274 



J. G, DE Man : Caridina nilotica. 



[Vol.. II, 



TABI.E B. 



Measurements of speciniejis from the Lake Victoria Nvanza. 



lycngth from tip of rostrum to tip of telson in milli- 

 metres 



Toothing-formula of the rostrum . . 



Rostrum longer > , or shorter < than the scaphocerites 

 Rostrum longer > , or shorter < than the carapace . . 

 Proportion between the length of the toothed and 



that of the unarmed part of the upper margin 

 Length of carpus 

 Breadth of carpus 



Proportion between length and breadth of carpus 

 L/Cngth of chela . . . . . . 



Breadth of chela 



lycngth of fingers 



Proportion between length of fingers and that of palm 



Proportion between length and breadth of chela 



Length of carpus 



Breadth of carpus at distal extremity 



Proportion between length and breadth of carpus 



IvCngth of chela 



Breadth of chela 



Length of fingers 



Proportion between the length of fingers and that of 



palm 

 Proportion between length and breadth of chela . . J 

 Length of propodite . . . . . . , . -s 



Breadth of propodite in the middle . . • • m 



Proportion between length and breadth of propodite 

 Length of dactylus 

 Proportion between length of propodite and that of 'l.Jh 



dactylus 

 Breadth of dactylus 



Proportion between length and breadth of dactylus . 

 Number of spines of dactylus terminal claw included J 

 Length of propodite . . . . . . . . ->, 



Breadth of propodite in the middle 



Proportion between length and breadth of propodite 



Length of dactylus 



Proportion between length of propodite and that of j.-^ 



dactylus . . . . . . . . . " 



Breadth of dactylus 



Proportion between length and breadth of dactylus . 



Number of spines of dactylus, terminal claw included J 



No. 2 



0-446} 



077 



17 



