326 Proceedings of the Royal Physical Society. 



coast of England, is readily passed over from its resemblance 

 to more widely-known forms. 



Genus (54) Delavalia, G. S. Brady, 1868. 



120. Delavalia palustris, G. S. Brady. 



1868. Delavalia imlustris, Brady, Nat. Hist. Trans. Nortliumb. 



and Durham, vol. iii. p. 134, pi. v. 



Pgs. 10-15. 

 1880. ,, ,, idem, Monograph, vol. ii. p. 43, pi. 1. 



figs. 1-8. 



Hah. — Taken in the neighbourhood of Culross, west of 

 Queensferry, where the water is brackish, and also in brackish- 

 water pools at the mouth of the Peffer Burn, Aberlady Bay, 

 1895. 



121. 'Delavalia rohusta, Brady and Kobertson. 



1875. Delavalia rohusta, B. and B., Brit. Assoc, Rept. (1875), p. 



196. 

 1880. ,, ,, Brady, I. c, vol. ii. p. 4G, pi. li. figs. 



15-21. 



Hob. — In pools at the mouth of the Cocklemill Burn at 

 the east end of Largo Bay, 16th August 1890; rare. 



122. Delavalia reflexa, Brady and Eobertson. 



1875. Delavalia reflexa, B. and R., Brit. Assoc. Rept. (1875), p. 



196. 

 1880. ,, ,, Brady, I. c., vol. ii. p. 45, pi. li. figs. 



1-14. 



Hab.—Dvedged off Burntisland in November 1893; 

 moderately rare. 



Genus (55) Beatricella,i T. Scott, 1905. 



123. Beatricella mimica, T. Scott. 



1897. Delavalia mimica, T. Scott, Fifteenth F. B. Rept., pt. iii. 



p. 150, pi. i. figs. 1-9. 

 1905. Beatricella mimica, T. Scott, Ann. and Mag. Nat. Hist. (7), 



vol. xvi. p. 568. 



jjal. — Dredged in the neighbourhood of Gran ton and off 



^ This genus has been named in compliment to Miss Beatrice Sprague, 

 daughter of Dr T. B. Sprague, Edinburgh, whose names are so frequently 

 referred to in this Catalogue as successful students of Scottish fresh-water 

 Crustacea. 



