Asteronychidae Ljungman, 1867

Stöhr, Sabine, Hugall, Andrew F., Thuy, Ben & Martynov, Alexander, 2018, Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification, European Journal of Taxonomy 416, pp. 1-35 : 6-7

publication ID	https://doi.org/ 10.5852/ejt.2018.416
publication LSID	lsid:zoobank.org:pub:AD094812-5768-43E9-BCC2-9226E69F0820
DOI	https://doi.org/10.5281/zenodo.3816321
persistent identifier	https://treatment.plazi.org/id/039E87E8-1F65-302C-FDB4-F9287A33FE3E
treatment provided by	Valdenar
scientific name	Asteronychidae Ljungman, 1867
status

Treatment

Family Asteronychidae Ljungman, 1867 View in CoL

Type genus

Asteronyx Müller & Troschel, 1842 View in CoL (type species: A. loveni Müller & Troschel, 1842 View in CoL ).

Other genera

Astrodia Verrill, 1899b View in CoL , Astronebris Downey, 1967 View in CoL , Ophioschiza H.L. Clark, 1911 .

Diagnosis

Dorsal disc with thickened skin, few or no scales, radial shields bar-like, almost meeting in disc centre. Long, tapering arms, covered by thickened skin, lacking dorsal plates. Multiple columns of spiniform teeth, dental plate entire. Arms not branching. All vertebrae without oral bridge. Gonads restricted to disc. Arm spine articulation as slightly tumid regular stereom with large oval or round opening.