Sagenaster Mah 2007, GEN. NOV.

• Main Author: Mah, Christopher
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2007
• Subjects: Biodiversity; Taxonomy; Animalia; Echinodermata; Asteroidea; Forcipulatida; Zoroasteridae; Sagenaster; Alaska; Aleutian Islands
• Online Access: https://doi.org/10.5281/zenodo.10545070; http://treatment.plazi.org/id/03F187FAFFA7FFE385188F5C6F93FB4F

SAGENASTER MAH GEN. NOV. Etymology : Latin ( sagena ) for fish-net, referring to the reticulate or net-like skeleton in this genus. Type species : Zoroaster evermanni Fisher, 1905. Diagnosis : Disc and arm skeleton reticulate. Plates cruciform, forming open papular fields. Primary spines present on all plates. Internal buttress absent. SAGENASTER EVERMANNI (FISHER, 1905) (W/SYNONYM EVERMANNI MORDAX FISHER, 1919) (FIGS 2E, F) Zoroaster ( Myxoderma) evermanni Fisher, 1905: 317; not H.L. Clark, 1913: 198 (= Myxoderma sacculatum ). Zoroaster evermanni Fisher, 1919a: 390; H.L. Clark, 1920: 100; 1923: 152; Fisher, 1928: 40, pl. 13, fig. 3, pl. 14, figs 1.1a, 1b, pl. 18, fig. 4; pl. 19, fig. 1; pl. 20, figs 3, 4; Alton, 1966: 1709; Carey, 1972: 41; Lambert, 1978a: 23; 1978b: 64; Maluf, 1988: 44, 125; Nybakken et al ., 1998: 1777; Clark & Mah, 2001: 233. Zoroaster evermanni mordax Fisher, 1919a: 391, 1928: 34, 43, pl. 13, fig. 4; pl. 14, fig. 2; pl. 19, fig. 2. Occurrence : Aleutian Islands (Alaska), Queen Charlotte Island (Canada), Oregon, Washington to S. California, Mexico, 100–2710 m. Material : Alaska: CASIZ 115898, Aleutian Islands, Unalaska Island, 54.00°21.50″N, 167.00°47.50″W, 905–910 m, Coll. 14.vi.1979 (wet spec. R = 17.2, r = 1.6). Oregon: NMNH E 10356, SW of mouth of Columbia River, 45°51.5′N, 124°42′W. 823 m, Coll. 6.iii.1962. (1 dry spec. R = 12.6, r = 0.9 cm) NMNH E 10359 SW of mouth of Columbia River, 45°52.3′N, 124°52′W. 823 m, Coll. 13.v.1963. (1 dry spec. R = 9.1, r = 0.9 cm) NMNH E16023, SW of mouth of Columbia River, 45°52′N, 124°54′W. 823 m, Coll. 27.v.1962 (1 dry spec. R = 9.2, r = 0.9 cm); NMNH E 10360, SW of mouth of Columbia River, 45°40.5′N, 124°55′W, 1372 m, Coll. 2.viii.1963. (1 dry spec. R = 3.2, r = 0.35 cm) NMNH E 10357, SW of mouth of Columbia River, 45°52′N, 124°54′W. 732 m, Coll. 23.i.1963. (1 dry spec. R = 14.2, r = 0.8 cm) NMNH E 16019, SW of mouth of Columbia River, 45°56′N, 124°51′W. 682 m, Coll. 12.iii.1962. [1 dry spec. R = ∼8.2, r = 0.8 cm (arm tips broken)] NMNH E 10358, ...