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species

Pectinodonta alis B. A. Marshall, Puillandre, Lambourdière, Couloux & Samadi, 2016

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  family Pectinodontidae »  genus Pectinodonta

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Pectinodonta alis

Author: Marshall, B. et al

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Description

Shell of moderate size, up to 9.80 mm long, strongly elevated (length/height ratio 2.10-2.36, mean 2.25, SD 0.13, n = 3), apex distinctly inclined anteriorly. Anterior end occupying 14.2-20.0% (mean 17.8%, SD 3.10, n = 3) of shell length; anterior slope weakly concave, almost flat, lateral slopes weakly convex, posterior slope broadly convex. Aperture gently arched from side to side. With increasing growth, longitudinal axis gradually twisting a few degrees anticlockwise between teleoconch I and end of adult teleoconch. Teleoconch I conical, length 1.50-2.00 mm, anterior and lateral slopes flat or weakly concave, posterior slope weakly convex or more or less flat, glossy, essentially smooth apart from commarginal growth lines and obscure radial lines. Teleoconch II sculptured with radial costae and corn-marginal ridges, rounded nodules at intersections; fine, crisp, crowded commarginal growth lines throughout. Radial costae rounded, multiplying by intercalation, interspaces much narrower than each costa. Radular teeth (adult, paratyp NMNZ M.306246 ex MNHN IM-2009-7722) roughly 170 mu long, with 12 cusps, Holotype length 9.80 mm.
Marshall, B. A. et al., 2016, Deep-sea wood-eating limpets of the genus Pectinodonta Dall, 1882 (Mollusca: Gastropoda: Patellogastropoda: Pectinodontidae) from the tropical West Pacific.

Distribution

Solomon Islands and Vanuatu, living at 354-387
Marshall, B. A. et al., 2016, Deep-sea wood-eating limpets of the genus Pectinodonta Dall, 1882 (Mollusca: Gastropoda: Patellogastropoda: Pectinodontidae) from the tropical West Pacific.
Author: Jan Delsing

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