. Decapod crustaceans of the northwest coast of North America ... Crustacea -- North America. Fig. 41. Spirontocaris hrachy- dactyla. S . Station 2928. a. Side (X 3)- b. Chela of first pair (X 5)- ened portion of outer flagellum extending nearly half its length beyond the scale. Antennal peduncle just as long as antennular. Half the last segment of the maxilliped Hes be- yond the scale. The first pair of feet just reach the tip of the scale; the fingers are unusually short, as above mentioned. No spine on fourth segment of abdomen; sixth segment twice as long as fifth; telson broken. Dimension


. Decapod crustaceans of the northwest coast of North America ... Crustacea -- North America. Fig. 41. Spirontocaris hrachy- dactyla. S . Station 2928. a. Side (X 3)- b. Chela of first pair (X 5)- ened portion of outer flagellum extending nearly half its length beyond the scale. Antennal peduncle just as long as antennular. Half the last segment of the maxilliped Hes be- yond the scale. The first pair of feet just reach the tip of the scale; the fingers are unusually short, as above mentioned. No spine on fourth segment of abdomen; sixth segment twice as long as fifth; telson broken. Dimensions. —^iki of ovig- erous female, exclusive of ros- trum and telson, mm., length of carapace mm. Distribution. — Southern California, deep water. The type, an ovig- erous female, was dredged off Santa Cruz Island, in 266 fathoms {Alba- tross station 2948). A much smaller female comes from off San Diego, 417 fathoms {Albatross station 2928). SPIRONTOCARIS CAMTSCHATICA (Stimpson). Hippolyte cavitschatica Stimpson, Proc. Acad. Nat. Sci. Phila., xii, p. 33, [102], i860. Belongs to the gaimardii group. Female. — Rostrum a little longer than the carapace, shorter than antennal scale, nearly straight (or shghtly concave above), horizontal, armed with 4 or 5 teeth above, the ante- rior tooth at about the distal third, i or 2 teeth on carapace; upper limb very narrow, disappearing anteriorly; lower limb deepest a Httle in front of the eye, and tapering distally, armed with 4 to 6 teeth; extremity acute. A strong antennal, a very small pterygostomian spine. The antennular peduncle reaches about two fifths the length of the antennal scale; second and third segments very short, the second a Httle the longer; the thickened portion of the outer flagellum extends to the terminal third of the antennal scale; the inner flagellum reaches to the end of the scale. The spine at the outer base of the antennules reaches to, or nearly to, the distal margin of the second segment. The o


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