Achelia brevirostris Losina-Losinsky 1961

Achelia brevirostris Losina-Losinsky

Achelia brevirostris Losina-Losinsky, 1961:95–97, fig. 19.—Nakamura and Child, 1991:3–5, fig. 1A–F.

MATERIAL EXAMINED.—Aleutians, S of Adak Island, 51°55.6′N, 176°52.8′W, 201 m, R/V Miller Freeman, cruise 833, sta 47, 5 Aug 83 (1).

DISTRIBUTION.—Rarely taken, previous records are only from off Sakhalin Island in the Sea of Okhotsk in 48 m and from two localities in northern Japan in 400 to 479 m. This additional record extends its distribution eastward to the western Aleutians, but within known depths.

DIAGNOSIS.—Typical of genus; trunk circular in dorsal outline, lateral processes separated by tiny intervals, armed with paired low dorsodistal tubercles bearing setae. Ocular tubercle twice taller than its diameter, eyes prominent. Proboscis typical. Abdomen long, extending to distal tip of second coxae, fourth leg pair.

Chelifore scapes moderately long, slender, equal to first and second palp segments in length. Palp second segment equal in length to fourth, otherwise typical. Oviger seventh segment with many lateral setae longer than segment diameter. Legs moderately long, armed with many tiny short ventral setae and fewer longer dorsal setae. Propodus fairly short, armed with 3–4 heel spines and 10–12 shorter sole spines, auxiliary claws about 0.6 length of main claw.

Achelia brevirostris Losina-Losinsky

Achelia brevirostris Losina-Losinsky, 1961:95–97, fig. 19.

MATERIAL EXAMINED.—HOKKAIDO: SE of Akkeshi Bay, 42°41.8′N, 145°08.9′E, 400–479 m, KT83-11, staB15, 11 Jul 1983 (1, 2, 1 juv). HONSHU: Sanriku-oki, 39°11.4′N, 142°11.5′E, 430–435 m, KT84-9, sta SR4, 12 Jul 1984 (1).

DISTRIBUTION.—This species was previously reported from off Sakhalin Island in the Sea of Okhotsk in 48 meters, the type locality. The species is new to Japan. The depths at which these specimens were taken are considerably deeper than that of the type and extend the known depth range to 479 meters.

DISTRIBUTION.—The type locality for this species is the southeast coast of Korea, off Pusan and Kuryongp'o, at unknown depths. These specimens extend this distribution to the northern and southern Yellow Sea, an area rarely sampled for marine fauna, and establish a depth range of 59 to 150 meters.

Achelia brevirostris là một loài nhện biển trong họ Ammotheidae. Loài này thuộc chi Achelia. Achelia brevirostris được miêu tả khoa học năm 1961 bởi Losina-Losinsky.

shelf