180 Proceedings of the Royal Physical Society. 



13. Ceriodaphnia quadrangula (0. F. Miiller). 



1785. Daphnia quadrangula, 0. F. Miiller, Entomostraca, p. 90, 

 tab. 13, fig. 4. 



Habitat. — Duddingston Loch, September 1897 and 1898. 

 Taken in the same loch in June 1901 by Dr and Miss 

 Sprague. 



14. Ceriodaphnia affinis, Lilljeborg. 



1900. Ceriodaphnia affinis, Lillj., Cladocera-Suecise, p. 202, tab. 28, 



figs. 19-28. 



1901. ,, scitula, Herriek? (Sprague), Trans. Edin. Field 



Nat. and^Micros. Soc, vol. iv. pt. iii. p. 258. 



1902. ,, affinis, Sprague, op. cit., pt. iv. pi. xxxa. figs. 



1-4. 



Habitat. — High Pond, Penicuik, 7th September 1901 (Dr 

 and Miss Sprague). 



This rare species is one of the additions made to the 

 Entomostracan fauna of the inland waters of Scotland by 

 Dr and Miss Beatrice Sprague. 



15. Ceriodaphnia laticaudata, P. E. Miiller. 



1867. Ceriodaphnia laticaudata, P. E. Miiller, Danmarks Cladocera, 

 p. 130, pi. i. fig. 19. 



Habitat. — Duddingston Loch, September 1897, frequent; 

 not observed in 1898. 



Family Bosminad^e. 

 Genus (9) Bosmina, Baird, 1850. 



16. Bosmina longirostris (O. F. Miiller). 



1776. Lynceus longirostris, O. F. Miiller, Zool. Dan. Prod., No. 2394. 

 1846. Bosmina longirostris, Baird, Ann. and Mag. Nat. Hist., vol. xvii. 

 p. 412. 



Habitat. — Common and generally distributed in small 

 lakes and ponds throughout the lowland parts of the district. 



17. Bosmina longispina, Ley dig. 



I860. Bosmina longispina, Leydig, Naturgesch. d. Daphniden, 

 p. 207, pi. viii. fig. 62. 



Habitat. — Loch Katrine, Loch Achray, Loch Leven, etc.; 



