Ascorhynchus armatus (Wilson, 1881)

Scaeorhynchus armatus Wilson, 1881: 248–249, L. 2, figs. 3–4, L. 5, figs. 26–31.

Ascorhynchus agassizi Bouvier, 1937: 38

Ascorhynchus armatus — Hedgpeth, 1948: 255, figs. 42a, 43

Type locality — Blake, locality 308, 41º24'45"N 65º35'30"W, 2271.37 m

Material examined. Maurit-1107: MU023, 1♂; MU031, 5♂, 3♀; MU033, 2♀; MU058, 2♂, 1 indet; MU069, 1♂. Maurit-0811: MU080, 1♂; MU092, 7♂, 6♀; MU093, 2♂, 3♀; MU094, 2♂, 1♀; MU116, 1♂, 1♀. Maurit-1011: MU258, 1♀.

Remarks. Our material agrees with the description and figures provided by Wilson (1881).

Habitat. Ascorhynchus armatus has been collected from muddy bottoms (Bouvier 1937 as Ascorhynchus agassizi; Stock 1990) within a wide bathymetric range extending from 396 to 2515 m. Our material was collected from muddy bottoms at 532 to 1808 m.

Geographical distribution. This species has a wide distribution in the West Atlantic, extending from the north coast of the United States to the Gulf of Mexico and the Caribbean Sea (Hedgpeth 1948; Raiskii & Turpaeva 2006). In the East Atlantic, it has been reported from the south of Western Sahara, Mauritania (Stock 1990; Bamber & Thurston 1993) and Senegal (Bouvier 1937 as Ascorhynchus agassizi). Our specimens were collected from the south part of the Bank of Arguin (Mauritania).