142 " THETIS " SCIENTIFIC RESULTS. 



of the latter smooth, except the inner superior margin, and the 

 distal and proximal extremities. Fingers acute, their inner edges 

 with five or six denticles on their distal half ; ujDper surface of 

 mobile finger granulose, with two smooth longitudinal ridges ; 

 immobile finger slightly granulose at the base. Ambulatory legs 

 rather elongate, gradually diminishing in size posteriorly, the first 

 nearly twice as long as the fourth without the tarsus. Merus 

 joint of the first leg equal in length to the carpus and propodus, 

 subcylindrical, with a thin even carina on the upper surface, 

 commencing at a short distance from the base and continued to 

 near the distal extremity. 



Outer aspect of crest and upper posterior surface quite smooth ; 

 inferior and anterior granular and setose. Carpus shorter than 

 the tarsus, depressed, a little broader distally than proximally, 

 smooth and grooved above, granular and setiferous at the sides 

 and below. Propodus rounded, sensibly diminishing in diameter 

 towards the extremitj^. 



Tarsus subcylindrical, slightly shorter than the preceding joint, 

 straight, except at the tip, which is hooked ; surface granulose- 

 setose, but not spinose. 



The meral joints of the third and fourth legs are similar to 

 those of the second, except that the keel is shorter and confined 

 to the distal half of the joints ; on the merus of the fifth the 

 keeled is represented by a compressed tooth. 



In the female the post-abdomen is six-jointed, the chelipedes are 

 weak, and the hands small ; the upper and lower borders of the 

 latter are rounded ; the whole of the outer surface of the palm 

 and the upper and lower third of the inner are closely granulose. 



This species may be separated from those previously described 

 by the granulation of the carapace and limbs, and by the character 

 of the postocular spine, which not only differs in shape but is 

 quite distinct from that on the hepatic region. It also wants the 

 conspicuous granules on the pterygostomial which are present in 

 Pugettia incisa and P. quadridens. From P. minor it differs in 

 the absence of a distal spine on the merus, and in having the 

 outer angle obtuse and granulose. 



Colour. — Uniform pale cream. 



Length of carapace, including rostral spines, 14 mm ; breadth 

 8 mm. 



Forty-seven specimens of this interesting form were obtained,, 

 ranging from Cape Three Points to Wata Mooli, and at depths, 

 varying from 20 to 59 fathoms. 



