Taxon profile
species
Fossarella pacifica Thiele, 1925
kingdom Animalia - animals » phylum Mollusca - mollusks » class Gastropoda - gastropods » order Littorinimorpha » family Vanikoridae » genus Fossarella
ID: 1321941
pID: 1143938
Taxonomic rank: 150
Author of the record: Delsing Jan
Created: 2019-03-23 21:44:14 - User Delsing Jan
Data last updated: 2021-03-01 09:30:51
URL: https://www.biolib.cz/en/taxon/id1321941/
Text function: [[t:1321941;<em>Fossarella pacifica</em>]]
[[t:1321941;<em>Fossarella pacifica</em>]] Thiele, 1925
Reference: <a href="https://www.biolib.cz/en/taxon/id1321941/"><em>Fossarella pacifica</em></a>
pID: 1143938
Taxonomic rank: 150
Author of the record: Delsing Jan
Created: 2019-03-23 21:44:14 - User Delsing Jan
Data last updated: 2021-03-01 09:30:51
URL: https://www.biolib.cz/en/taxon/id1321941/
Text function: [[t:1321941;<em>Fossarella pacifica</em>]]
[[t:1321941;<em>Fossarella pacifica</em>]] Thiele, 1925
Reference: <a href="https://www.biolib.cz/en/taxon/id1321941/"><em>Fossarella pacifica</em></a>
Data source: WORMS
Images
Author: Bandel & Kowalke
Author: Thiele, J.
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Description
Author: Jan Delsing
Text ID: 92316
Text Type: 1
Page: 0
Created: 2019-03-23 21:47:38 - User Delsing Jan
Last change: 2019-03-23 21:48:08 - User Delsing Jan
Language: EN
Text function: [[t:1321941,textblock=92316,elang=EN;Description]]
Text ID: 92316
Text Type: 1
Page: 0
Created: 2019-03-23 21:47:38 - User Delsing Jan
Last change: 2019-03-23 21:48:08 - User Delsing Jan
Language: EN
Text function: [[t:1321941,textblock=92316,elang=EN;Description]]
F. pacifica is very similar to Fossarus orbignyi (Fossarinae, Planaxidae) in regard to the dimensions, shape and sculpture of the teleoconch. The 0.3 mm high protoconch of Fossarella pacifica takes 2.75 whorls. The embryonic part of 0.75 whorls is smooth and measures about 0.1 mm in diameter. The larval shell is sculptured with ten fine spiral lines. It is terminated by a well developed sinus.
Differences: The teleoconch in all essential features resembles that of Fossarus orbignyi (Planaxidae). The difference lies in the morphology of the protoconch. The early ontogenetic shell is very similar to those of the genera Macromphalina and Megalomphalus and documents that Fossarella is closely related to these genera and belongs to the Vanikoridae.
Differences: The teleoconch in all essential features resembles that of Fossarus orbignyi (Planaxidae). The difference lies in the morphology of the protoconch. The early ontogenetic shell is very similar to those of the genera Macromphalina and Megalomphalus and documents that Fossarella is closely related to these genera and belongs to the Vanikoridae.
Bandel K. & Kowalke T., 1997. Systematic value of the larval shell of fossil and modern Vanikoridae, Pickworthiidae and the genus Fossarus (Caenogastropoda, Mollusca).
Distribution
Author: Jan Delsing
Text ID: 92317
Text Type: 3
Page: 0
Created: 2019-03-23 21:47:57 - User Delsing Jan
Language: EN
Text function: [[t:1321941,textblock=92317,elang=EN;Distribution]]
Text ID: 92317
Text Type: 3
Page: 0
Created: 2019-03-23 21:47:57 - User Delsing Jan
Language: EN
Text function: [[t:1321941,textblock=92317,elang=EN;Distribution]]
This species has been described from the Samoa Islands by Thiele (1925). It also lives in the Indopacific near Satonda/lndonesia and at Cebu/Philippines as described below.
Bandel K. & Kowalke T., 1997. Systematic value of the larval shell of fossil and modern Vanikoridae, Pickworthiidae and the genus Fossarus (Caenogastropoda, Mollusca).
Author: Jan Delsing