1921] Schmitt: The Marine Decapod Crustacea of California 67 



Characters. — Antennal scale about the same length or shorter than the telson; 

 antennal peduncle reaching about two-thirds the length of the scale. Eostrum 

 reaching cornea or beyond, but not exceeding first segment of antennular peduncle ; 

 armed above with five or six teeth, the last three or four of which are on the 

 carapace; below without teeth; tip of rostrum simple, very exceptionally bifid. 



Dimensions. — Types: length of body 31.8 to 38 mm. 



Color. — Uniform light crimson or scarlet (Stimpson). 



Type Locality. — Dungeness, Straits of Fuca. 



Distribution. — Attu, Aleutian Islands, to San Francisco Bay, California (Bath- 

 bun). 



Remarks. — I have examined a series of about seventy specimens of this species 

 and find that practically all have the antennal scale about as long as the telson; 

 ten had the antennal scale shorter than the telson. In all but one the tip of 

 the rostrum ended simply ; in this single exception it was clearly bifid, owing to 

 the fact that the first rostral spine was situated immediately above the acute tip. 



Biological Survey of San Francisco Bay. — Only two specimens of 

 Spirontocaris brevirostris were taken in the bay; one along the south- 

 ern shore of Golden Gate in 2y± to 3V& fathoms, in company with S. 

 taylori at D 5778, and one near the head of Raccoon Strait in 13 to 

 19 fathoms at D 5795. The bottom in both cases was more or less' 

 rocky, characterized by considerable algal growth in the case of the 

 former. 



Spirontocaris taylori (Stimpson) 



Hippolyte taylori Stimpson, Jour. Boston Soe. Nat. Hist., 6, 500, 1857. 

 Heptacarpus taylori Holmes, Occas. Papers Calif. Acad. Sci., 7, 199, pi. 3, 



figs. 52, 53, 1900. 

 Spirontocaris taylori Eathbun, H. A. E., 10, 101, 1904. 



Fig. 45. Spirontocaris taylori; a, lateral view of carapace; b, aeicle (after 

 Holmes). 



Characters. — Eostrum very short, not reaching even to the cornea, extending 

 very little beyond the anterior margin of the carapace, armed above with five or 

 six teeth, the last three or four situated on the carapace; anteriorly the teeth 

 become more inclined forward, the end of the rostrum appearing curved down- 

 ward although the lower margin is horizontal; unarmed below. Antennal scale 

 about as long as telson. 



Dimensions. — The Biological Survey specimens listed below ranged between 

 11 and 28 mm. in length, from tip of rostrum to end of telson. 



Type Locality. — Monterey, California. 



