Lithodidae Dromiidae Atelecyclidae Cancridae Pirimelidae Cheiragonidae Dorippidae Eriphiidae Epialtidae Inachidae Oregoniidae Pilumnidae Geryonidae Portunidae Potamidae Panopeidae Xanthidae Grapsidae Images Name list Publications Sites alex@equator.ru Whole checklist По-русски (in Russian) Porcellanidae Varunidae Camptandriidae Macrophthalmidae Pinnotheridae Hapalogastridae Plagusiidae Far East / North Pacific Black Sea Baltic Sea Freshwater crabs Arctic Ocean Designed and composed by Alex Alyakrinsky, 2011 Hapalogastridae Hapalogaster grebnitzkii Schalfeew, 1892 Far East / North Pacific Range. “From Bering Sea off the Pribilofs and Cape Newenham southward, along the Aleutian  Islands to Sitka, Alaska; Bering Island; Humboldt Bay, California.” [Schmitt, 1921, p.150].  From Bering Strait to southern Primorye, La Pérouse Strait and California, littoral to a depth of  90 m. [Vinogradov, 1950, p. 231].  Size. “Largest specimen of type lot: length of carapace 18 mm, width 18.5 mm”. [Schmitt,  1921, p.150]. Size of carapace: 19,0 x 18,0 mm (length x width). [Makarov, 1938, p. 238].  Hapalogaster grebnitzkii Schalfeew Hapalogaster grebnitskii Schalfeew, Melanges Biol. 13, 329, figs. 3a-36, Bull. Acad. Imp. Sci. St.  Petersb., 35, 335, 1892; Bouvier, Ann. Sci. Nat. (8), 1, 19, 1896; Holmes, Occas. Papers Calif. Acad.  Sci., 7, 115, 1900; Rathbun, H. A. E., 10, 163, 1904. Characters. - Carapace and legs finely pubescent; margin of carapace behind the cervical groove armed  with five spines, which decrease in size posteriorly. Legs armed with setose spines. Hand of right, or  larger cheliped "armed with two rows of spines on the outer surface and a row of small spines on the  inner edge; there is a broad smooth unarmed interval between the two rows of spines on the outer  surface. Abdomen as in H. cavicauda.  Type Localities. - Bering Islands and Kadiak, Alaska.  Remarks. - Bouvier thinks that this species is but a variety of H. mertensii Brandt, which ranges from  Atka, one of the Aleutian Islands, eastward and southward to Puget Sound. In view of their overlapping  ranges this might well be the case. The chief difference between them is in the number of longitudinal  rows of spines on the right hand: H. grebnitslcii has three, while H. mertensii has four. Holmes notes still  another difference, viz., the absence of a spine behind the gape of the fingers of the smaller hand of H.  grebnitslcii; but for this difference the small hands of each would be spined alike.  [Schmitt W.L. 1921, p.150].