Tylomelania scalariopsis

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Tylomelania scalariopsis
Not listed in IUCN Red List[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Caenogastropoda
clade Sorbeoconcha
Superfamily: Cerithioidea
Family: Pachychilidae
Genus: Tylomelania
Species: T. scalariopsis
Binomial name
Tylomelania scalariopsis

Melania scalariopsis Sarasin & Sarasin, 1897

Tylomelania scalariopsis is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae.


This species occurs in Lake Poso dreinage, Sulawesi, Indonesia.[3][2] The type locality is the Poso River, 400 m against the river current.[2]


The shell has 11-12 whorls.[2]

The width of the shell is 12 mm.[2] The height of the shell is 34 mm.[2] The width of the aperture is 6.5 mm.[2] The height of the aperture is 10 mm.[2]

There are 6 concentric lines on the operculum.[2]


  1. ^ IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 29 January 2013.
  2. ^ a b c d e f g h i (in German) Sarasin P. & Sarasin F. (1897). "Über die Molluskenfauna der großen Süßwasser-Seen von Central-Celebes". Zoologischer Anzeiger 539/540: 308-320. page 315-316.
  3. ^ 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. doi:10.1111/j.1095-8312.2005.00515.x.

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