Taxon profile


Philippia Gray, 1847

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


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

species Philippia japonica H. A. Pilsbry & Standen, 1895

Philippia japonica

species Philippia lutea (Lamarck, 1822) - Yellow Sundial-shell

Philippia lutea

Links and literature

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

ABRS (2009-2019): Australian Faunal Directory [], Australian Biological Resources Study, Canberra [as Philippia Gray, 1847]
Data retrieved on: 13 February 2015

Contributions to BioLib

Help us to expand this encyclopedia! If you are logged in, you can add new subtaxa, vernacular and scientific names, texts, images or intertaxon relationships for this taxon.