184 Universitij of California Puhlications in Zoology IToi- 13 



Collected from San Pedro and also in the followinfr hauls : VIII. 

 along shore in the mud near the Southern Pacific Railroad bridge in 

 the inner San Pedro Harbor; XLIII-1, in San Diego Bay in 3 to 7 

 fathoms on soft black mud; LXXIX-1, off San Diego in 63 to 6o 

 fathoms on green mud and broken shells. 



Sthenelais verruculosa Johnson 



Sthenelasi rerruculosa Johnson (1897), p. 187, jA. 9, figs. 62, 62a; lA. 10, 

 figs. 65, 65a-f7. 



Collected off AVhite's Point, San Pedro (type specimen) ; and San 



Diego. 



Sthenelanella uniformis Moore 



Sthenelanella uniformis Moore (1910), p. 391, pi. 33, figs. 10.5-112. 



These showed on posterior somites a tuft of long delicate capillary 

 setae arising from the neuropodium, a structure not mentioned in 

 Moore's description. 



Collected in haul X, off San Pedro in 19 to 38 fathoms on green 

 mud. 



Panthalis pacifica sp. no v. 



PI. 11, figs. 1-7 



The head (pi. 11, fig. 1) has its greatest transverse diameter about 

 equal to its anterio-posterior diameter measured to the base of the 

 ommatophores. Its basal portion is rather narrow, swelling abruptly 

 on either side and then gradually narrowing to the bases of the omma- 

 tophores. These are provided with very large eyes, which occupy 

 more than half their length, while a second pair of much smaller eyes 

 lies .just posterior to the bases of the ommatophores. The head is 

 divided longitudinally by a shallow median groove and, at about its 

 center, a median tentacle arises from a verj^ short ceratophore. The 

 median tentacle is rather slender and gradually tapers to an acute 

 tip, its apex extending beyond the eyes. The ventral tentacles, like 

 the median one in size and form, arise close together on the ventral 

 surface of the head. The palps are long and each tapers uniformly 

 to an acute tip. The tentacular cirri are larger than the antennae. 

 "While, in preserved material, the surface of the head is light brown in 

 color, all its appendages are colorless. 



All elytra are very delicate, with entire margins. The anterior 

 two or three pairs cover the entire dorsal surface of the body. Then, 



