''Cylichnium'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of very small
sea snail
Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
s, unassigned in a family in the order
Cephalaspidea
The order Cephalaspidea, also known as the headshield slugs and bubble snails, is a major taxon of sea slugs and bubble snails, marine (ocean), marine gastropod mollusks within the larger clade Euopisthobranchia. Bubble shells is another commo ...
(bubble snails).
[MolluscaBase eds. (2020). MolluscaBase. ''Cylichnium'' Dall, 1908. Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=138053 on 2020-10-03]
Species
* ''
Cylichnium africanum''
(Locard, 1897)
* ''
Cylichnium ancillarioides''
(Schepman, 1913)
* ''
Cylichnium chinense''
(G.-Y. Lin & W.-L. Wu, 1994)
* ''
Cylichnium cylindrellum''
(Dall, 1908)
* ''
Cylichnium domitum''
(Dall, 1908)
* ''
Cylichnium guineense''
Thiele, 1925
* ''
Cylichnium jucundum''
Thiele, 1925
* ''
Cylichnium mucronatum''
Valdés, 2008
* ''
Cylichnium nanum''
Valdés, 2008
* ''
Cylichnium oliviforme'' (
R. B. Watson, 1883)
* ''
Cylichnium spatha''
(R. B. Watson, 1883)
* ''
Cylichnium waldae''
Bouchet, 1975
;Species brought into synonymy:
* ''Cylichnium matsumotoi''
Habe, 1955: synonym of ''Cylichnium ancillarioides''
(Schepman, 1913)
* ''Cylichnium sumatrense''
Thiele, 1925: synonym of ''Cylichnium ancillarioides''
(Schepman, 1913)
References
* Valdés, Á. (2008). Deep-sea "cephalaspidean" heterobranchs (Gastropoda) from the tropical southwest Pacific. In: Héros, V. et al. (eds) Tropical Deep-Sea Benthos 25. Mémoires du Muséum national d'Histoire naturelle. 196: 587-792
External links
Serge GOFAS, Ángel A. LUQUE, Joan Daniel OLIVER, José TEMPLADO & Alberto SERRA (2021) - The Mollusca of Galicia Bank (NE Atlantic Ocean); European Journal of Taxonomy 785: 1–114
Cephalaspidea
{{Heterobranchia-stub