Pyrunculus, Pilsbry, 1895
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978-2-85653-614-8 |
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https://treatment.plazi.org/id/03D087B2-FF78-BEB3-FF01-73CBF6D4FE69 |
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Felipe |
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Pyrunculus |
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Genus PYRUNCULUS Pilsbry, 1895 View in CoL
Pyrunculus Pilsbry, 1895 [in 1895-96]: 181. Type species: Bulla pyriformis A. Adams in Sowerby, 1850 [Recent, Indo-Pacific], by monotypy.
Synonym:
Sao H. & A. Adams, 1854 [in 1854-58]: 21 [non Sao Billberg, 1820 – Crustacea]. Type species: Bulla pyriformis A. Adams in Sowerby, 1850 [Recent, Indo-Pacific], by monotypy.
DIAGNOSIS. — Shell morphology. Shell external, fragile, pyriform, with only 1 whorl visible. Aperture longitudinal, as long as
the shell, wider anteriorly, narrowing abruptly posteriorly. Columella thickened, with a small tooth. Operculum absent. Anatomy. Digestive system with 3 unequal and tuberculate gizzard plates. There is no radula or jaws.
REMARKS. — The genus Pyrunculus is anatomically similar to Retusa , but differs in the shape of the gizzard plates, which have a smaller number of tubercles in the former. Other differences include the shape of the shell, much shorter and more deeply umbilicate apically in Pyrunculus than in any species of Retusa . Therefore the genus Pyrunculus is here maintained as valid.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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