ROCINELA DANMONIENSIS. 291 
ISOPODA. AGI DAL. 
NORMALTIA. 


ROCINELA DANMONIENSIS. 
Specific character. Elongate-ovate ; eyes converging anteriorly, large, 
nearly joining dorsally; basal joints of the upper antenne 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. Laon, Dict. Sci. Nat. xii. p. 349. Desmarzst, 
Crust. p. 304. Mrtyz Epwarps, Crust. iii. 
p. 244. Wurre, Cat. Brit. Crust. p. 80. Pop. 
Hist. Brit. Crust. p. 352. 
Tuts 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 “fen si mauvais état qu’il est impossible d’en 
U2 
