160 
Hippolyte taylori Stimpson, Jour. Bost. Soc. Nat. Hist., vi, p. 500 
ext. p. 60), 1857. 
Three or four specimens from Magdalena Bay (Fisher) evidently 
belong to this species, having the peculiar rostrum with the second 
and third spines almost above the terminal one. The stout first pair 
of feet, and the second pair reaching to the tips of the maxillipeds, as 
described by Stimpson. Length of largest specimen 1,/5 inches. 
Hippolyte palpator Owen, Zoology of the Voyage of the Blossom 
(Capt. Beechey), Crustacea, p. 89, pl. xxviii, f 38,1839. Stimpson, 
Proc. Cal. Acad., I, p. 89 (1856). Jbid, Jour. Bost. Soc., VI, p. 
499 (1857). 
H. brevirostris of Dana (U. S. Expl. Ex. Crust., I, p. 566, pl. xxxvi, 
f.5) is not improbably a variety of this species (vid Stimpson, 1. ¢., 
p. 500). A single specimen from the bay of San Francisco in the 
Museum of the California Academy has but one tooth on the under 
side of the rostrum near the extremity, which is bifid and furnished 
with six teeth above. The maxillipeds are very long, about half as 
long as the entire body, and are spinulose internally at their tips. 
The basal joint of antennule has a spine, longer than the rostrum, at 
its base. The next joint has a smaller lateral spine and there is a 
sharp spine on the last joint of the peduncle, immediately over the 
centre of the third flagellum. The telson has two rows of fine, short, 
sharp spines, and two larger spines on the posterior margin. The 
penultimate abdominal segment has two teeth on each side of the 
posterior margin and the epimera of the two preceding segments are 
prolonged backward into a spine. 
The chief difference between this and Owen’s description of JZ. pal- 
pator is in the number of rostral teeth, but as these are variable in 
this genus I hesitate to describe it as new, preferring to refer it to 
one of the above forms. 
Several specimens from Magdalena Bay agree with HH. palpator in 
the length of external maxillipeds, but have the rostrum with four 
teeth above. H. palpator was found at Monterey by Capt. Beechey, 
in the Straits of De Fuca by the Exploring Expedition, and in San 
Francisco Bay (Stimpson). 
Hippolyte hemphillti, described by myself (Proc. Cal. Acad., vii, p. 
35 (1876) ) from an imperfect dried specimen, is probably only a vari- 
ety of the above species with an extremely short rostrum. This 
variety has been found at Magdalena Bay and San Diego. The ros- 
trum is equal in length to the eyes; the terminal tooth is simple, the 
next smaller and considerably behind the terminal one. 
