ROCINELA DANMONIENSIS. 



291 



ISOPODA. 

 NORM All A. 



ROCTNELA DANMONIENSIS. 



Specific character. Elongate-ovate ; eyes converging anteriorly, large, 

 nearly joining dorsally ; basal joints of the upper antenna subcylin- 

 drical ; coxa (especially of the three posterior pairs of pereiopoda) prominent, 

 elongate -ovate, and pointed ; second, third, and fourth segments of the pleon 

 sickle-shaped and laterally produced. 



Length, one inch. 



Rocinela Danmoniensis. LEACH, Diet. Sci. Nat. xii. p. 349. DESMAREST, 



Crust, p. 304. MILNE EDWARDS, Crust, iii. 

 p. 244. WHITE, Cat. Brit. Crust, p. 80. Pop. 

 Hist. Brit. Crust, p. 352. 



THIS species has hitherto been known only by Dr. 

 Leach's original typical specimen taken half a century ago 

 in Plymouth Sound, preserved in the British Museum, 

 which has supplied the materials for the figures given at 

 the head of this description. It was described by Leach 

 as being "en si mauvais etat qu'il est impossible d'en 



V Z 



