1921] Schmitt: The Marine Decapod Crustacea of California 5D 
Dimensions.—Type, ovigerous female: approximate length, 28 mm.; length of 
carapace and rostrum 9.4 mm., of rostrum 4.4 mm. 
Type Locality.—Monterey Bay, California. 
Distribution.—Puget Sound to Lower California, 44 to 77 fathoms (Rathbun). 
Remarks.—This species bears a curious resemblance to S. bispinosa; in general 
terms it is a bispinosa with the slender spine of the rostrum broken off; but a 
closer examination shows other and more radical differences (Rathbun). 
Spirontocaris sica Rathbun 
Spirontocaris sica Rathbun, Proc. U. S. Nat. Mus., 24, 894, 1902; H. A. E., 
10, 69, fig. 25, 1904. 
Fig. 32. Spirontocaris sica, 2, lateral view of carapace, X 134 (from Rathbun, 
Characters.—Near 8S. bispinosa. Posterior median tooth of carapace consider- 
ably in front of middle. Rostrum shorter than in S. bispinosa; upper and lower 
laminae narrower and extending nearer the tip; armed with nine to fourteen teeth 
above (in S. bispinosa ten to twelve), the last two of which are on the carapace; 
below with three to five teeth on the lamina (as in S. bispinosa), but none on the 
slender terminal portion. First three abdominal segments laterally rounded. 
Dactyls of ambulatory legs about one-third as long as their propodi. 
Dimensions.—Type, female: length 58 mm.; length of carapace and rostrum 
24.8 mm., of rostrum 12.8 mm. 
Type Locality—Santa Barbara Channel, 265 fathoms (‘‘ Albatross’’ station 
3200). 
Distribution.—Off the coast of California, from Point Arena to San Diego, 
211 to 464 fathoms (Rathbun). 
III. Group with one supraorbital spine. 
Spirontocaris washingtoniana Rathbun 
Spirontocaris washingtoniana Rathbun, Proc. U. 8. Nat. Mus., 24, 895, 
1902; H. A. E., 10, 76, fig. 30, 1904. 
Fig. 33. Spirontocaris washingtoniana, 9, lateral view of carapace, X 24s, 
(from Rathbun, U. 8. N. M.). 
