I 921 ] Sehmitt: The Marine Decapod Crustacea, of California 63 



Spirontocaris kincaidi Kathbun 



Spirontocaris kincaidi Rathbun, Proc. U. S. Nat. Mus., 24, 899, 1902; 

 H. A. E., 10, 95, fig. 43, 1904. 



Fig. 40. Spirontocaris Jcincaidi, J, lateral view, X Z 1 /* (from Rathbun, U. S. 

 N. M.). 



Characters. — Carapace short in relation to the abdomen. Rostrum one-third 

 longer than the carapace, not reaching tip of antennal scale, slightly concave 

 above, horizontal; armed above with five, occasionally six teeth, two of which 

 are on the carapace, anterior dorsal tooth a little in front of the middle of the 

 rostrum; tip acute; lower limb tapering from a point in front of the eye to the 

 tip, armed with five teeth, one subterminal. Basal spine of the antennules reach- 

 ing distal margin of the second segment of the peduncle. Posterior margin of 

 the third abdominal segment is produced backward into a pronounced lobe; the 

 abdomen is strongly bent at this point ; the fourth segment is spineless ; the sixth 

 is barely twice as long as wide or high, and a little shorter than the telson. 



Dimensions. — Type, ovigerous female: approximate length 36.5 mm., length 

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



Type Locality. — Off Santa Cruz, California, 21 fathoms ("Albatross" station 

 3124). 



Distribution. — Puget Sound to San Pedro, California, 21 to 100 fathoms. 



Spirontocaris layi (Owen) 



Hippolyte layi Owen, in Zoology of Captain Beechey's Voyage (in the 

 "Blossom"), Crustacea, p. 90, pi. 27, fig. 3, 1839; Bate in Lord's 

 Naturalist in British Columbia, 2, 279, 1866; Loekington, Bull. Essex 

 Inst., 10, 161, 1878. 



Spirontocaris layi Rathbun, H. A. E., 10, 96, 1904. 



Fig. 41. Spirontocaris layi, lateral view of anterior portion (after Owen). 



