Euryalidae Gray, 1840

Okanishi, Masanori, Olbers, Jennifer M. & Fujita, Toshihiko, 2013, A Taxonomic Review Of The Genus Asteromorpha Lütken (Echinodermata: Ophiuroidea: Euryalidae), Raffles Bulletin of Zoology 61 (2), pp. 461-480 : 462

Family Euryalidae Gray, 1840 , emend. Okanishi et al., 2011

Subfamily Euryalinae Gray, 1840 , emend. Okanishi et al., 2011 Asteromorpha Lütken, 1869

Asteromorpha Lütken, 1869: 42–45 ; Mortensen, 1933: 57; Baker, 1980: 70–72

Ophiogelas Koehler, 1930: 42–43

Type species. — Asteromorpha steenstrupi Lütken, 1869 (= Asterochema rousseaui Michelin, 1862 )

Diagnosis. — External ossicles on body either plate-shaped, in full contact with each other, or granule-shaped and only partly in contact. Teeth triangular or square. Oral papillae domed, granule-shaped, on lateral side of jaws. Tentacle pores with two arm spines from fourth (rarely fifth) arm segment. Radial shields may bear large domed tubercles. Oral side of vertebrae with an oral bridge. Lamina of distal arm spines smooth.

Remarks. — Based on this study, Asteromorpha is currently composed of four species, A. capensis ( Mortensen, 1925) , A. rousseaui ( Michelin, 1862) , A. koehleri ( Döderlein, 1898) , and A. tenax Baker, 1980 . A tabular key to the species of Asteromorpha is provided ( Table 1).

Species of this genus are distributed in south-eastern Africa, south-western and eastern Australia, central Indonesia and south-eastern New Caledonia ( Fig. 1).