Pomona College, Claremont, California 87 
thick, not as long as second. Third shorter than the first. Flagel- 
lum nearly as long as peduncle, having from 10 to 12 joints. In- 
ferior pair of antenne extending a little past middle of the flagellum 
of superior. 
The first gnathopod attached far forward and small, finger 
slender, three-fourths as long as hand. One spine near the base of 
hand, the finger is finely toothed along the inner margin. 
The second gnathopod is attached to the middle of the body 
segment. The basal joint is short and thick. The finger is three- 
fourths the length of palm and has fine teeth along inner margin. 
The palm is slightly concave, having one large, sharp tooth at the 
base, also a small tooth at distal extremity. 
Third, fourth, and fifth pereopods similar in structure, armed 
with stout hairs; palm slightly concave. 
Length of specimen, 10-12 mm. 
Color, translucent. 
Specimens taken at Laguna Beach by Dr. W. A. Hilton, August, 
1915, from polyzoa at Abalone Point. Type in Pomona College 
collection. 
Dr. Hilton found another lot of specimens of this genus living 
among the hydroids at Balboa Bay. It may be a new species, as it 
differs from any descriptions we have found, but it may simply be a 
variety of Caprella geometrica Say, at least we will not describe it 
further at this time. 
(Contribution from the Zoological Laboratory of Pomona College) 
