l62 



EXPLANATION OF PLATE VII. 



Quadrivisio hengalensis. 



n.s. Line indicating natural size of specimen figured in lateral 



view. 

 a.s., a.i. ; a.i. 9 . First and second antennae of male ; second 



antenna of female. 

 oc. Front of head flattened to show the four eyes. 

 Is.- m.9 ., l.i.9; mx. i, mx. 2; mxp. Upper lip; mandi- 

 " ' bles and lower lip of female ; first and second maxillae, 



and maxillipeds. 

 gn. 1, gn. 2; gn. 2 9 ; prp. 2, 3, 4, 5- I^i^st and second 



gnathopods of male ; second gnathopod of female ; perseo- 



pods, second to fifth, second and fifth incomplete. 

 T. urp. 3. Telson and third uropod. 



The mouth-organs, with part of gn. 2 and the telson, are 

 magnified on a higher scale than the other details, and parts of 

 the mandibles more highly still. 



