Paulasterias tyleri gen. et sp., Mah, Christopher, Linse, Katrin, Copley, Jon, Marsh, Leigh, Rogers, Alex, Clague, David & Foltz, David, 2015

Mah, Christopher, Linse, Katrin, Copley, Jon, Marsh, Leigh, Rogers, Alex, Clague, David & Foltz, David, 2015, Description of a new family, new genus, and two new species of deep-sea Forcipulatacea (Asteroidea), including the first known sea star from hydrothermal vent habitats, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 174 (1), pp. 93-113 : 98

Paulasterias tyleri gen. et sp. nov.

1′. Six arms in all individuals examined ( Fig. 7 ). Dense thickets of spinelets absent ( Fig. 7B,D ). Few short spines present. Spines widely distributed, rarely occurring on surface which is mostly covered by skin and pedicellariae. No septa observed at internal arm junction. Adoral carina absent, no adambulacral plates in contact. Tube foot rows biserial along entire arm distance. North Pacific.

Figures

Figure 7. Paulasterias mcclaini gen. et sp. nov. A, in situ image of USNM 1138789 from CoAxial North Seamount, North Pacific; R = 3.5 cm, r = 0.4 cm. B, paratype USNM 1138789 (wet). Abactinal surface. C, madreporite with spiny ring (paratype USNM 1138787). D, paratype USNM 1138787 (dry, R = 2.4 cm, r = 0.2 cm). Abactinal/lateral view showing pedicellariae and spines on dry specimen. E, paratype USNM 1138789 (wet, scale as before). Oral surface. F, paratype USNM 1138787 (dry, scale as before). Oral surface showing spines, adambulacral plates.