41 



341 



with lony hair. Front deflexed below the fringe, its lobes oblique and sinuous, a 

 V-shaped median notch. The orbits have a notch above and below the outer angle, 

 and a smaller notch near the middle of the upper margin. Of the 4 lateral teeth, 



Fig. 25. Litocheira cristata, type 9, 7-7 mm. wide: a, dorsal view; b, deflexed margin of front. 



the first is truncate and fused with the orbital angle, the second is subacute with 

 its outer margin truncate, the third prominent, triangular, the fourth small, acute. 



Chelipeds of Ç equal. The arm has a thin crest above, forming a tooth near 

 the end of the segment, and a transverse subdistal 

 ridge on the outer surface. Wrist eroded , a blunt 

 ridge along the inner edge, and on a higher plane 

 than the inner tooth. The chelæ are granulate, fingers 

 long and cylindrical, brown in the terminal ^/s. 



Second pair of legs longest, about twice as long 

 as the carapace. The merus of the first three pairs 

 has a thin smooth crest on its anterior margin, of 

 the fourth pair on its posterior margin. 



Length of Ç 55 mm., width 77 mm., fronto- 

 orbital width 5 mm., frontal width 28 mm. 



15 miles E. of Koh Chuen, 10 fath., shell bottom; II. 2; 1 ?. 6 miles E. of 

 Cap Liant, 9 fath., shell bottom; II. 7 ; 1 ?. 2 miles S. of Koh Tulu, 10 fath., sandy 

 mud, shells; II. 9; 1 Ç type. 



This species is near Pilumnoplax ciliata Stimpson (Proc. Acad. Nat. Sei. Phila., 

 X,- p. 94 [40J, 1858), of which neither a figure nor type specimen exists, but differs 

 in its narrower carapace, triangular third tooth of the side margin, the nondentate 

 upper border of the arm , and in the existence of a crest on the posterior instead 

 of the anterior border of the merus of the last leg. 



Fig. 26. Litocheira cristata, 



type 9, 7'7 mm. wide; a, cliela; 



b, maxilliped. 



I), li. 11. Vidensli. Selsk. SUr.. 7. Ii;ekUc. nalurvUlensk. u({ matlieni. AW V. 4. 



44 



