. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. 138 RATHBUN more transverse, making the palm appear longer. The abdominal carinae are higher and thinner, especially on the third segment; the in- fero-posterior angle of the fourth segment may have a small spine. The abdomen is more elongate, notably the sixth segment. Dimensions.—' male, length mm., length of carapace mm. Distribution.—hxz\\c coast of Alaska and Siberia southward to Sitka and Kurile Islands; Greenland (Kroyer). Beach to 47 fathoms. In the U. S. National Museum this species is represented by
. Alaska. Natural history -- Alaska; Scientific expeditions; Alaska. 138 RATHBUN more transverse, making the palm appear longer. The abdominal carinae are higher and thinner, especially on the third segment; the in- fero-posterior angle of the fourth segment may have a small spine. The abdomen is more elongate, notably the sixth segment. Dimensions.—' male, length mm., length of carapace mm. Distribution.—hxz\\c coast of Alaska and Siberia southward to Sitka and Kurile Islands; Greenland (Kroyer). Beach to 47 fathoms. In the U. S. National Museum this species is represented by numer- ous specimens ranging from the Arctic coast of Alaska and Siberia south- ward via Bering Strait to Bering Sea, lat. 56° 12' 00" N. Within these limits it is very abundant and was taken at 21 stations of the Albatross^ at 8 stations by Lieutenant G. M. Stoney, U. S. N., at 7 stations by W. H. Dall, at 2 stations by the U. S. R. S. Corwin, oflf the mouth of the Yukon by E. W. Nelson, and at Cape Smith by the Point Barrow Expedition. Also taken at the following localities: Shahafka Cove, Kadiak, 12-14 fathoms (W. H. Dall). Sitka Harbor, 15 fathoms (W. H. Dall). Avacha Bay, Kamchatka (L. Stejneger and Albatross; also recorded by Stimpson). Rakovaya Bay, Avacha Bay [Albatross). Off Kamchatka, 12-13 fathoms {Albatross stations 3776, 3777, 3779} 3780). Off Iturup Island, Kurile Islands, 14-18 fathoms {Albatross stations 3652, 3653). Off Robben Island, Okhotsk Sea, 18-20 fathoms, stations 3646, 3647. NECTOCRANGON DENTATA Rathbun. Nectocrangon lar Smith, Trans. Conn. Acad. Arts Sci,, v, 61, 1879 (part); not A^. /ar(Owen).—Rathbun, The Fur Seals and Fur-Seal Islands of the North Pacific Ocean, Pt. ill, 556, 1899 (part).—Holmes, Occas. Papers Calif. Acad. Sci., vil, 178, 1900 (part).—Ortmann, Proc. Acad. Nat. Sci. Phila., 1901, 164 (part). Nectocrangon dentata Rathbun, Proc. U. S. Nat. Mas., xxiv, 892, Fig. 76. Nectocrangon dentata. 9 (X ij)- Station 3216. a.
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