14 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 5 



January 25, 1933; collected by Allan Hancock Expedition of 1933 at 

 Station 27-33. 



Measurements: Female holotype: length of carapace including 

 rostrum 7.1 mm., width of carapace 5.3 mm,, length of rostrum 2.1 mm. 



Diagnosis: Carapace foreshortened, wider between anterolateral 

 than between posterolateral lobes. No preocular tooth. No small tooth 

 on lateral margin between the two lobes. Distance between anterior 

 lobes greater than distance from the tip of anterior lobe to middle of 

 posterior border. 



Description: Carapace pentagonal, depressed anteriorly and later- 

 ally, leaving a bold cardiogastric ridge and a cross ridge at the hepatic 

 level. A single pair of tubercles on the gastric region, anterior to each 

 a patch of strongly recurved hairs; a small tubercle near the postero- 

 lateral lobes and a cardiac one at a slightly posterior level. Lobes and 

 tubercles clavately setose. Hepatic lobes strongly recurved, outer mar- 

 gins forwardly directed, subparallel, tips rounded; width of carapace 

 at middle of anterior lobes greater than between posterior lobes and 

 greater than the distance from the tip of the anterior lobe to the mid- 

 point of the posterior margin of the carapace. Rostrum more than one 

 third as long as the postfrontal portion of the carapace and with an 

 average breadth of one half its length measured from the supraocular 

 swelling, lateral margins raised near tip only, extremity faintly bilobed, 

 lobes rounded, a slight median sulcus indicated. 



Antennae almost reaching tip of rostrum. Antennular cavity reach- 

 ing middle of rostrum, not nearly filled with antennules, and very in- 

 completely divided into two fossae. Merus of outer maxilliped notched 

 at anterointernal angle to receive palpus, first article of palp enlarged 

 and flattened, last two articles small and cylindrical, hidden behind 

 merus. 



Cheliped with visible portion of merus and carpus nodose, merus 

 with a lump on superior margin one third from base, carpus with a 

 prominent inner node and one or more superior nodules ; propodal finger 

 deflexed, dentate, teeth more numerous and more prominent than those 

 of the movable finger, of which but three or four may be counted. 



First ambulatory leg exceeding cheliped in length, its dactyl as long 

 as the propodus. Dactyls of remaining legs shorter, strongly falcate, 

 finely dentate, digital tooth of propodus strong, blunt, and with a hairy 

 tip. 



Abdomen of female with three tubercles on first segment. 



