lü'i SESAHiMA ANGOLENSIS BRITO CAPELLO. 



remarkable variety, perhaps a local one. It will be allo- 

 wed to give a descriptiou of the chelipedes of the male. 

 The internal surface of the arm is smooth and provided 

 with two rows of hairs , the under surface also is smooth , 

 but the somewhat convex outer surface has many small 

 transverse rugosities ; the arched inferior margin presents 

 a series of many small acute teeth , the rugose upper margin 

 ends into an acute tubercle , and the external margin has 

 many small granules. The convex upper surface of the 

 wrist presents many transverse rugosities. The large , much 

 compressed hands are equally shaped on both sides, and 

 differ in many regards from the figure (2c) given by Mr. 

 Brito Capello- the upper margin of the palm is compa- 

 ratively shorter and the mobile finger on the contrary 

 much longer than in the specimens from Angola ; this 

 mobile finger is strongly arched and presents a somewhat 

 granular acute upper margin , its external surface being 

 smooth and a little punctate , except the distal end that 

 is a little granular ; the immobile finger is higher than in 

 the type and its tip is not so slender as in the quoted 

 figure and, like that of the mobile finger, imperfectly 

 excavated spoon-like; the upper margin of the immobile 

 finffer shows a larg-e tooth that is divided into four small 

 teeth , on its proximal half , and some small teeth on the 

 distal half. The external surface of the palm is convex, 

 that of the immobile finger more flattened ; the whole 

 external surface is a little punctate but for the rest smooth , 

 except the somewhat granular tip. The convex inner sur- 

 face of the palm shows many scattered granules, that are 

 found also near the upper margin of the internal surface 

 of the immobile finger; the internal surface of the mobile 

 finger being also granular. 



The hands of the female are much smaller and other- 

 wise shaped ; the mobile finger being nearly straight and 

 the immobile less high. 



The terminal somite of the female abdomen is not in- 

 cluded by the preceding , sothat this species presents some- 



]Votes from tlie Leydeii ]VXu.>$euiii , Vol. V. 



