Studies in Laguna Aniphipoda. 653 



This species differs from L. Jiirsutipes in liaving pereiopod 5 

 greatly elongate; antenna 1 and 2 with niore joints in fiagella; telson 

 with concave apex. Occasional in kelp lioldfasts from deep water. 

 Lamuna Beach, Calif. 



Genus Xeophotis n» </. 



Bodj' slender. Side-plates irregulär and not contiguous; the 

 üfth not as deep as the third and fourth. Antenna 1 with the flrst 

 Joint of the peduncle longer than the third; accessory flagellum 

 1-jointed. Both antennae long and not differing greatly in length. 

 Upper lip rounded, slightly insinuate. Lower lip with both plates 

 well developed. Maxiila 1, inner plate armed with several very fiue 

 setae; outer plate with ten spines. Maxiila 2, inner plate fringed 

 Along inner margin. Maxillipeds with elongate slender palp. Gnatho- 

 pod 1 small and slender, the fifth Joint longer than the sixth. 

 Gnathopod 2 similar in both sexes ; much larger than 1 ; sixth Joint 

 larger than the flfth. Pereiopods 1 and 2 with the second and 

 fourth joints swelled. Pereiopods 3—5 successively larger, the third 

 very small. Uropod 3 the shortest; rami slightly unequal, setose. 

 Telson rectaugular, slightly em argin ate. 



This genus appears to be nearest the genus Eurijstheus, but 

 diifers from it in the irregulär side-plates; the fifth side-plate without 

 deep front lobe; the third Joint of antenna 1 not elongate; the 

 accessory flagellum of but one Joint. 



NeophoUs inaequalis n. sp, 



Body slender, strongly flexed. Head not rostrate; side-lobes 

 rounded and produced between the antennae. Eyes lateral, of moder- 

 ate size, and irregulär in shape, located back and slightly above 

 the side-lobes. Side-plates shallow, irregulär, and not contiguous; 

 side-plate 1 produced forward and rounded below; side-plate 2 deeper 

 than the following, produced to a point at the distal, front margin 

 with a Single seta at the apex ; side-plates 3 and 4 much shallower, 

 triangulär in shape; side-plate 5 still shallower but not narrowed 

 ■distally. Antenna 1 somewhat longer than 2; the peduncle longer 

 than the 9— 10-jointed flagellum; the second Joint of the peduncle 

 «lightly longer than the first, the first longer than the third ; acces- 

 sory flagellum 1-jointed. Antenna 2 with the ultimate and penul- 

 timate joints of the peduncle nearly equal; the peduncle longer than 



