28o 



ZOOLOGY OF THE FAR EAST. 



interruptedly from the base to the apex, with the result that it is quite impossible 

 to draw any line of separation between the subterminal teeth and those that form the 

 proximal series. The teeth are crowded at the base and the interspaces between them 

 sometimes increase in size as they approach the tip. In a very few cases there is a 

 distinct break in the series and such specimens seem to differ only in a small degree 

 from some from Mbawa in Flores examined by de Man. He notes that in these 



Fig. 10. — Caridina brachydadyla, subsp. peninstdaris, nov. 



a. Anterior part of carapace, rostrum, etc. e. Dactylus of same further enlarged. 



b. First peraeopod. /. Fifth peraeopod. 



c. Second peraeopod. g. Dactylus of same further enlarged. 



d. Third peraeopod. 



examples " der distale ungezahnte Theil des oberen Randes ist kurz, nicht selten sehr 

 kurz, zumeist ein wenig aufgebogen; vor der Spitze stehen 1-3 Zanchen, aber nicht 

 selten riicken zwei oder drei Zanchen der proximalen Reihe mehr nach vorn und steh- 

 endann auf dem sonst gewohnlich zahnlosen Theile" (de Man, I.e., 1892, p. 393, 

 pi. xxiv, figs. 29^', ii). The lower margin of the rostrum bears from 6 to 10 teeth in 

 the few specimens from Patani, from 8 to 17 in those from Penang.^ The teeth may 



1 The numbers of rostral teeth in the few specimens from Patani and in fifty examples from Penang are as follows : — 



Number 



Number of 



Specimens 



of 







dorsal teeth. 



Penang. 



Patani R. j 



21 



I 





22 







23 



2 



I 



24 







25 



6 





26 



2 



2 



27 



4 



2 



28 



7 



4 



29 



8 



2 



30 



7 





31 



2 





32 



4 



I 



33 



2 





34 



2 





35 



I 





36 



I 





37 



I 





Number 



1 

 Number op Specimens | 



of 







ventral teeth. 



Penang. 



Patani R. 



6 





I 



7 







8 



3 



2 



9 



5 



5 



10 



10 



4 



II 



5 







12 



5 







13 



8 







14. 



7 







15 



3 







16 



3 







17 



I 







