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Trochus kotschyi , the first Indian Ocean record of the genus Osilinus (Mollusca: Gastropoda: Trochidae)
Author(s) -
Herbert D. G.
Publication year - 1994
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1994.tb05269.x
Subject(s) - biology , sympatric speciation , gastropoda , genus , mollusca , zoology
The species Trochus kotschyi Philippi, 1849, and Priotrochus obscurus (Wood, 1828) have been much confused in the past. Consistent differences between these taxa in respect of shell morphology, external anatomy and radular and opercular form are demonstrated. The distribution of T. kotschyi and the extent to which it and P. obscurus are sympatric are discussed. T. korschyi is referred to the genus Osilinus Philippi, 1847, a new combination and the first record of the genus from the Indo‐West Pacific. The species is thought to be a pre‐Miocene relict reflecting a mid‐Tethyan origin of the genus. A note on the type species designation of Osilinus is provided.