g6 RATHBUN 



group, tapering from a point in front of the eye to the tip, armed with 

 5 teeth, one subterminal. Antennal spine strong, pterygostomian very 

 small. 



Antennular peduncle reaching about two fifths the length of the 

 antennal scale, second and third segments very short and subequal, outer 

 scale reaching distal 

 margin of second seg- 

 ment, outer flagellum 

 falling short of the tip 

 of antennal scale, inner 

 flagellum exceeding it. 



Antennal peduncle al- Fig. 43. spirontocarh kincaidi. 



'■ Station 3124. 



most as long as anten- 

 nular ; scale tapering, measured on outer margin exceeding 

 the carapace; its spine long, but still not so advanced as 

 the blade. Outer maxilhpeds not quite reaching tip of ros- 

 trum ; first pair of feet to middle of antennal scale ; second pair ex- 

 tending just beyond maxilliped. 



The posterior margin of the third abdominal segment is produced 

 backward in a strong lobe; the abdomen is strongly bent at this point; 

 the fourth segment is spineless; the sixth is less than twice as long as 

 the fifth, and a little shorter than the telson, which is armed with four 

 pairs of lateral spines. 



Dimensions. — Ovigerous ?, length (approximate) 36.5 mm., length 

 of carapace and rostrum 13.6 mm., of rostrum 7.7 mm. 



Distribution. — From Washington to Santa Cruz, California: 



Puget Sound (T. Kincaid). 



Off Flattery Rocks, Washington, 40 fathoms [Albatross station 2873), i ? . 



Off Santa Cruz, California, 21 fathoms [Albatross station 3124), i $ (type). 



Strait of Fuca, 37 fathoms [Albatross station 3593), i egg-bearing $ , 

 placed here with doubt. The rostrum and telson are broken, the 

 antennulae are a little longer than in the type, their peduncles reach 

 nearly to the middle of the acicle. 



SPIRONTOCARIS LAYI (Owen). 



Hippolite Layi Owen, in Zoology of Captain Beechey's Voyage [in the Blos- 

 som], Crustacea, p. 90, pi. xxvil, fig. 3, 1839. 



Distribution. — Monterey, Cahfomia (Owen) ; Esquimalt Harbor, 

 Vancouver Island (Bate). 



Owen's description is as follows : 



" Hip. rostro acuminato, supra multi-serrato, ante medium subtus 

 quadri-serrato. Long. corp. unc. 2^^. Color ruber." According to 



