S7 

 Plate 12 a. 



EXOSPHAEKOMA VALIDUM, n. sp. 



n.s- Natural size of specimen represented in the adjoining 

 figure^ nearly full dorsal view- 



C. Pr. s. I. Front view of head and first pertcon segment. 

 The first antennaj, epistome, upper lip, and mandibles are 

 shown in situ. 



a.s., a.i. First and second antennae ; the first seen from 

 inner side. 



l.s.^ l.i- Upper lip and epistome in attachment to margin of 

 head, and lower lip. 



mxp. Maxillipeds. 



gn. I, First gnathopod. 



Plate 12B. 



EXOSPIIAEROMA SETULOSUMj n- Sp. 



n.s. Length of specimen in partially bent position, as shown 

 in lateral view. 



C- Front view of head, with basal joint of first antennae in situ. 



IM- Dorsal view of pleon. 



a.s., a.i. First and second antennae ; the first seen from 

 inner side. 



l.s- Upper lip and epistome. 



mxp- Maxillipeds. 



Plate 13. 



PaRASPHAEROMA PROMINENS, n. g- et sp. 



n.s- Natural size of specimen in dorsal view at top of plate. 

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

 ep., l.s. Epistome and upper lip. 



mx. I, mx. 2- First and second maxillae. ' 



mxp- Maxilliped- ] 



gn. I, gn. 2. First and second gnathopods. ; 



prp. I, 5. First and fif-th perseopods. 

 pip- 2, 5- Second and fifth pleopods. 



The separate appendages magnified to the same scale, about 

 twelve and a half diameters. 



Plate 14. 



Cymodoce uncinata, n. sp. 



n.s- Natural size of specimen in lateral view at top of plate. 



