JOURNAL 



OF THE 



ROYAL MICROSCOPICAL SOCIETY 



JUNE, 1911. 



TRANSACTIONS OF THE SOCIETY. 



XI. — Canadian Rotifera : Collected by the Shuckleton Antarctic 



Expedition, 1909. 



By J. Murray, F.K.S.E. 



(Read April 19, 1911.) 

 Plates VI.-VIII. 



The opportunities for collecting in Canada occurred on a journey 

 across the continent in June 1909. At Victoria there was a stay 

 of a few hours, and in Vancouver of a whole day. Afterwards the 

 only time available was when the train stopped at stations for 

 half an hour or so to allow time for meals. Twice we were delayed 



EXPLANATION OP PLATE VI. 



Fig. la. — Philodiiui plena (Bryce), variety. 



„ 16. Ditto. Egg. 



,, lc. Ditto. Jaw. 



„ Id. Ditto. Spurs and toes. 



,, lc. Ditto. Another variety of spurs 



,, 2a. — Philodina sp. (?) 



„ 26. Ditto. Jaw. 



„ 3a. — Plewretira brycei (Weber) variety. 



„ 36. Ditto. Jaw. 



,, 4a. — Callidina canadensis sp. n. 



„ 46. Ditto. Head, showing rosette. 



,, 4c. Ditto. Jaw. 



„ id. Ditto. Spurs. 



,, 5a. — Callidina papillusa (Thomp.), variety. 



,, 56. Ditto. Egg, side view. 



„ 5c. Ditto. Egg, front view. 



June -21st, Jul/ u 



