1SOPODA. 



NORM ALIA, 



DYNAMENE MONTAGUI. 423 



SPH^EROMID^E. 



DYNAMENE MONTAGUI. 



Specific cJiaracter. Rather narrow ; sub-parallel. Sixth segment of the 

 pereion produced in the middle of its hind margin into a triangular lobe ; 

 outer plate of the uropoda longer than the inner. 



Length, one-fourth of an inch. 



Dynamene Montagui. 

 Cymodocea Montagui. 



LEACH, Diet. Sci. Nat. xii. p. 344. DESMARHST, 



Cons. Crust, p. 298. 

 MILNE EDWARDS, Crust, iii. p. 215. WHITE, B. M. 



Cat. Brit. Crust, p. 77. Pop. Hist. Brit. Crust. 



p. 266. 



THIS species is rather narrow, with the sides of the 

 body somewhat parallel. The dorsal surface is marked 

 with minute slightly impressed punctures. The sixth 

 segment is produced in the middle of its hind margin 



