COMPLETE HAIG : EASTERN PACIFIC PORCELLANIDAE 27 



20b. Manus without dorsal crests, no heavy rounded crest along 



outer margin 22 



21a. Carpus with 3 or 4 narrow, strongly projecting conical teeth 

 confined to proximal ^ of margin. . . lezvisi lewisi 



21b. Proximal 2 or 3 teeth of carpal margin partly or wholly co- 

 alesced to form a broad tooth, this followed by a smaller 

 tooth lewisi austrinus 



22a. Carapace covered with granules and short plications, long plu- 

 mose hairs anteriorly; carpus about 1^^ times as long as 

 wide, covered with long plumose hairs. . . crenulatus 



22b. Carapace nearly smooth, with traces of hair on front; carpus 

 less than 1^ times as long as wide, naked or with traces 

 of hair ortmanni 



23a. Carpus about 1^ times as long as wide; manus with 2 or 



3 crests on dorsal surface 24 



23b. Carpus usually more than 1^ times as long as wide; manus 



without crest or with a single crest on dorsal surface. . . 25 



24a. Front narrow, trilobate in dorsal view ; orbits concave ; proxi- 

 mal y^ of anterior margin of carpus with a broad, strongly 

 projecting lobe, its edge obscurely subdivided into 3 ; crests 

 on dorsal surface of manus low, separated by indistinct 

 grooves artifrons 



24b. Front broad, triangular or rounded in dorsal view; orbits 

 very shallow, in dorsal view nearly straight; anterior margin 

 of carpus with a strong proximal lobe, anterior and posterior 

 margins converging distally from its highest point; crests on 

 dorsal surface of manus strong, separated by deep, broad 

 grooves cocoensis 



25a. Orbits without a concavity, forming a nearly straight line with 

 front to outer orbital angle; front broadly triangular, with- 

 out a median groove; gape naked. . . . violaceus 



25b. Orbits concave; front with at least a faint median groove; 



gape with at least traces of pubescence 26 



26a. Carpus over twice as long as wide 27 



26b. Carpus twice as long as wide, or less 29 



