120 MATUTA PICTA. 



i<troii(jli/ marked. Frout rounded, entire or slightly eniar- 

 giuate. Hand in the male not granulous upon iis exter- 

 nal surface, in the female a little granular upon the lower 

 part, but presenting in both sexes a granular line close 

 to the inferior margin with a small conical spine at its 

 base near the articulation of the carpus and proceeding 

 on the immobile finger , the latter moreover armed with 

 some small acute tubercles at the base of its under mar- 

 «•in : this granular line and these acute tubercles are not 

 seen in the male of 3fat. virfriv Fabr., though a faint gra- 

 nular line also occurs in the female of this species , but 

 without the acute tubercles of the base of the immobile 

 finger. Ridge on external surface crossing it parallel with 

 the lower margin and terminating at the base of the up- 

 per margin of the immobile finger , divided into five lobes ; 

 in the male the second being an acute spine , the remaining 

 t>mall, obtuse or truncate, in the female the second 

 and also the fourth being acute , spiniform. Ridge upon 

 the mobile finger of the male distinctly striated in the 

 o-reater part af its length , and beaded at it.'< distal extremity , 

 that of the female being obsolete. The larger stria- 

 ted plate on the inner side of the hands prolonged in the 

 direction of the stripes. 



Leiden, March 1881. 



Notes Irom the Leyden Museum. Vol. III. 



