Munidopsis antonii ( Filhol, 1884 )

Macpherson, Enrique & Segonzac, Michel, 2005, Species of the genus Munidopsis (Crustacea, Decapoda, Galatheidae) from the deep Atlantic Ocean, including cold-seep and hydrothermal vent areas, Zootaxa 1095 (1), pp. 1-60 : 14

Munidopsis antonii ( Filhol, 1884)

Galathodes antonii Filhol, 1884: 230 , fig. 2.

Munidospis beringana Benedict, 1902: 279 , fig. 23.

Munidopsis antonii .— Baba, 2005, 132, 284, figs 52–54 (complete synonymy and references).

Material examined. NE Atlantic, NORATLANTE, Stn 43­B07, 58º49’N, 53º03’W, 3360 m, 14.09.1969: 2 males 17.0– 35.1 mm, 1 female 29.2 mm. Off Namibia, WALDA. Stn CY08 , 22º06’S, 10º20’E, 3806 m, 22.06.1971: 1 ovig. female 36.8 mm, 2 females 36.1–37.5 mm.— Stn CY10 , 18º28’S, 10º31’E, 3530 m, 28.06.1971: 3 males 20.7–27.1 mm, 3 females 14.9–25.9 mm.—Stn CY11 , 17º30’S, 09º27’E, 4335 m, 30.06.1971: 2 males 28.5–29.2 mm. Gulf of Guinea, WALDA Stn CY22 , 00º20’S, 05º48’E, 3244 m, 30.07.1971: 1 male 28.8 mm.— Stn CW 2, 02º49’N, 04º24’E, 3694 m, 12.08.1971: 1 female 42.7 mm. N Atlantic, BIACORES, Stn 245, 40º57.9’N, 22º14’W, 4270 m, 14.11.1971: 1 male 34.7 mm.—Stn 251, 47°38' N ,, 08°56’W, 3590 m, 18.11.1971: 1 male 21.8 mm. Bay of Biscay , BIOGAS 3, Stn CV28 , 47º25’N, 09º36’W, 4023 m, 28.08.1973: 1 male 30.0 mm. Bay of Biscay , BIOGAS 5, Stn CP 06, 44º20’N, 04º54’W, 4460 m, 20.06.1974: 1 male 10.0 mm. Bay of Biscay, BIOGAS 6, Stn CP 19, 44º25’N, 04º51’W, 4434 m, 28.10.1974: 1 male 13.5 mm. Off South Africa, WALVIS, Stn CP 14, 32°29’S, 13°26’E, 3675 m, 13.01.1979: 1 ovig. female 39.6 mm, 1 female 14.5 mm.— Stn CP 15, 32º29.4’S, 13º22’E, 3675 m, 13.01.1979: 1 female 30.6 mm. NE Tropical Atlantic, EUMELI 2, Stn CP 02, 18º35.90’N, 20º59.40’W, 3134 m, 27.01.1991: 1 male 35.4 mm. Azores Islands, TALISMAN, 42º15’N, 23º37’W, 3975 m, 24.08.1883: 1 syntype male 23.8 mm ( MNHN). NW Atlantic, MAR­ECO, Stn 50 (Lstn 373), 43º68’N, 28º 34’ºW, 2598 m, 12.07.2004: 16 M 20.0­ 34.1 mm, 2 ovig. females 32.5–33.6 mm, 2 females 31.5–36.1 mm.— Stn 50 (Lstn 374), 43º68’N, 28º 34’W, 2977 m, 13.07.2004: 1 male 8.5 mm .

Remarks. A complete redescription and revision of the species is included in Baba (2005). Munidopsis antonii belongs to the group of species that have some gastric spines on the carapace, the rostrum without pair of lateral spines, the eyestalk slender, with the main eye­spine on the mesial end of eyestalk, the fixed finger of chelipeds without denticulated carinae on the distolateral margin, the first pair of walking legs overreaching the end of chelipeds, dactyli of walking legs bearing a cristiform ridge fringed with setae on each of the lateral and mesial faces and epipods present on chelipeds. Munidopsis beringana Benedict, 1902 , from the Bering Sea is considered to be a junior synonym of M. antonii by Baba (2005).

Distribution and habitat. Previously known from the Azores Islands (type locality) at 3975–4010 m ( Filhol 1884, A. Milne­Edwards & Bouvier 1900), southwestern Australia, off Juan Fernandez ( Henderson 1888), Bering Sea, 3241 m ( Benedict 1902, as M. beringana ), southern part of Davis Strait, 2626 m ( Hansen 1908), Bay of Biscay, 3910­ 4510 m ( Bouvier 1922; de Saint­Laurent 1985), off Oregon, 2800–3990 m ( Ambler 1980, as M. beringana ), Japan, 3420­3960 m (Baba 1982), Mozambique, off Sri Lanka, Tasman Sea, off Zamboanga, Costa Rica, Gulf of Panama, 366–3800 m ( Baba 2005). The present material was collected from the northwestern Atlantic (58º49’N) and Bay of Biscay to the southeastern Atlantic (off South Africa, 32º29’S) between 3134 and 4460 m. No specimens were collected in hydrothermal vent and cold­seep areas ( Table 2).