COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 101 



highest point; outer margin of manus with a thick crest; merus of 

 walking legs unarmed, that of leg 3 inflated. 



Description: Carapace smooth or lightly punctate, regions not dis- 

 tinct ; very strongly convex front to back, especially strongly deflexed 

 in front of epibranchial region. Front broadly triangular, without me- 

 dian groove or sulcus; orbits straight, without a concavity, forming a 

 nearly straight line with front to outer orbital angle, the latter not pro- 

 duced. No epibranchial spine. Carapace naked, front sometimes faintly 

 pubescent. 



Movable segments of antenna roughened, without projections; fla- 

 gellum thick, naked or with very short hairs. Outer maxillipeds smooth 

 or punctate. 



Chelipeds smooth or lightly granular, faintly pubescent. Merus with 

 a strongly projecting lobe on anterior margin. Carpus one and a half 

 to less than two times as long as wide ; a lobe at proximal end of 

 anterior margin, anterior and posterior margins converging distally 

 from its highest point ; posterior margin with a smooth crest, ending 

 distally in a small tooth. Outer margin of manus with a thick, smooth 

 crest. Gape of fingers devoid of pubescence. 



Walking legs smooth or punctate; merus unarmed, that of leg 3 

 inflated at distal end ; propodus and dactylus with short tufts of setae. 



Material examined: See Table 29. 



Measurements : Males, 6.6 to 25.8 mm; non-ovigerous females, 6.2 

 to 22.9 mm ; ovigerous females, 6.7 to 20.3 mm. 



In the type description, Guerin (1838a) stated "largest specimens 

 nearly 2.5 dm." This was undoubtedly a misprint for "cm", for 2.5 cm 

 or 25 mm is close to the largest size actually attained by the species. 

 H. Milne Edwards' "about one pouce" ( = ca. 27 mm) was probably 

 based on some of Guerin's type series. 



Color: Ground color of carapace light caerulean blue overcast 

 with a light jade green on frontal, gastric and cardiac areas. Blue 

 shows brightly in several places, especially on cardiac region. Lateral 

 areas light blue striated with bluish white. Margin of carapace grena- 

 dine red. Intestinal a tone lighter. Eyestalk brown and eye dark green. 

 Antenna light pansy purple. Chela lavender overcast with dark green. 

 Merus of ambulatory legs caerulean blue, grenadine red near articula- 

 tion with carpus. Carpus caerulean blue. Propodus and dactyl light 

 orange buff broadly striped with dark brown. Abdomen caerulean 



