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Taxon profile

genus

Solatisonax Iredale, 1931

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

Description

Teleoconch: shell small to large (usually under 15 mm, rarely to 30 mm), in most cases thin-shelled, lens-shaped to roundly cone-shaped; umbilicus always open, moderately wide to wide (ca. 15-35 % of shell diameter); whorls inflated, large specimens frequently on either side of the peripheral keel distinctly concave; distinct axial growth marks on entire shell surface; upper (apical) side: juvenile shell whorls with strong, wavy axial ribs crossing a strong nodose spiral rib (UPR) at a distance from the periphery of 1/3 to 1/2 of the whorl width; nodose rib weaker on subsequent whorls, above it (convex area of apical side) usually several weak and ± smooth spiral ribs, below it (concave area of apical side in larger specimens) 1-5 ± distinct, often finely nodose spiral ribs; prominent peripheral keel formed by lower peripheral rib, with upper point of whorl attachment at or somewhat below this rib; keel simple or traversed by several weak spiral sutures; base either (a) with distinct fine infraperipheral rib and few weaker spiral ribs on either side of it, otherwise ± smooth except for axial folds forming coarse, non-demarcated umbilical crenae which occasionally are sunken into the umbilicus, or (b) infraperipheral rib very weak and entire base with ca. 15-20 fine spiral ribs increasing in width towards umbilicus, innermost of which is wider with ± regular nodes; umbilical wall with growth lines, with or without fine spiral ribs; apical side colored off-white or diffusely blotched with tan, concave area and base lighter. Protoconch: small to large (ca. 0.7-1.3), weakly to distinctly heterostrophic, without anal keel. Radula: five-toothed taenioglossate (injussa). Operculum: horny, round, flat to concave, with peg-like projection on body side.
Source: Bieler, 1993. Architectonicidae of the Indo-Pacific (Mollusca, Gastropoda).
Author: Jan Delsing

Included taxa

Number of records: 17

species Solatisonax acutecarinata J. Thiele, 1925
species Solatisonax alleryi (G. Seguenza, 1876)
species Solatisonax atkinsoni Smith, 1891
species Solatisonax borealis (A.E. Verrill & S. Smith in A.E. Verrill, 1880)
species Solatisonax cabrali D. de Oliveira Tenório, J.C.N. Barros, J. de A. Francisco & G.F. Silva, 2011
species Solatisonax certesi (P. Dautzenberg & H. Fischer, 1896)
species Solatisonax dolfussi (P. Dautzenberg & H. Fischer, 1896)
species Solatisonax hemisphaerica (G. Seguenza, 1876)
species Solatisonax injussa Iredale, 1931
species Solatisonax kilburni Bieler, 1993

Solatisonax kilburni

species Solatisonax orba Bieler, 1993
species Solatisonax propinqua Bieler, 1993
species Solatisonax radialis W. H. Dall, 1908
species Solatisonax rehderi Bieler, 1993
species Solatisonax rudigerbieleri D. de Oliveira Tenório, J.C.N. Barros, J. de A. Francisco & G.F. Silva, 2011
species Solatisonax sigsbeei Dall, 1889

Solatisonax sigsbeei

species Solatisonax supraradiata (Martens, 1904)

Links and literature

EN Australian Faunal Directory [07a45b1e-0908-441c-b171-6db81189e08f]

ABRS (2009-2015): Australian Faunal Directory [http://www.environment.gov.au/biodiversi...], Australian Biological Resources Study, Canberra [as Solatisonax Iredale, 1931]
Data retrieved on: 13 February 2015

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