PLATE LXXXVII. 



Pontophilus gracilis (p. 487). 



Fig. 1. Ventral aspect ; enlarged four times. 



„ 2. Dorsal view ; enlarged four times. 



„ 3. Branchiae, in natural position ; br, section of plume. 



j) <? . First pleopod of male. 



<p % . First pleopod of female. 



q $ . Second pleopod of male. 



q ? . Second pleopod of female. 



