DECAPODS ;i 



segment of the peduncle ; the eye extends to the second segment, which, 

 as well as the third, is very short. The antennal peduncle falls short of 

 the middle of the scale ; scale short and broad, subequal in length to the 

 rostrum. 



The maxillipeds exceed the antennal scale a little. The palm of the 

 first pair of feet overlaps the last segment of the maxillipeds. The last 

 three pairs of feet are rather stout, and the last pair exceeds the antennal 

 peduncle a little. 



Abdomen conspicuously punctate. 



Male. The rostrum is horizontal or deflexed, and very slender, and 

 the spines are small and appressed. Peduncles of antennulae more 

 elongate than in the ? , eyes not reaching end of first segment, basal 

 scale extending to middle of second segment. 



Dimensions. Ovigerous $ : length (approximate) 37.5 mm., length 

 of carapace and rostrum 13 mm., of rostrum 5.3 mm. 



Distribution. Arctic Alaska to the Shumagins; 6-72 fathoms. Cir- 

 cumpolar. Atlantic coast of America southward to Cape Cod; 8-125 

 fathoms. Northern Europe. 



In the collections of the U. S. National Museum are specimens ob- 

 tained by Dr. W. H. Dall at various localities along the Aleutian Islands 

 eastward to the Shumagins, in 6-30 fathoms; in Bering Strait, 13-17 

 fathoms; and in Plover Bay, Siberia, 10-25 fathoms. 



Taken by the Albatross at the following stations : 

 Pumicestone Bay, 35 fathoms, station 3322. 

 Off North Head, Akutan Island, 72 fathoms, station 2842. 

 Unimak Pass, 34 fathoms, station 3220. 

 North of Bird Island, Shumagins, 21 fathoms, station 2850. 

 10 miles west of Point Franklin, Alaska, 13^3 fathoms (Point Barrow 



Expedition). 

 Lat. 71 02' oo" N., long. 1570 46' oo" W., 19 fathoms (U. S. R. S. 



Corwiri). 

 Off Point Hope, Alaska, 25 fathoms (U. S. R. S. Corwin). 



SPIRONTOCARIS OCHOTENSIS (Brandt). 



Hippolyte ochotensis BRANDT, Middendorff's Reise Sibir., Band II, Zool., 

 Theil i, Krebse, p. 120, pi. V, fig. 17, 1851. 



Dorsal crest arising at about the middle of the carapace; 3 large 

 spines on the carapace. Rostrum reaching to end of antennular 

 peduncle ; midrib ascending in its terminal portion ; upper lamina con- 

 vex above, tapering forward and backward, armed with about 6 or 7 

 small spines distant from those on the carapace ; tip usually bifid ; lower 

 lamina deep, subtriangular, armed with 4 or 5 small spines on the anterior 



