shells, are a taxonomic family of limpet-like sea snails, marine gastropod molluscs in the clade Littorinimorpha.Gofas, S. (2012). Capulidae. Accessed through: World Register of Marine Species at http://www.m ...
,
Scalariidae Wentletraps are small, often white, very high- spired, predatory or ecto parasitic sea snails, marine gastropod mollusks in the family Epitoniidae.Gofas, S. (2010). Epitoniidae. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mol ...
, Cerithiidae,
Rissoidae Rissoidae is a large family of very small and minute sea snails with an operculum, marine gastropod mollusks in the superfamily Rissooidea and the order Littorinimorpha. Distribution and habitat This family of snails is found worldwide. They ...
, Littorinidae. 488 pp., 71 plates. Note: Solariidae is not a valid family today. (a partial synonym for Architectonicidae?) Published in parts: ** 7 February 1887 – part 33, pages 1–64. ** 8 June 1887 – part 34, pages 65–128. ** 2 September 1887 – part 35, pages 129–224. ** 10 December 1887 – part 36, 36a, pages 225–488. * 1888–1889 �
Volume 10
Neritidae,
Adeorbidae Tornidae is a family of very small and minute sea snails with an operculum, marine gastropod mollusks in the clade Littorinimorpha. This family used to be known as the Vitrinellidae.Bouchet, P.; Gofas, S. (2014). Tornidae Sacco, 1896 (1884). Acc ...
,
Cyclostrematidae Liotiidae is a family of small sea snails, marine gastropod mollusks in the clade Vetigastropoda (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2013). Liotiidae Gray, 1850. Accessed through: World Register of ...
, Liotiidae, Phasianellidae, Turbinidae, Trochidae,
Stomatiidae The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles a ...
, Haliotidae,
Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas ...
. 322 pp., 69 plates. Published in parts: ** 16 March 1888 – part 37, pages 1–64. ** 1 July 1888 – part 38, pages 65–144. ** 1 October 1888 – part 39, pages 145–208. ** 3 January 1889 – part 40, pages 209–323. * 1889 �
Volume 11
Trochidae, Stomatiidae,
Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas ...
, Haliotidae. 519 pp., 67 plates. Note: Stomatiidae is a synonym for subfamily Stomatellinae in the family Trochidae. * 1890 �
Volume 12
continued by Henry Augustus Pilsbry.
Stomatellidae Stomatellinae is a subfamily of small sea snails with a brilliantly nacreous interior of the shell, marine gastropod mollusks in the family Trochidae, the top snails.Gofas, S. (2012). Stomatellinae. Accessed through: World Register of Marine Spec ...
, Scissurellidae,
Pleurotomariidae Pleurotomariidae, common name the "slit snails", is a family of large marine gastropods in the superfamily Pleurotomarioidea of the subclass Vetigastropoda. This family is a very ancient lineage; there were numerous species in the geological pas ...
, Haliotidae, Scutellinidae,
Addisoniidae Addisoniidae is a family of sea snails, deepwater true limpets, marine gastropod mollusks in the clade Vetigastropoda Vetigastropoda is a major Taxonomy (biology), taxonomic group of sea snails, marine (ocean), marine gastropod mollusc, mollu ...
, Cocculinidae, Fissurellidae. * 1891 �
Volume 13
continued by H. A. Pilsbry. Acmaeidae, Lepetidae, Patellidae, Titiscaniidae. * 1892 �
Volume 14
continued by H. A. Pilsbry. Polyplacophora, (
Chiton Chitons () are marine molluscs of varying size in the class Polyplacophora (), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are also sometimes known as gumboots or sea cradles or coat-of-mail sh ...
s.)
Lepidopleuridae Leptochitonidae is a of chiton, polyplacophoran mollusc. While the subfamily Leptochitoninae has both extant taxon, extant and extinct species, all members of Helminthochitoninae are extinct. References

