48 University of California Publications in Zoology (Vou. 23 
Hippolyte californiensis Holmes 
Hippolyte californiensis Holmes, Proc. Calif. Acad. Sci., (2), 4, 576, figs. 
21-26, 1895; Occas. Papers Calif. Acad. Sci., 7, 193, 1900; Rathbun, 
H. A. E., 10, 56, 1904. 
( 
Fig. 26. Hippolyte californiensis; a, mandible; b, lateral view of carapace 
(from Holmes) ; ¢, lateral view of carapace, X 8, showing arrangement of rostral 
spines most commonly met with. 
Characters.—Rostrum slender, a little longer than the carapace, armed both 
above and below with three to five, exceptionally six teeth; anterior tooth of each 
series usually situated immediately behind the acuminate tip, giving it a more or 
less trifid appearance; remaining teeth of upper series usually more or less 
bunched over the eye and confined to the basal half of the rostrum; base of 
rostrum rounded and not continued upon the carapace. Antennular peduncle 
about one-half as long as rostrum. Abdomen not crested or carinated; telson 
truncated and spinulous at the tip. 
Dimensions.—Type: length 38 mm. 
Color.—Green (Holmes). 
Type Locality.—Bodega Bay, California. 
Distribution.—F rom Sitka, Alaska, to San Diego, California (Rathbun). 
Kemarks.—‘Tn a lot of eleven specimens from Puget Sound, the dorsal teeth 
are usually two, in one case three, on the basal half of the rostrum, and one or 
none near the tip. In a few individuals from San Diego the rostral teeth are 
typical’’? (Rathbun). In another lot of over fifty specimens received from the 
Venice Marine Biological Station, Venice, California, there is only one ‘‘typical’’ 
specimen. The rostrum figured by Holmes as the type seems to be a comparatively 
rare variation in the arrangement of the dorsal spines. With but three exceptions 
the rostral extremity of the Venice specimens is trifid; the exceptional specimens 
have a bifid rostrum. 
