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. Rostrum 
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 Fuea. - 
Distribution.—Attu, Aleutian Islands, to San Francisco Bay, California (Rath- 
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 214 to 314 fathoms, in company with S. 
taylort at D 5778, and one near the head of Raccoon Strait in 18 to 
19 fathoms at D 5795. The bottom in both cases was more or less 
rocky, characterized by considerable algal growth in the ease of the 
former. 
Spirontocaris taylori (Stimpson) 
Hippolyte taylori Stimpson, Jour. Boston Soc. Nat. Hist., 6, 500,°1857. 
Heptacarpus taylori Holmes, Occas. Papers Calif. Acad. Sci., 7, 199, pl. 3, 
figs. 52, 53, 1900. 
Spirontocaris taylori Rathbun, H. A. E., 10, 101, 1904. 
L/ 
a b 
Fig. 45. Spirontocaris taylori; a, lateral view of carapace; b, acicle (after 
Holmes). 
Characters.—Rostrum 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. 
