292 Proceedings of the Royal Physical Society. 



111. Bythocythere simplex (Norman). 



1865. Cythere simplex, Norman, Nat. Hist. Trans. North limb, and 

 Durh., vol. i. p. xvii, pi. v. figs. 1-4. 



Hah. — South Bay, in deep water west of May Island, and 

 other places, but not very common. This is a fine large 

 species, conspicuous from its white colour ; it forms part of 

 the food of young Gadoids, Eocklings, Lumpenus, Long 

 Bough Dabs, and other fishes. 



112. Bythocythere recta, G. S. Brady. 



1868. Cytheropteron rectum, Brady, Mon. rec. Brit. Ostrac, p. 476. 



Hah. — Largo Bay ; rare. 



Genus (32) Pseudocythere, G. 0. Sars, 1865. 



113. Pseudocythere caudata, G. 0. Sars. 



1865. Pseudocythere caudata, G. 0. Sars, Oversigt af Norges 

 marine Ostracoder, p. 88. 



Hal.— Firth of Forth (Brady and Eobertson). Off St 

 Monans; frequent. 



Genus (33) Sclerochilus, G. 0. Sars, 1865. 



114. Sclerochilus contortus (Norman). 



1862. Cythere contorta, Norman, Ann. and Mag. Nat. Hist. (3), 

 vol. ix. p. 48, pi. ii. fig. 15. 



Hab. — South Bay, and in deep water west of May Island ; 



frequent. 



i 



Genus (34) Cytherideis, T. E. Jones, 1856. 



115. Cytherideis subulata, G. S. Brady. 



1868. Cytherideis subulata, Brady, Mon. rec. Brit. Ostrac, p. 454, 

 pi. xxxv. figs. 43-46. 



Hab. — Dredged off the west side of Inchkeith and other 

 parts in the estuary ; not very common. 



Genus (35) Cytherois, W. Miiller, 1884. 



116. Cytherois Fischeri (G. 0. Sars). 



1865. Paradoxostoma Fischeri, G. 0. Sars, I. c, p. 96. 

 Hab. — Off Aberlady and St Monans; frequent. 



