COMPLETE HAIG: EASTERN PACIFIC PORCELL-ANinAE 237 



anterior margin of carpus with a convex crest, its proximal end sub- 

 rectangular ; outer margin of manus and pollex with a row of fine gran- 

 ules and a thick fringe of plumose hairs; manus of major cheliped 

 swollen, without a crest on dorsal surface, that of minor cheliped with 

 a low longitudinal crest; merus of walking legs with a row of about 

 12 minute spinules on posterior margin, that of leg 3 about twice as 

 long as wide ; propodus with three posterodistal movable spinules and 

 one on middle or proximal third of posterior margin, that of leg 3 

 over twice as long as wide ; dactylus with four fixed spines, distal 

 three large, curving inward, proximal one small, curving outward. 



Description: Carapace subovate, 1.2 to 1.4 times as broad as long, 

 strongly convex front to back, smooth or lightly plicate, widest at epi- 

 branchial regions, lateral margins unarmed ; side walls naked or with 

 vestigial hairs. Front transverse or very slightly convex or concave in 

 dorsal view, with a short fringe of hairs ; sinuously transverse in frontal 

 view, with a very slightly projecting median triangular point. Orbits 

 shallow; outer orbital angle not produced. 



Movable segments of antenna smooth, without anterior projections; 

 flagellum with short hairs. Outer maxillipeds smooth to lightly rugose. 



Chelipeds smooth, unequal in size. Merus with a broad, rounded, 

 strongly projecting lobe on anterior margin ; posterior margin fringed 

 with fine hairs. Carpus 1.4 to 1.8 times as long as wide; anterior mar- 

 gin with a high, somewhat convex lamellar crest, its proximal end 

 markedly subrectangular ; anterior and posterior margins fringed with 

 fine plumose hairs. Manus slender, dorsal surface swollen and without 

 a crest in major cheliped, flattened and with a longitudinal crest in 

 minor cheliped ; outer margin with a sharp crest lined with a row of 

 minute rounded granules, becoming somewhat more projecting on pol- 

 lex, and with a thick fringe of plumose hairs extending nearly to tip 

 of pollex ; gape of fingers with scattered short hairs. Major cheliped : 

 length of palm about twice (1.8-2.2 times) that of fingers; dactylus 

 crossing over pollex at tip, its cutting edge with a row of large granules 

 and a tubercle near center. Minor cheliped: length of palm 1.2 to 1.4 

 times that of fingers; dactylus crossing under (rarely over) pollex at 

 tip, its cutting edge with a double row of small granules. 



Walking legs nearly smooth ; all segments fringed with fine plumose 

 hairs on anterior and posterior margins. Merus with a row of about 12 

 minute spinules along posterior margin, sometimes obsolescent on leg 

 1 ; that of leg 3 about twice as long as wide. Propodus with a pair of 

 movable spinules at distal end of posterior margin, a single spinule 