Leptochitonidae, Chitons {{ ...
, Ischnochitonidae, Chitonidae, Mopaliidae. * 1893 �
Volume 15
continued by H. A. Pilsbry. Polyplacophora, (
Chiton Chitons () are marine molluscs of varying size in the class Polyplacophora (), formerly known as Amphineura. About 940 extant and 430 fossil species are recognized. They are also sometimes known as gumboots or sea cradles or coat-of-mail sh ...
s.)
Acanthochitidae Acanthochitonidae is a family of chitons, marine molluscs in the class Polyplacophora. Description These small to large chitons are characterised by a broad girdle with erect tufts of up to ten large bristles. The coarsely granular valves of the ...
,
Cryptoplacidae ''Cryptoplax'' is a genus of chiton, polyplacophoran molluscs.Kaas, P., van Belle R. A''Monograph of living chitons'' E. J. Brill Publishers 1985. The genus consists of the following living species:Bouchet, P.; Schwabe, E. (2012). Cryptoplax Blai ...
and appendix.
Tectibranchiata Tectibranchia Cuvier, 1814, also spelled as Tectibranchiata, was previously used as a taxonomic order, or suborder, of gastropods in which the gills are usually situated on one side of the back, and protected by a fold of the mantle. When there is ...
. * 1895–1896 �
Volume 16
continued by H. A. Pilsbry.
Philinidae Philinidae is a family of medium-sized sea slugs, marine opisthobranch gastropod mollusks. These are headshield slugs, in the order Cephalaspidea.Bouchet, P. (2012). Philinidae. Accessed through: World Register of Marine Species at http://www ...
,
Gastropteridae Gastropteridae, the bat-winged slugs, is a family of sea slugs, gastropod molluscs in the superfamily Philinoidea of the clade Cephalaspidea, the headshield slugs and bubble snails. The greatest diversity of these colourful small slugs is in the ...
, Aglajidae,
Aplysiidae Aplysiidae is the only family in the superfamily Aplysioidea, within the clade Anaspidea. These animals are commonly called sea hares because, unlike most sea slugs, they are often quite large, and when they are underwater, their rounded body s ...
,
Oxynoeidae Oxynoidae is a family of sea snails, bubble snails, marine gastropod mollusks in the superfamily Oxynooidea, an opisthobranch group. This family has no subfamilies. Genera The following three genera or four are included in the family Oxynoidae ...
,
Runcinidae Runcinidae is a family of medium-sized sea slugs, marine opisthobranch gastropod mollusks. They are headshield slugs, in the superfamily Runcinoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). MolluscaBase eds. ( ...
,
Umbraculidae Umbraculidae are a Taxonomy (biology), taxonomic family (biology), family of unusual sea snails or limpets, marine (ocean), marine opisthobranch gastropod molluscs in the clade Umbraculida. Distribution This family has a global distribution in t ...
, Pleurobranchidae. * 1897–1898 �
Volume 17
continued by H. A. Pilsbry. Scaphopoda (by H. A. Pilsbry and Dr.
Benjamin Sharp Benjamin ( he, ''Bīnyāmīn''; "Son of (the) right") blue letter bible: https://www.blueletterbible.org/lexicon/h3225/kjv/wlc/0-1/ H3225 - yāmîn - Strong's Hebrew Lexicon (kjv) was the last of the two sons of Jacob and Rachel (Jacob's thir ...
), Aplacophora. Index to genera and subgenera, volumes II. to XVII.


