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 antennae extending a little past midcile 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 perjtopods 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 founci 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 geoniclrica Say, at least we will not describe it 

 further at this time. 



(Contribution from the Zoological Laboratory of Pomona College) 



