112 CRUSTACEANS OF THE 



puncta. The margins of tbe front and of the orbits are 

 smooth. 



The orbits and the eye-peduncles fully agree with those 

 of Fot. hendersonianum and this is also the ease with the 

 lower surface of the carapace. The median process of the 

 posterior margin of the epistome, however, is not pro- 

 minent and broadly rounded. 



The ischial line on the somewhat punctate, outer maxil- 

 lipedes (Fig. \2d) is a little oblique and runs somewhat 

 closer to the internal than to the external margin of the 

 ischium-joint ; it reaches not to the anterior margin. The 

 merus-joint is somewhat broader than long, the slightly 

 arcuate outer margin makes a right though rounded angle 

 with the straight anterior one. 



The abdomen resembles that of Pot. hendersonianum, so 

 that I refer to the figure of that species and to the mea- 

 surements. The distance between the extremity of the 

 abdominal cavity and the posterior margin of the buccal 

 frame (Fig. 12^") is distinctly shorter than that be- 

 tween the extremity of the ischial line on the outer foot- 

 jaws and the outer margin of the ischium. Sternum and 

 abdomen are finely punctate. 



As well the anterior as the ambulatory legs resemble 

 almost completely those of Pot. hendersonianum, but the 

 fingers of the larger hand (Fig \2<^) show a very fine 

 granulation, when examined under a lens. For the rest 

 I refer to my figure and to the measurements. The upper 

 surface of the cephalothorax has a reddish-brown colour, 

 that is somewhat lighter on the ambulatory legs ; the chelae 

 are yellowish, but the distal half of the fingers is brown. 



Measurements in millim. : 



Greatest breadth of the cephalothorax 13^ 



Length » » » Hi 



Distance between the outer angles of the orbits 10| 



u m II epibranchial teeth 12 



K , „ outer angle of the orbits and the epibranchial tooth 1 

 Breadth of the free border of the front 4| 



» m » posterior margin of the cephalothorax ....... 64 



Motes from tlie Lieyden INXuseuni, Vol. XXI. 