Manual of Conchology. Second series: Pulmonata

''Manual of Conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata''. Altogether there are 28 volumes: * 1885 �
Volume 1
Testacellidae, Oleacinidae,
Streptaxidae Streptaxidae is a family of carnivorous air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Six Streptaxidae subfamilies are accepted in the 2005 taxonomy of the Gastropoda by Bouchet & Rocroi. Stre ...
,
Helicoidea Helicoidea is a taxonomic superfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Stylommatophora. Taxonomy 2005 taxonomy There are 19 families within the superfamily Helicoidea according to the taxonom ...
,
Vitrinidae Vitrinidae is a family of small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Limacoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005). MolluscaBase eds. (2021). MolluscaBas ...
,
Limacidae Limacidae, also known by their common name the keelback slugs, are a taxonomic family of medium-sized to very large, air-breathing land slugs, terrestrial pulmonate gastropod molluscs in the superfamily Limacoidea. Distribution The distributi ...
,
Arionidae Arionidae, common name the "roundback slugs" or "round back slugs" are a taxonomic family of air-breathing land slugs, terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea. Distribution The distribution of this family of slug ...
. 364 pp., 60 plates. * 1886 �
Volume 2
Zonitidae. * 1887 �
Volume 3
Helicidae – Volume I. * 1888 �
Volume 4
Helicidae – Volume II. Volumes after 1888 has Tryon as an author, they were edited by Henry Augustus Pilsbry: * 1889 �
Volume 5
Helicidae – Volume III. – Continued by Henry Augustus Pilsbry. * 1890 �
Volume 6
Helicidae – Volume IV. Continued by H. A. Pilsbry. * 1891 �
Volume 7
Helicidae – Volume V. Continued by H. A. Pilsbry. * 1892 �
Volume 8
Helicidae – Volume VI. Continued by H. A. Pilsbry. * 1894 �
Volume 9
Helicidae – Volume VII. Continued by H. A. Pilsbry. * 1895 �
Index to the helices
Continued by H. A. Pilsbry. * 1895–1896 �
Volume 10
American Bulimi and Bulimuli. ''
Strophocheilus ''Strophocheilus'' is a genus of gastropods belonging to the family Strophocheilidae Strophocheilidae is a taxonomic family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Acavoidea (according to t ...
'', '' Plekocheilus'', ''
Auris Auris may refer to: * Auris, Isère, a town in France * Auris, a snail genus, catalogued by George Washington Tryon * Toyota Auris, an automobile * Ear (Latin) * '' Auris'', the first ocean-going merchant ship powered by a gas turbine A gas tu ...
'', ''
Bulimulus ''Bulimulus'' is a genus of small to medium-sized tropical or sub-tropical, air-breathing land snails, pulmonate gastropod mollusks in the subfamily Bulimulinae within the family Bulimulidae.Breure A. S. H. & Romero P. (2012). "Support and su ...
''. Continued by H. A. Pilsbry. * 1897–1898 �
Volume 11
American Bulimulidae: ''
Bulimulus ''Bulimulus'' is a genus of small to medium-sized tropical or sub-tropical, air-breathing land snails, pulmonate gastropod mollusks in the subfamily Bulimulinae within the family Bulimulidae.Breure A. S. H. & Romero P. (2012). "Support and su ...
'', ''
Neopetraeus ''Neopetraeus'' is a genus of gastropods belonging to the family Bulimulidae. The species of this genus are found in Central and Southern America. Species: *''Neopetraeus altoperuvianus'' *''Neopetraeus arboriferus'' *''Neopetraeus atahualpa ...
'', ''
Oxychona ''Oxychona'' is a genus of air-breathing land snails, terrestrial animal, terrestrial pulmonate gastropod mollusks in the family Bulimulidae.MolluscaBase eds. (2021). MolluscaBase. Oxychona Mörch, 1852. Accessed through: World Register of Marin ...
'', and South American '' Drymaeus''. Continued by H. A. Pilsbry. * 1899 �
Volume 12
American Bulimulidae: North American and Antillean '' Drymaeus'', ''
Leiostracus ''Leiostracus'' is a genus of small to medium-sized neotropical, air-breathing land snails, pulmonate gastropod mollusks in family Simpulopsidae.MolluscaBase eds. (2020). MolluscaBase. Leiostracus Albers, 1850. Accessed through: World Register of ...
'', Orthalicinae and Amphibuliminae. Continued by H. A. Pilsbry. * 1900 �
Volume 13
Australasian Bulimulidae: ''
