280 Proceedings of the Royal Physical Society. 



45. Cythere pelhccida, Baird. 



1850. Cythere 'pellucida, Baird, Brit. Entom., p. 173, pi. xxi. fig. 7. 



Hah. — Cramond Island, taken with hand-net at low water 

 in 1889, and subsequently in other parts of the estuary, 

 chiefly in brackish water. 



46. Cythere confusa, Brady and N'orman. 



1865. Cythere pellucida, G. 0. Sars (not Baird), Oversigt af Norges 



mar. Ostrac, p. 31 

 1889. ,, confusa, B. and E"., I. c, Ft. I. p. 127, pi. xiv. 



figs. 16-18. 



Hal. — Largo Bay, off Musselburgh, and other places; 

 moderately frequent. 



47. Cythere porcellanea, G. S. Brady. 



1889. Cythere porcellanea, B. and N., I. c., Pt. I. p. 127, pi. xiv. 

 figs. 22-24. 



Hah. — South Bay, off Musselburgh, and other places, but 

 for the most part in shallow water that is slightly brackish. 



48. Cythere tenera, G. S. Brady. 



1868. Cythere tenera, Brady, Mon. rec. Brit. Ostrac, p. 599, 

 pi. xxviii. figs. 29-32. 



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

 not common. 



49. Cythere semipunctata, G. S. Brady. 



1868. Cythere{1) semipunctata, Brady, Mon. rec, Brit. Ostrac, p. 411, 



pi. xxix. figs. 33-37. 



Hah. — Aberlady Bay and Largo Bay ; not common. 



50. Cythere crispata, G. S. Brady. 



1889. Cythere crispata, B. and N., I. c, Pt. I. p. 131, pi. xv. 

 figs. 1, 2. 



Hah. — Off the west side of Inchkeith; scarce. 



51. Cythere gihhosa, Brady and Eobertson. 



1869. Cythere gihhosa, B. and R. , Ann. and Mag. Nat. Hist. (4), 



vol. iii. p. 368, pi. xxi. figs. 1-3. 



Hah. — Brackish pools at the mouth of the Cocklemill 

 Burn, Largo Bay, 1890. 



