80 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



Front thick, but not double edged, almost truncate, the merest sugges- 

 tion of advancement on either side of the shallow median V and at the 

 external angles, which are broadly rounded. Inner orbital tooth con- 

 spicuously separated from front, as large as, but less acute than, the 

 exorbital, which it neatly apposes. Supraorbital tooth rounded, edge 

 granulate, more advanced toward internal than near external orbital 

 fissure. Exorbital or first lateral tooth completely fused with the second, 

 their combined width being exactly equal to that of the third, edge granu- 

 late and sinuous. Third tooth broadest, tip almost rectangular, outer 

 margin almost straight, obliquely angled at base, inner margin slightly 

 concave with several denticles. Fourth and fifth teeth acute, upturned, 

 thickened; carapace widest at fourth tooth, fifth smaller and postlateral 

 in position. Prominent transverse ridges of carapace located on epigastric 

 and mesobranchial regions; shorter transverse elevations, consisting of 

 but a few granules surmounted by a hair, located on postfrontal, cardiac, 

 and postbranchial regions; hepatic areas raised but without distinct 

 ridges. Two thickened, granular elevations in advance of posterior mar- 

 gin of carapace. 



Antennules folding obliquely, almost transversely. Basal antennal 

 article meeting lateral extension of front, flagellum lodged in orbital 

 hiatus. Lower orbital margin with beadlike granules; inner tooth ad- 

 vanced, outer notch deeply indicated. Merus of third maxilliped granu- 

 lar, proximal and distal margins subparallel, inner edge rounded, a slight 

 concavity for the insertion of the granulate and hairy palpus. 



Chelipeds unequal, coarsely granulate, and sparsely pubescent. Merus 

 with a subterminal tooth. Carpus with three prominent tubercles in 

 addition to the blunt spine at the anterointernal angle; granules ar- 

 ranged proximally in a rugose pattern ; a broad, shallow sulcus paralleling 

 the outer, distal border. Manus with a granular superior crest deeply 

 furrowed, height of palm exceeding superior length, outer and lower 

 two thirds of surface smooth and bare. Fingers channeled above, de- 

 flexed, incurving, a large tooth at base of dactyl of major claw, pollex 

 irregularly denticulate, color not extending on palm. Fingers closing 

 with a slight gape, tips crossing. 



Ambulatory legs granulate, compressed. Superior margin of merus 

 with sharpened granules and plumose hairs. Carpus deeply furrowed. 

 Propodus wide with conspicuous hairs and acuminate granules on in- 

 ferior margin. Dactyl finely granulate, pubescent, horny tip short and 

 abruptly angled. 



