''Tylomelania toradjarum'' is a species of

freshwater snail Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs ...

with an operculum, an aquatic

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family Pachychilidae. The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

''toradjarum'' is in honor of Toraja (spelling variant Toradja), an ethnic group indigenous to

Sulawesi Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Ar ...

Distribution

This species is endemic to

Lake Poso Lake Poso ( id, Danau Poso) is a lake in Central Sulawesi, Indonesia, and the third-deepest lake in Indonesia. The town of Pendolo is situated at the southern end of the lake, the town of Tentena is located at the northern end, while a numbe ...

, Sulawesi, Indonesia. The type locality is the

Description

The shell has 7-9

whorls A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral d ...

. The width of the shell is 16 mm. The height of the shell is 54 mm. The width of the aperture is 10 mm. The height of the aperture is 15 mm. There are 9 concentric lines on the operculum.

References

External links

* von Rintelen T. & Glaubrecht M. (2005). "Anatomy of an adaptive radiation: a unique reproductive strategy in the endemic freshwater gastropod ''Tylomelania'' (Cerithioidea: Pachychilidae) on Sulawesi, Indonesia and its biogeographical implications." '' Biological Journal of the Linnean Society'' 85: 513–542. . toradjarum Gastropods described in 1897 {{Pachychilidae-stub