COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 155 



Range: Bahia de Santa Maria, Baja California; Isla Isabel; Cabo 

 San Lucas at the mouth of the Gulf of California south to Puerto 

 Utria, Colombia. Shore to 4 fathoms. 



Pachycheles panamensis Faxon 

 Plate 33, fig. 1 



Pachycheles panamensis Faxon, 1893, p. 175 (type locality, Panama 

 [City?]) ; 1895, p. 71, pi. 15, figs. 2, 2a. Ortmann, 1897, p. 293 

 (part). Nobili, 1901b, p. 19. Rathbun, 1910, p. 601. Steinbeck 

 and Ricketts, 1941, p. 456, pi. 29, fig. 2. Not Schmitt, 1924b, p. 

 385. 



Pachycheles sonorensis Glassell, 1936, p. 291 (type locality, Bahia 

 Miramar near Guaymas, Sonora, Gulf of California) ; 1937, p. 86; 

 1938a, p. 444. 



Previous records: 



Gulf of California. Bahia Miramar near Guaymas, Sonora: S. A. Glas- 

 sell (Glassell 1936). Off Arena Bank: W. Beebe on Zaca (Glassell 

 1937). Pulmo Reef: J. Steinbeck and E. F. Ricketts (Steinbeck 

 and Ricketts). 



Panama. "Panama" [Cit^^: Albatross (Faxon); (Ortmann). 



Ecuador. Bahia de Santa Elena: E. Festa (Nobili). 



Diagnosis: Carapace covered with short, non-plumose setae; car- 

 pus covered with short rugae or flattened granules and with short, non- 

 plumose setae, its anterior margin with two distinct teeth (a third oc- 

 casionally present) ; manus and fingers covered with long, non-plumose 

 setae ; walking legs with long, non-plumose setae ; telson seven-plated ; 

 a pair of pleopods in male. 



Description: Carapace about as broad as long, in females slightly 

 broader (1.1 times, rarely 1.2), posterolateral regions plicate, otherwise 

 smooth or punctate ; surface covered with short, non-plumose setae, more 

 distinct on anterior regions and particularly on front. Front rather 

 broad, rounded or sinuously triangular in dorsal view, faintly trilobate 

 in frontal view, the median lobe produced. Outer orbital angle produced 

 into a strong tooth. Separated portion of side wall consisting of one 

 large piece, one smaller piece, and several very small fragments. 



First movable segment of antenna with a distal tubercle on anterior 

 margin; second granular, with a few short setae; third nearly smooth; 

 flagellum naked. 



Merus of chelipeds rugose, with a large, strongly projecting, rugose, 

 subtriangular lobe on anterior margin. Anterior margin of carpus with 



