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Taxon profile

genus

Philippia Gray, 1847

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Allogastropoda »  family Architectonicidae - Sundials

Description

Shell similar to Architectonica but smaller, of conical shape, and lacking axial sculpture, apart from crenulations around the umbilicus. Operculum circular, flat to concave, multispiral, with a subcentral nucleus.
Powell, A.W.B., 1979. The New Zealand Mollusca: Marine Land and Freshwater Shells.
Teleoconch: shell medium-sized (approximately 10 mm), roundly cone-shaped with narrow umbilicus (ca. 14 % of shell diameter); whorls bulging; upper (apical) side usually completely smooth, rarely with weak spiral striae; early posdarval shell sometimes with ± weak nodular sculpture; in Recent species upper peripheral rib completely reduced, therefore shell periphery formed by two ribs (LPR and less prominent IPR); upper point of whorl attachment at or below LPR; base smooth except for nodose rib surrounding umbilicus (UC); umbilical wall without spiral ribs; uniformly yellowish to dark brown, with regular fleck pattern on peripheral ribs, surrounding umbilicus (UC) always light Protoconch: small to medium-sized (ca. 0.7-1.0), distincdy heterostrophic, callous with distinct, short anal keel. Radula: five-toothed taenioglossate; rachidian with narrow central cusp flanked on either side by an equally strong, filiform cusp (P. lutea). Operculum: horny, circular with broad last whorl, flat with mushroom-shaped, peg-like projection on body side; peg with grooves arranged in clockwise fashion.
Bieler, R. (1993). Architectonicidae of the Indo-Pacific (Mollusca, Gastropoda).
Author: Jan Delsing

Included taxa

Number of records: 3

species Philippia hybrida (Linnaeus, 1758)

Philippia hybrida - 000000000101000

species Philippia japonica H. A. Pilsbry & Standen, 1895
species Philippia lutea (Lamarck, 1822) - Yellow Sundial-shell

Philippia lutea - 000000000111


Links and literature

EN Australian Faunal Directory [0bd445be-ea95-454b-8c24-bda2251db489]

ABRS (2009-2019): Australian Faunal Directory [https://biodiversity.org.au/afd/home], Australian Biological Resources Study, Canberra [as Philippia Gray, 1847]
Data retrieved on: 13 February 2015

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