CARCINOLOGICAL STUDIES. 55 



by deep grooves. The regions 2 M are each divided by 

 a distinct groove in two secondary areolae , the mesogastric 

 areola 3 M is tripartite and separated moreover from the 

 areola 4 M. The areola- cardiaca 1 P is separated by 

 rather deep grooves from the areolae 3 R and 2 P; the 

 anterior margin of this areola 1 P presents a narrow 

 emargiuation in the middle , but this groove does not 

 extend to the posterior margin , so that the two halves 

 of this lobule are united with one another posteriorly. 

 The short close down , that presents the upper surface of 

 the cephalothorax ,. does not cover the small rounded 

 granules , which are found on the areolae. Sternum and 

 abdomen are somewhat punctate , but appear for the rest 

 nearly smooth. 



The right chelipede is a little larger than the left. The 

 wrist is armed with a rather acute tooth at the internal 

 angle of the upper surface and with a very acute spine 

 below that tooth at the inner angle of the under surface. 

 The hands are covered above and externally with numerous 

 conical, rather acute tubercles, that are arranged more or 

 less in transverse series. The lower margin of the hand is 

 rounded and smooth. The fingers are sulcate. The upper 

 margin of the dactylus presents two rows of acute tubercles 

 until the middle; some small tubercles are also found on 

 the index, a transverse row of tubercles of the palm ex- 

 tending on the immobile finger. The inner margin of the 

 index presents three conical teeth , that of the dactylus 

 also three , of which the proximal one is the largest. 



The ambulatory legs are covered with the same close 

 down as the upper surface of the carapace and are more- 

 over densely hairy on the margins ; the mero-, carpo- and 

 propodites are armed with small sharp spines on their 

 anterior margins. 



The cephalothorax is 11 V5 luin. broad and TVs ^^- long. 



This species inhabits the seas of Australia, New Cale- 

 donia and the Fgi islands. 



N otes from tlie Leyden JMuseum , Vol. Xll. 



