324 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 18 



Uropod 3: rami rather stout, article 2 of outer ramus minute. 

 Female: inner ramus about two thirds as long as outer, setae 



sparse. 

 Immature male: inner ramus slightly longer than outer, setae 



sparse. 

 Male: inner ramus slightly longer than outer, setae numerous. 



Telson split about half its length, lobes diverging, bluntly rounded, 

 each with an apical spine. 



Epimera of pleon segment 3 with lower edge often undulating or 

 sigmoid. 



Holotypes examined. — Harpinia affinis Holmes 1908. USNM No. 

 38549, Sta. 4554, U. S. Fish Comm., Monterey Bay, Calif., 60-80 

 fms, June 9, 1904, female, 9 mm. This is a badly mutilated specimen 

 in two parts in alcohol and 3 type slides. The head is extant but its 

 internal anatomy has been disturbed so that the eyes apparently have 

 been destroyed. The maxilliped is typical of H. pennatus as figured by 

 Shoemaker 1925 but the other mouthparts are absent. Antenna 2 has 

 the large ensiform process; all other charatcers fall within the range of 

 H. pennatus except the fourth peraeopod which has a protrusion on the 

 posterior edge of article 2 as was figured by Holmes. This minor differ- 

 ence has no taxonomic value. 



Harpinia oculata Holmes 1908. USNM No. 38548, Sta. 4342, 

 U. S. Fish Comm., off S. Coronado Island (Mexico), 53-66 fms, Mar. 

 11, 1904, female, 8 mm. This specimen is in good condition except that 

 the mouthparts have been removed and placed on 3 type slides. It is a 

 typical H. pennatus in all respects, except that the right first gnathopod 

 has assumed a regenerating phase, having the dactylus quite thick and 

 short and not reaching to the end of the transverse palm. I have chosen 

 the name oculatus as the senior synonym, although "affinis" was also 

 available, on the basis of page priority in Holmes 1908, the better 

 condition of the holotype, and the appropriate name, "oculatus." 



Material examined. — 2428 specimens at 298 stations. 



Distribution. — Puget Sound to Panama. At Bahia Honda, Panama, 

 it was collected in 5-8 fms. On the southern California shelf and slopes 

 it is rarely collected as shallow as 10 fms, but is abundant between 24 

 and 400 fms, with most of the records between 50 and 200 fms. It 

 has also been collected in the following basins: San Pedro Basin, 230 

 to 440 fms; Santa Catalina Basin, 587 to 620 fms; Santa Cruz Basin, 

 250 to 1049 fms. 



