Omalogyra Jeffreys, 1859b

Sartori, André F. & Bieler, Rüdiger, 2014, Three new species of Ammonicera from the Eastern Pacific coast of North America, with redescriptions and comments on other species of Omalogyridae (Gastropoda, Heterobranchia), Zootaxa 3872 (1), pp. 1-21 : 12

publication ID	https://doi.org/ 10.11646/zootaxa.3872.1.1
publication LSID	lsid:zoobank.org:pub:91188F42-BCDB-4132-987F-89378068033C
persistent identifier	https://treatment.plazi.org/id/D42D87DB-6B2E-FFBF-FF72-FA4124649972
treatment provided by	Felipe
scientific name	Omalogyra Jeffreys, 1859b
status

Treatment

Genus Omalogyra Jeffreys, 1859b View in CoL

Omalogyra Jeffreys, 1859b, p. 498 View in CoL . Type species by subsequent designation of Bucquoy et al. (1884, p. 78): Truncatella atomus Philippi, 1841, p. 54 , pl. 5, figs 4a–d.

Ammonicerina O. G. Costa, 1861 , p. 67. Type species by subsequent designation of Dall (1927, p. 134, as “Ammonocerina”): Ammonicerina simplex O. G. Costa, 1861 View in CoL , p. 72, pl. 11, figs 3a, b.

Homalogyra Jeffreys, 1867, p. 67 View in CoL (unjustified emendation).

Helisalia Laseron, 1954, p. 16 View in CoL . Type species by original designation: Helisalia liliputia Laseron, 1954, pp. 16–17 View in CoL , figs 45,45a.

Diagnosis. Shell extremely minute; protoconch smooth or finely nodulose, devoid of conspicuous axial or spiral sculpture; sculpture of the teleoconch weak or absent; aperture rounded; each radular row composed of a single dagger-like tooth, flanked by one lateral plate on each side [formula 0-(1)-1-(1)-0]; cephalic tentacles forming rounded lobes.