Bothriembryon ''Bothriembryon'' is a genus of tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Bothriembryontidae. B. J. Smith (1992) made the last review of the genus summarizing all known data. Distribution The l ...
'', '' Placostylus''. Helicidae: '' Amphidromus''. Continued by H. A. Pilsbry. * 1901–1902 �
Volume 14
Oriental Bulimoid Helicidae.
Odontostominae Odontostomidae is a taxonomic family of medium-sized to large, air-breathing, tropical and sub-tropical land snails, terrestrial pulmonate gastropod molluscs in the superfamily Orthalicoidea.Breure A. S. H. & Romero P. (2012). "Support and sur ...
.
Cerionidae Cerionidae is a family of air-breathing land snails, terrestrial pulmonate gastropod mollusks in the superfamily Urocoptoidea. Pre-2008 taxonomy According to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005), the family Cerionidae is ...
. Continued by H. A. Pilsbry. Note: Odontostomini is now a tribe in the subfamily Bulimulinae. * 1903 �
Volume 15
Urocoptidae. Continued by H. A. Pilsbry. * 1904 �
Volume 16
Urocoptidae, Achatinidae. Continued by H. A. Pilsbry. * 1904–1905 �
Volume 17
African Achatinidae. Continued by H. A. Pilsbry. * 1906 �
Volume 18
Achatinidae: Stenogyrinae and
Coeliaxinae Subulininae is a subfamily of small tropical air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae. Distribution Worldwide.
. Continued by H. A. Pilsbry. * 1907–1908 �
Volume 19
Oleacinidae, Ferussacidae. Continued by H. A. Pilsbry. (Correct spelling is Ferussaciidae these days.) * 1909–1910 �
Volume 20
'' Caecilioides'', '' Clessula'' and
Partulidae Partulidae is a family of air-breathing land snails, terrestrial gastropod mollusks in the superfamily Pupilloidea.MolluscaBase eds. (2021). MolluscaBase. Partulidae Pilsbry, 1900. Accessed through: World Register of Marine Species at: http:/ ...
. Index to vols. XVI. – XX. Continued by H. A. Pilsbry. Other volumes are not attributed to George Washington Tryon: * 1911 �
Volume 21
Achatinellidae ( Amastrinae). Alpheus Hyatt & Henry Augustus Pilsbry. '' Leptachatina'' by C. Montague Cooke. Illustrated by
Helen Winchester Helen may refer to: People * Helen of Troy, in Greek mythology, the most beautiful woman in the world * Helen (actress) (born 1938), Indian actress * Helen (given name), a given name (including a list of people with the name) Places * Helen, ...
.Hyatt A. & Pilsbry H. A. 1911. Manual of conchology, structural and systematic, with illustrations of the species. Second series: Pulmonata. Preface. page IX. Volume 21. (The volume was published after Hyatt's death in 1902.) ( Amastridae is considered to be a sole family these days.) * 1912–1914 �
Volume 22
Achatinellidae by Henry A. Pilsbry assisted by C. Montague Cooke. Genealogy and migrations of the Achatinellidae by Alpheus Hyatt. * 1915–1916 �
Volume 23
Appendix to Amastridae. Tornatellinidae. Index, vols. XXI-XXIII. Henry A. Pilsbry & C. Montague Cooke. * 1916–1918 �
Volume 24
Pupillidae (
Gastrocoptinae Gastrocoptidae is a family of minute, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the superfamily Pupilloidea.Philippe Bouchet, Jean-Pierre Rocroi, Bernhard Hausdorf, Andrzej Kaim, Yasunori Kano, Alexander Nützel, P ...
). Henry A. Pilsbry. * 1918–1920 �
Volume 25
Pupillidae (Gastrocoptinae, Vertigininae). Henry A. Pilsbry & C. Montague Cooke. ( Vertiginidae is considered to be a sole family these days.) * 1920–1921 �
Volume 26
Pupillidae (Vertigininae, Pupillinae). Henry A. Pilsbry. * 1922–1926 �
Volume 27
Pupillidae (Orculinae, Pagodulinae, Acanthinulinae, etc.). Henry A. Pilsbry. * 1927–1935 �
Volume 28
Geographic Distribution of Pupillidae; Strobilopsidae, Valloniidae and Pleurodiscidae. Henry A. Pilsbry.


References


Further reading

* Dance S. P. A (1986). ''A History of Shell Collecting''. 144–146, 176–177. * Ruschenberger W. S. W. (1888). "A biographical notice of George W. Tryon, Jr., conservator of the Conchological Section of the Academy of Natural Sciences of Philadelphia". '' Proceedings of the Academy of Natural Sciences of Philadelphia'

1–22.


External links

* {{DEFAULTSORT:Tryon, George W. 1838 births 1888 deaths American zoologists American malacologists Teuthologists