Uncancylus

Uncancylus is a genus of small, freshwater, air-breathing limpets, aquatic pulmonate gastropod molluscs in the family Planorbidae, the ram's horn snails and their allies.

Uncancylus
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Hygrophila
Superfamily:
Planorboidea
Family:
Planorbidae
Subfamily:
Planorbinae
Tribe:
Ancylini
Genus:
Uncancylus

Pilsbry, 1913
Species

See text

Anatomy

These animals have a pallial lung, as do all pulmonate snails, but they also have a false gill or "pseudobranch" which can serve perfectly well as a gill when they are unable to reach the surface for air.

Species

Species within the genus Uncancylus include:[1][2]

gollark: Combining the O(n) time complexities of null-terminated strings with the... I don't know, nonsliceability? of length-prefixed strings and adding fun new things, length-terminated strings.
gollark: gollarC™ also features my innovative length-terminated strings.
gollark: You have to pass other ones for pointer arithmetic and such.
gollark: Actually, #2 would be hard, so "memory safety enforced via disabling pointers unless you pass a pointer aptitude test".
gollark: gollarC features:- osmarkslibc\™️ built in- memory safety enforced via disabling pointers unless you ~~provide mathematical proof that your use of them is always valid in every way~~ pass pointer aptitude tests (plus ones for pointer arithmetic etc.)- completely broken backward compatibility wrt. `switch`- lambdas for some reason- length-terminated strings- `quaternion.h`- fearless concurrency via an optional setting to deny all inter-thread shared memory access- macro for automatically generating yet another linked list implementation for some reason

References
  1. dos Santos, S. B. (2003). "Estado atual do conhecimento dos ancilídeos na América do Sul (Mollusca: Gastropoda: Pulmonata: Basommatophora)" [Current state of knowledge of ancylids in South America (Mollusca: Gastropoda: Pulmonata: Basommatophora)] (PDF). Revista de Biología Tropical (in Portuguese). Redalyc. 51 (3): 191–223. Retrieved 6 May 2014.
  2. IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org>. Downloaded on 06 May 2014.


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