PART 1 GARTH : PACIFIC OXYRHYNCHA 105 



Type locality: Bay of San Diego, California, 7 fathoms, Henry 

 Hemphill, collector. 



Localities subsequently reported, with collectors: California: Monte- 

 rey Bay (Weymouth) ; San Luis Obispo (Lockington) ; off Venice, 

 Santa Monica Bay, and Isthmus Harbor, Santa Catalina Island, Anton 

 Dohrn (Rathbun, 1925) ; Catalina Harbor, Santa Catalina Island, W. 

 H. Dall (Rathbun, 1893b: type of Podochela tenuipes) ; Laguna Beach 

 (Nininger), 12-15 fathoms, W. A. Hilton (Rathbun, 1925); San 

 Diego Bay, 1-2 fathoms, Scripps Institution (Rathbun, 1925) ; Mexico: 

 west coast of Lower California: off Cedros Island, off Santa Margarita 

 Island, Magdalena Bay, off Point Marque [Marquis], and Cape San 

 Lucas, 10-47 fathoms, Albatross (Rathbun, 1893b, 1898, 1925) ; Gulf 

 of California: La Paz, San Jose Island, Amortiguado Bay, Puerto 

 Escondido, and Mulege Bay, W. J. Fisher (Lockington) ; San Esteban 

 Island, American Museum (Rathbun, 1923b) ; off Cape San Miguel, 45 

 fathoms, Lt. H. E. Nichols, U.S.N. (Rathbun, 1925) ; Arena Bank, 

 0.5 to 50 fathoms, Zaca (Crane). 



Atlantic analogue: Podochela gracilipes Stimpson. 



Diagnosis: Rostrum long, ending in a spine. A minute postorbital 



granule. First ambulatory leg two and one-half times total length of 



carapace, propodus unarmed. Only one tubercle on first abdominal 



segment. Propodi of all walking legs bent slightly forward. Dactylus of 



fourth leg five-eighths times length of its propodus. Fingers of male 



cheliped gape in a broad oval. Curved hair count 10-12 along propodus 



of first leg. 



Description: Carapace pyriform; gastric region prominent, rounded, 



and bearing tufts of curved setae; hepatic regions tumid, bearing two 

 pointed tubercles, the larger one above and in front of the smaller; 

 cardiac region separated by shallow grooves from the branchial and 

 bearing a prominent elevation; branchial regions flattened or tumid. 

 Rostrum variable in length, sometimes broadly, sometimes narrowly 

 triangular, acute, and bearing two double rows of curved setae above. 

 No supraocular tooth or spine; the area between the two projecting 

 rims of the orbits concave ; no tooth at the posterior margin of the orbit, 

 but sometimes a small one a short distance behind it. Eyestalks con- 

 stricted at the middle and bearing a few setae at the subacute tip. Basal 

 antennal [article] with a longitudinal ridge on its posterior half or two- 

 thirds with a groove on either side. Ischium of maxillipeds with a 

 shallow, longitudinal groove ; merus narrower than ischium, the internal 

 angle produced, and the surface strongly concave from side to side. 



