COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 95 



R. Paessler (Hai'g). Peninsula de Coquimbo; Bahia Herradura 

 de Guayacan; Montemar: Lund Univ. Chile Exped. (Haig). Val- 

 paraiso: (H. Milne Edwards and Lucas) ; U. S. Expl. Exped. 

 (Dana). Bahia de San Vicente: Lund Univ. Chile Exped. (Haig). 



Diagnosis: Carapace with distinct, transversely elongate granules, 

 very strongly convex front to back; no epibranchial spine; front tri- 

 angular; carpus one and a half to a little less than two times as long 

 as wide, anterior margin slightly produced into a lobe at proximal end, 

 margins slightly converging distally from this point; outer margin of 

 manus with a thin, smooth ridge; merus of walking legs unarmed, that 

 of leg 3 somewhat inflated. 



Description: Carapace very strongly convex front to back, covered 

 with distinct granulations and plications, the granules somewhat elon- 

 gate transversely on some specimens, obsolescent on center area. Front 

 broadly triangular, median groove usually deep ; no supraocular spine ; 

 inner orbital angle not produced, or very slightly produced. Outer 

 orbital angle produced into a strong tooth. No epibranchial spine. Cara- 

 pace naked or with a faint pubescence on anterior regions. 



First movable segment of antenna with a narrow lamellar projec- 

 tion on anterior margin; second and third lightly granular; flagellum 

 naked or with vestigial hairs. Outer maxillipeds rugose. 



Chelipeds granular, sometimes quite strongly so, many of the gran- 

 ules slightly elongate as in carapace; devoid of hairs. Merus with a 

 small, strongly projecting, rugose lobe on anterior margin. Carpus one 

 and a half to less than two times as long as wide; anterior margin 

 slightly produced at proximal end, anterior and posterior margins only 

 slightly converging distally from this point ; posterior margin with a low, 

 obliquely rugose ridge ending distally in a small tooth. Outer margin 

 of manus with a smooth, narrow ridge. Gape of fingers with a short 

 pubescence, not produced into a tuft. 



Walking legs rugose or roughly granular. Merus unarmed, anterior 

 margin with a fringe of plumose hairs, that of leg 3 somewhat dilated 

 distally; carpus, propodus and dactylus thickly covered with plumose 

 and non-plumose hairs. 



Material examined: See Table 27. 



Measurements: Males, 6.1 to 14.5 mm; non-ovigerous females, 3.5 

 to 9.0 mm; ovigerous females, 5.0 to 12.5 mm. Measurements were not 

 recorded for the types of either Porcellana granulosa or of P. striata. 

 Nicolet (1849) gave the size as 11 lines (about 20.9 mm), which is 



