DECAPODS 



127 



Bering Sea, southwest of Pribilof Islands, 1625 fathoms, station 3308. 



Bering Sea, north of Rat Islands, 850 fathoms, station 3784. 



Bering Sea, north of Unalaska, 987 fathoms, station 3607. 



East of Prince of Wales Island, Alaska, 1569 fathoms, station 2859. 



North of Islands of Four Mountains, Alaska, 1033 fathoms, station 3307. 



Off Queen Charlotte Islands, British Columbia, 876 and 1588 fathoms, 



stations 2860, 3342. 

 Off Sea Lion Rock, Washington, 685 to 877 fathoms, stations 3069, 



307i» 3074. 3075- 

 Off Cape Elizabeth, Washington, 831 fathoms, station 3344. 

 Off Tillamook Bay, Oregon, 786 fathoms, station 3346. 

 Off Cortez Bank, Cahfornia, 984 fathoms, station 2919. 



This species in general appearance much resembles a Pontophilus. 



CRANGON MUNITA Dana. 



Crangon munitus Dana, Crust. U. S. Expl. Exped., i, 536, 1852; pi. 

 XXXIII, fig. 5, 1855. 



Female. — Body short and thick. Carapace less than two fifths the 

 length of the abdomen ; the anterior and middle portion of the carapace 

 is depressed and pubescent ; this depressed area is defined by a curved 

 line extending backward from the antero-lateral angle nearly to the pos- 

 terior margin on the median line, and is crossed in part by nine carinas. 

 The median carina is the length of the depression and is armed with two 

 spines, one at two fifths 

 the distance from the 

 posterior margin, the 

 other at an equal dis- 

 tance from the first. First 

 lateral carina short, ter- 

 minating in a spine half 

 way between the two 

 median spines. Second 



Fig. 67. Crangon ntunita. t> (X z)- Station 2881. a. Dorsal 

 view of carapace and abdomen, b. Side view of carapace. 



lateral carina as long as the dorsal depression, and unarmed except for the 

 spine at the anterior end, which marks the outer angle of the orbit. Third 

 lateral carina short, terminating in a spine half way between the superior 

 lateral spine and the anterior median spine. Fourth lateral carina form- 

 ing the boundary of the depression and terminating in a spine at the 

 antero-lateral angle of the carapace. Rostrum short, reaching to a 

 line between the tips of the orbital and the antero-lateral spines ; nearly 

 horizontal, medially sulcate, tip rounded. 



The scale at the base of the antennules is broad, has a straight outer 

 margin, and is tipped with a small spine. The first and second segments 

 of the peduncle have a blunt spine at the outer distal angle, that on the 



