DECAPODS 



143 



Distribution. Bering Sea and Aleutian Islands, u}4 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. Corwiri), one specimen; 

 Bering Island, some specimens taken from the stomach of Gadus macro- 

 cephalus (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 JV. crassa; the carinae 

 of the fifth and sixth segments are less 

 clearly marked than in N. crassa. 



/ . FIG. 86. Nectocrangon levior. 9 (X 



Dimensions. Female, length 47.7 mm., T 3>- Station 2865. a. Dorsal view of 



' carapace and abdomen, b. Side view. 



length of carapace 13.1 mm. 



Distribution. This species is more rare than N. 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 

 tc- Portlock Bank, 68 fathoms, station 2856. Six females and 

 . one ma i e come f rom Davidson Bank, south of the Aleutian 

 Islands > 42 fathoms, station 2845. One or two specimens 

 wer e 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. xxxni, fig. 6, 1855. 

 HOLMES, Occas. Papers Calif. Acad. Sci., VII, 176, pi. II, figs. 36 and 

 37, 1900, and synonymy. 



Carapace furnished with a median carina unequally four-toothed. 

 Rostrum long, obliquely erect ; posterior margin with one tooth near the 



Chela. 



