94 



RATHBUN 



ened portion of outer flagellum extending nearly half its length beyond 

 the scale. Antennal peduncle just as long as antennular. Half the last 



segment of the maxilliped lies be- 

 yond the scale. The first pair of 

 feet just reach the tip of the scale ; 

 the fingers are unusually short, 

 as above mentioned. No spine 

 on fourth segment of abdomen; 

 sixth segment twice as long as 

 fifth ; telson broken. 



Dwiensions. — Length of ovig- 

 erous female, exclusive of ros- 

 trum and telson, 24.8 mm., length of carapace 7.7 mm. 



Distribution. — Southern CaUfornia, deep water. The type, an ovig- 

 erous female, was dredged oiT Santa Cruz Island, in 266 fathoms {Alba- 

 tross station 2948). A much smaller female comes from off San Diego, 

 417 fathoms {Albatross station 2928). 



Fig. 41. Spirontocaris bracky- 

 dactyla. 9 . Station 2928. a. Side 

 (X 3)- b. Chela of first pair (X s)- 



SPIRONTOCARIS CAMTSCHATICA (Stimpson). 



Hippolyte camtschatica Stimpson, Proc. Acad. Nat. Sci. Phila., xir, p. 33, 

 [102], i860. 



Belongs to the gaimardii group. 



Female. — Rostrum a httle longer than the carapace, shorter than 

 antennal scale, nearly straight (or slightly concave above), horizontal, 

 armed with 4 or 5 teeth above, the ante- 

 rior tooth at about the distal third, i or 

 2 teeth on carapace ; upper limb very 

 narrow, disappearing anteriorly ; lower 

 limb deepest a httle in front of the eye, 

 and tapering distally, armed with 4 to 6 

 teeth ; extremity acute. A strong antennal, a very small pterygostomian 

 spine. 



The antennular peduncle reaches about two fifths the length of the 

 antennal scale ; second and third segments very short, the second a Httle 

 the longer; the thickened portion of the outer flagellum extends to the 

 terminal third of the antennal scale ; the inner flagellum reaches to the 

 end of the scale. The spine at the outer base of the antennules reaches 

 to, or nearly to, the distal margin of the second segment. The outer 

 margin of the antennal scale measures nearly as long as, just as long as, 

 or a little longer than, the carapace ; its spine falls considerably short of 

 the laminar portion ; the peduncle extends to the end of the second 



Fig. 42. Spironiocaris canitschatica. % . 

 Side of carapace (X 2)- Petropavlovsk. 



