314 DR. G. S. BKADT ON ENT0M08TEACA 



height throughout ; height equal to half the length ; extremities 

 obliquely rounded, the anterior somewhat the narrower of the 

 two ; dorsal margin straight, almost angular behind, and gently 

 rounded off in front, ventral also nearly straight, but upcurved 

 behind : seen from above, ovate, twice as long as broad, with 

 nearly equal and acuminate extremities, the anterior extremity 

 more tapering than the posterior, widest in the middle. Surface 

 rather coarsely sculptured with closely-set rounded fossae. 

 Length ^^ of an inch ("54 millim.). 



Genus Xestolebekis, G. 0. Sars. 



Xestolebeeis cueta, G. S. Brady. 



Cytheridea (?) curta, Brady, Trans. Zool. Soc. 1865, vol. v. p. 370, 



pi. Iviii. figs. 7 a, b. 

 Xestoleberis curta, Brady, Les Fonds de la Mer, t. i. p. 79, pi. x. 



figs. 16-18 ; Report on the Ostracoda of the 'Challenger' Expedition, 



p. 126, pi. xxxi. figs. 6 a-d. 



Xestolebeeis ikteemedia, G. S. Brady ? 



Xestoleberis intermedia, Brady, Les Fonds de la Mer, t. i. p. 94, pi. xii. 



figs. 3-7; Report on the Ostracoda of the 'Challenger' Expedition, 



p. 128, pi. xxxiii. figs. 2 a-d. 



Xestolebeeis variegata, G. S. Brady. 



Xestoleberis variegata, Brady, Report on the Ostracoda of the ' Chal- 

 lenger' Expedition, p. 129, pi. xxxi. figs. 8 a-g. 



Xestolebeeis tumeeacta, G. S. Brady. 



Xestoleberis tumefacta, Brady, Report on the Ostracoda of the 'Chal- 

 lenger ' Expedition, p. 128, pi. xxxi. figs. 4 a-d. 



Xestolebeeis sulcata, n. sp. (Plate XL. figs; 28-30.) 

 Shell, seen from the side, oblong, subreniform, greatest height 

 in the middle and equal to more than half the length ; anterior 

 extremity narrow, rounded, posterior broad, obliquely sub trun- 

 cate ; dorsal margin gently arched, highest in the middle, where 

 it is almost angulated, ventral slightly sinuated : seen from above, 

 ovate, not quite twice as long as broad, widest behind the middle, 

 subacuminate in front, broadly rounded behind : end-view very 

 broadly ovate, almost circular, dorsum pointed. Surface of the 

 shell smooth or slightly papillose, sometimes slightly setose, 

 marked round the margins and on the ventral surface with dis- 

 tinct longitudinal furrows. Length ^ of an inch ('55 millim.). 



