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species

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Philine polaris Aurivillius, 1885

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Opistobranchia - opisthobranchs »  family Philinidae »  genus Philine

Taxon in country check-lists*

Arctic, North America: Alaska, Canada

* List of countries might not be complete

Description

Testa tenuissima, fragilis, pellucida, oblongo-ovata. Anfractibus 3-4 apertura ampla, ad basim expansa, supine contracta, labro externo magis quem in Ph. finmarchica appresso. Superficie lineis spiralibus tenuissimus, duplicatis, catenulato inflexis obducta. Radulae formula: 1.0.1.2. uncinis Iamellas laterales edentulae longitudine aequantibus. Long., 3; lat., 2.5-2 mm. ( Aurivillius.)
Shell very thin, fragile, pellucid, oblong-ovate; whorls 3-4. Aperture ample, expanded at base, contracted above, the outer lip more appressed than in P. finnutrchica. Surface covered with spiral, very delicate pairs of lines, scalloped chain-wise. (Tryon and Pilsbry, Manual of Conchology.)
Oldroyd, I.S. The Marine Shells of the West Coast of North America. Volume II.1.

Distribution

Arctic Sea to Nanaimo, Vancouver Island, British Columbia.
Oldroyd, I.S. The Marine Shells of the West Coast of North America. Volume II.1.
Author: Jan Delsing

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Philine polaris Aurivillius, 1885]
Data retrieved on: 23 November 2013

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