12 CARCINOLOGICAL STUDIES. 



the rest almost smooth. The wrist is armed with an acute 

 tooth at the inner angle , below which a second , somewhat 

 smaller one, occurs. The upper surface bears a tubercular 

 eminence near the articulation with the hand , and appears 

 somewhat rugose, uneven and punctate. The larger hand 

 is twice as long as high , the fingers included ; the smaller 

 one appears to be comparatively a little longer. The upper 

 margin of the palm presents three tubercular eminences at 

 the proximal end; the outer surface is covered with nu- 

 merous slightly transverse or oblique and reticulating rows 

 of confluent and little distinct granules, some of which 

 are finer and smaller than the others. These granules are, 

 however , scarcely distinguishable to the naked eye. The 

 under margin of the palm is smooth and rounded. These 

 transverse and oblique granular ridges are a little more 

 prominent on the smaller than on the larger hand. The 

 fingers measure scarcely two thirds of the length of the 

 palm. They are widely gaping. The mobile finger is strongly 

 arcuate and presents two longitudinal furrows on its upper 

 margin , of which the inner one is very short ; three tuber- 

 cular eminences exist at the base of the upper margin , 

 and are placed transversely. The inner margin of this 

 finger is armed with a strong, obtuse tooth at the base, 

 with a much smaller tooth immediately before it. The lower 

 finger, which is also longitudinally sulcate on its outer 

 surface , is slightly curved upward at its tip , and armed 

 in the middle with a strong tooth , which is preceded both 

 on the outer and inner side by three or four smaller teeth. 

 The strongly excavated extremities of both fingers are 

 ornamented with a tuft of yellow hairs. The teeth with 

 which the fingers of the smaller hand are armed , are much 

 smaller , especially those of the dactylus. The inner surface 

 of the hands and of the fingers is quite smooth. 



The ambulatory legs are short. They are armed along 

 their upper margins with small acute conical granules , 

 which become somewhat larger and spiniform on the dac- 

 tylopodites; some smaller granules are moreover observed 



Notes Iroiti tlie Leydeii ]Museu.m, Vol. Xlll. 



