CARCTNOLOGICAL STUDIES. 235 



I sent to Dr. Hilgendorf a male , the cephalotborax of 

 which is 37 mm. broad ; the abdomeu aud the smaller 

 hand of this specimen have been figured (fig. 2^ and 2*^); 

 moreover I sent him a detached larger hand of a male, 

 which has been figured in fig. 2*1. 



The cephalotborax (fig. 2), closely resembling that of 

 Telphusa Goudoti A. M. E. from Madagascar , is rather 

 much enlarged, the proportion of its breadth to the 

 length (the abdomen excluded) being in the adult female 

 from Java as 43 : 30 , so that it is almost once and 

 a half as broad as long. The upper surface of the 

 rather thick cephalotborax is strongly convex longi- 

 tudinally and also somewhat declivous towards the la- 

 teral margins. The cervical suture is represented by the 

 usual H-like impression on the posterior half of the up- 

 per surface, that separates the gastric from the cardiac 

 region and by two oblique longitudinal impressions on the 

 anterior part, one on each side, separating the gastric 

 from the anterior branchial regions ; the last-named grooves 

 are not continuous with and therefore do not pass into 

 the median H-like impression , so that the cervical suture 

 may be said to be interrupted on each side of the poste- 

 rior half of the gastric region. At a short distance from 

 and just above the insertion of the last pair of legs, a 

 transverse , slightly arcuate impression is found on each 

 side of the posterior part of the upper surface ; these 

 transverse grooves separate the intestinal from the poste- 

 rior branchial regions. The interregional grooves are often 

 less distinctly indicated and shallower in younger individu- 

 als. The branchial regions are much inflated, 



dem Zahne glatt (nur der Zahnkerb selbst und die Ranzeln störea die Liuie), 

 von Martens sagt : «sehr fein gekerbt" (soil vielleicht der Zahnkerb sein). 

 Drittletztes Abdominalsegment des Miinnchens ist kaum langer als breit (an 

 der schmalsten Stelle 3 mm. breit, hinten and vorn 3-J; nirgends langer als 

 3y). Die Scheeren sind bei (ƒ und Q recht ungleich (Höhe Q 8:11^, ^ 6: 

 9|); klaffen beim (kleineren) Mannchen schon. Am Carpus ist der hintere 

 (nicht vordere) Zahn kleiner, also wie gewöhnlich bei Telphusa." 



Notes from the Leyden Museum, Vol. XJTV. 



