EXPLANATION OF PLATE X. 



Sphaeroina annandalei , sp. nov. 



n.s. Lines indicating natural size of specimen figured, below in 

 dorsal and lateral view. 



a.s., a.i. First and second antennae. 



l.s. Upper lip with epistome. 



m., m., mx. i., mx. 2., mxp. Mandibles (figure on the left 

 without palp), first and second maxillae, maxillipeds. 



gn. I., prp. 2., prp. 5. First gnathopod, second and fifth peraeo- 

 pods. 



pip. 4., pip. 5. Fourth and fifth pleopods, with further enlarge- 

 ment of the apical bulb in the fifth pleopod. 



The mouth-organs and the above-mentioned bulb are more 

 highly magnified than the antennae, limbs and pleopods, the scale 

 being uniform for each of the two sets. 



