DECAPODS 105 



Iliuliuk Harbor, Unalaska, 58-68 fathoms, stations 3310, 3313. 



Off Akutan Island, 72-91 fathoms, stations 2842, 3548. 



Northwest of Unimak Island, 81-85 fathoms, stations 3225, 3257. 



Off Kudobin Islands, 41 fathoms, station 3279. 



Between Unga and Nagai Islands, Shumagins, no fathoms, station 



2848. 



Off the Trinity Islands, 159 fathoms, station 2853. 

 Gulf of Georgia, British Columbia, 67 fathoms, station 2863. 

 Strait of Fuca, 53-100 fathoms, stations 3443, 3445, 3446, 3460, 3596, 



3597- 



Near Flattery Rocks, Washington, 171 fathoms, station 2866. 

 Off Heceta Bank, Oregon, 277 fathoms, station 2890. 



SPIRONTOCARIS MACILENTA (Kroyer). 



Hippolyte macilenta KROYER, Naturh. Tidssk., Ill, 574, 1841; K. Danske 

 Vidensk. Selsk., Afh., ix, 305, pi. II, figs. 55, 56, 1842. SMITH, Trans. 

 Conn. Acad. Arts Sci., v, 71, 1879. 



Spirontocaris macilenta RATHBUN, The Fur Seals and Fur-Seal Islands of 

 the North Pacific Ocean, Pt. in, 557, 1899. 



Distribution. Arctic and Atlantic coasts of North America, as far 

 south as Halifax, Nova Scotia; Bering Sea; Kamchatka; Okhotsk 

 Sea; 16 to 100 fathoms. 



The following localities on the Alaskan and Asiatic coasts are repre- 

 sented in the Museum collection : 



Arctic Ocean (U. S. R. S. Corwiri). 



Bering Strait (Dr. Robert White). 



Lat. 66 30' 25" to 66 43' oo" N., long. 167 14' 10" to 168 08' 15" 



W., 19-30 fathoms (U. S. R. S. Corwin}. 

 Bering Sea, between Matthew Island, Pribilof Islands, and Bristol Bay ; 



29)4-39 fathoms (Albatross stations 3252, 3306, 3507, 3511, 3513, 



35i8, 3519). 



Off Kamchatka, 39-42 fathoms (Albatross station 3781). 

 Avacha Bay, Kamchatka, 16 fathoms (Albatross station 3642). 

 Southeast coast of Kamchatka, 100 and 96 fathoms (Albatross stations 



3643* 3 6 44)- 

 Off Robben Island, Okhotsk Sea, 25 fathoms (Albatross station 3649). 



SPIRONTOCARIS MACROPHTHALMA Rathbun. 



Spirontocaris macrophthalma RATHBUN, Proc. U. S. Nat. Mus., XXIV, 

 900, 1902. 



Allied to S. macilenta and S. bispinosa. 



Female. Carapace carinated in its anterior half, posterior spine at the 

 anterior fifth ; upper line of carapace and midrib of rostrum nearly hori- 

 zontal, the rostrum gently ascending in its anterior portion; rostrum 

 about three fourths or five sixths as long as the carapace, upper and 

 lower limbs with convex margins, and widest at about the middle of their 



