''Onustus'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
of large
sea snails,
marine gastropod mollusk
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...
s in the
family
Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...
Xenophoridae
Xenophoridae, common name, commonly called carrier shells, is a family (biology), family of medium-sized to large sea snails, marine (ocean), marine gastropod mollusks in the clade Littorinimorpha.
According to the Taxonomy of the Gastropoda (B ...
, the carrier shells.
Description
Shells medium-sized to large (diameter of base without attachments 80–160 mm; height of shell 42–100 mm), thin-shelled, with wide peripheral flange, simple or weakly digitate, porcellanous ventrally.
Umbilicus narrow to wide, sometimes plugged with callus. Foreign objects attached to periphery on few to all
whorls, usually small and inconspicuous, leaving most of the shell surface exposed.
[Kreipl, K. & Alf, A. (1999): ''Recent Xenophoridae''. 148 pp. incl. 28 color plts. ConchBooks, Hackenheim, .]
Species
Species within the genus ''Onustus'' include:
*''
Onustus caribaeus
''Onustus caribaeus'' is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.
Description
The anatomy of O. Caribaeus. is very similar to all members of the Xenophoridae family. Their shells ha ...
''
( Petit de la Saussaye, 1857)
*''
Onustus exutus
''Onustus exutus'' is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.
Description
Distribution
''Onustus exustus'' is distributed in the Central Indo-Pacific from southern Japan to s ...
''
(Reeve
Reeve may refer to:
Titles
*Reeve (Canada), an elected chief executive of some counties, townships, and equivalents
*Reeve (England), an official elected annually by the serfs to supervise lands for a lord
*High-reeve, a title taken by some Englis ...
, 1842)
*''
Onustus indicus
''Onustus indicus'' is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.
Description
Distribution
''Onustus indicus'' is distributed in the tropical Indian Ocean (excluding Arabian Sea), t ...
''
( Gmelin, 1791)
*''
Onustus longleyi
''Onustus longleyi'' is a species of large sea snail, a marine gastropod mollusk in the family Xenophoridae, the carrier shells.
Description
These sea snails are usually a white-cream color, with a cream underside. Their spire is rather smooth ...
''
Bartsch Bartsch is a German surname. Notable people with the surname include:
* Adam Bartsch (1757–1821), German scholar of old master prints and artist
* Dietmar Bartsch (born 1958), German politician (Die Linke)
* Jacob Bartsch (1600–1633), German as ...
, 1931
References
External links
Xenophoridae
{{Xenophoridae-stub