. Alaska ... Natural history; Scientific expeditions. DECAPODS 143 Distribution.—"Btring S)t& and Aleutian Islands, 11^ to 55 fathoms at 24 stations of the Albatross; Aleutian Islands to Sitka, 5 to 28 fathoms, at 10 localities (W. H. Dall); Alaska (U. S. R. S. Corwin), one specimen ; Bering Island, some specimens taken from the stomach of Gadus macro- cephahis (N. Grebnitzky). NECTOCRANGON LEVIOR Rathbun. Nectocrangon levior Rathbun, Proc, U. S. Nat. Mus., xxiv, 892, 1902. This species is very close to N. crassa. The first four abdominal seg- ments are non-carinate, except for a shor
. Alaska ... Natural history; Scientific expeditions. DECAPODS 143 Distribution.—"Btring S)t& and Aleutian Islands, 11^ to 55 fathoms at 24 stations of the Albatross; Aleutian Islands to Sitka, 5 to 28 fathoms, at 10 localities (W. H. Dall); Alaska (U. S. R. S. Corwin), one specimen ; Bering Island, some specimens taken from the stomach of Gadus macro- cephahis (N. Grebnitzky). NECTOCRANGON LEVIOR Rathbun. Nectocrangon levior Rathbun, Proc, U. S. Nat. Mus., xxiv, 892, 1902. This species is very close to N. crassa. The first four abdominal seg- ments are non-carinate, except for a short feeble elevation on the first; the first segment has a median tubercle; and the pleura of all the segments have shallow depressions suggestive of the sculpturing of N. crassa; the carinas of the fifth and sixth segments are less clearly marked than in N. crassa. Fig. 86. Nectocrangon levior. ? (X Dimensions.—Female, length mm., ^5>- station 2865. a. Dorsal view of ° ' ' ' carapace and abdomen, b. Side view. length of carapace mm. Distribution.—Thi?, species is more rare than iV! crassa and extends farther south. One female was taken in Admiralty Inlet, Puget Sound, 40 fathoms, station 2865, by the Albatross, and serves as the type. Another female was dredged off Cape Beale, Vancou- ver Island, in 34 fathoms, station 2880. One female from Fig. 87. Nee Po^tlock Bank, 68 fathoms, station 2856. Six females and iocrangott^ievi. one male come from Davidson Bank, south of the Aleutian f'''Ac'icie''^^l" ^s^^"^s, 42 fathoms, station 2845. 0"^ or two specimens Chela. were taken by Dr. Dall at each of the following localities: Port Levashef, Unalaska, 20-30 fathoms. Semidi Islands, 12-28 fathoms. West side Middleton Island, 10-12 fathoms. Genus Paracrangon Dana. PARACRANGON ECHINATA Dana. Paracrangon echinatus Dana, Proc. Acad. Nat. Sci. Phila., 1852, p. 20; Crust. U. S. Expl. Exped., I, p. 538, 1852, pi. xxxiil, fig. 6, 1855. —Holmes, Occas. Papers
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