Land, Fresh- Water, and Marine Crustacea. 281 



52. Cythere semiovata, T. Scott. 



1890. Cythere semiovata, T. Scott, Eighth Kept. F. B. S., pt. iii. 



p. 321, pi. xii. figs. 1, 2. 

 1896. ,, ,, B. and N., l. c, Pt. II. (Appendix) p. 732, 



pi. Ixiii. figs. 14, 15. 



Rah. — Off St Monans, frequent. I had at first some doubt 

 concerning the validity of this species, but having as yet seen 

 no described form with which it could agree, either as adult 

 or young, it is retained in this Catalogue. In the original 

 description of the species, " anterior " end should read 

 "posterior" end, and vice versa. 



53. Cythere alhomacidata, Baird. 



1850. Cythere alhomaculata, Baird, Brit. Entomostraca, p. 169, 

 pl. XX. fig. 7. 



Hab. — Off Bo'ness and throughout the estuary, but 

 apparently not very plentifal. 



54. Cythere Bohertsoni, G. S. Brady. 



1868. Cythere Eobertsoni, Brady, Ann. and Mag. Nat. Hist. (4), 

 vol. ii. p. 33, pl. iv. figs. 5, 8-10. 



Rab.— Dredged in the neighbourhood of Inchkeith, as well 

 as in other parts of the estuary, but not very common. 



55. Cythere convexa, Baird. 



1850. Cythere convexa, Baird, Brit. Entomostraca, p. 174, pl. xxi. 

 fig. 3. 



Rah. — Firth of Forth; distribution similar to that of 

 C. Bohertsoni, but it appears to be even scarcer. I have 

 observed it only sparingly. 



56. Cythere limicola, A. M. Norman. 



1865. Cythere limicola, Norman, Nat. and Mag. Hist. Trans. 

 Northumb. and Durham, vol. i. p. 20, pl. vi. 



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

 (1888). I find this to be a moderately rare species in the 

 Firth of Forth. 



