Amphipod crustaceans (Corophiidea and Gammaridea) associated with holdfasts of Macrocystis pyrifera from the Beagle Channel (Argentina) and additional records from the Southwestern Atlantic Author Alonso, G. M. text Journal of Natural History 2012 2012-08-31 46 29 - 30 1799 1894 http://dx.doi.org/10.1080/00222933.2012.692825 journal article 10.1080/00222933.2012.692825 1464-5262 5200405 Gammaropsis (Gammaropsis) deseadensis Alonso, 1981 Gammaropsis deseadensis Alonso, 1981: 185–189 , figs. 1–28. Gammaropsis (Gammaropsis) deseadensis : Chiesa et al., 2005: 169 , 170, tb. 2, 172, tb. 3; De Broyer et al., 2007: 269 . Material examined Argentina ; Beagle Channel, northern Isla Despard , 54 ◦ 52 ′ S , 68 ◦ 10 ′ W , 8–12 m depth , colls. D. Aureliano and A. Ferlito , don. G. Lovrich : 1 ♂ 3 mm , 24 May 1999 , MACN- In 38513 . New catalogue numbers Argentina ; Santa Cruz province , Ría Deseado , 47 ◦ 45 ′ S , 65 ◦ 55 ′ W , March 1980 : HOLOTYPE , ♂ 3 mm , MACN-In 32182; ALLOTYPE , ovig. ♀ 3 mm , MACN-In 32183; PARATYPES , 15 ♀♀ , MACN-In 32184. Remarks The new record of Gammaropsis (Gammaropsis) deseadensis Alonso, 1981 in the Beagle Channel enlarges the geographical range of this species to the south.