''Cassidula nucleus'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of air-breathing

marine snail A snail is, in loose terms, a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name ''snail'' is also used for most of the members of the molluscan class Ga ...

, a pulmonate 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 ...

in the family

Ellobiidae Ellobiidae, common name the hollow-shelled snails, is a family of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the clade Eupulmonata.Bouchet, P. (2012). Ellobiidae. Accessed through: World Register of Marine Sp ...

Distribution

''Cassidula nucleus'' occurs in India, Vietnam, Malaysia, China.

Description

The shell length of an adult snail is 16.0 mm.Shanmugam A. (1998). "Reproductive cycle in an ellobiid snail ''Cassidula nucleus''". '' Indian Journal of Fisheries'' 45(3): 301-305
abstract

Ecology

''Cassidula nucleus'' is a predominantly

mangrove A mangrove is a shrub or tree that grows in coastal saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evolution in several ...

-associated species.Zvonareva S., Kantor Yu., Li X. & Britayev T. (2015). "Long-term monitoring of Gastropoda (Mollusca) fauna in planted mangroves in central Vietnam". ''

Zoological Studies ''Zoological Studies'' is a peer-reviewed open access scientific journal covering zoology, with focuses on animal behavior, comparative physiology, evolution, ecology, systematics and biogeography. It is published by the Biodiversity Research Cent ...

'' 54: 39. .

References

External links

* Dious S. R. J. & Kasinathan R. (1994). "Tolerance limits of two pulmonate snails ''Cassidula nucleus'' and ''Melampus ceylonicus'' from Pitchavaram mangroves". '' Environment and ecology'', Kalyani, 12(4): 845-849. Ellobiidae Gastropods described in 1791 Taxa named by Johann Friedrich Gmelin {{Ellobiidae-stub