1908] Zoological Notes for 1908. 183 



of North America." for the reception of two specimens of a 

 small rodent which has all the external appearance of a field 

 mouse or vole, but which has the teeth of a lemming. As its 

 name implies (sun-apto, to join together; and mus, a mouse) 

 the founder of the genus supposed it to be a connecting link 

 between the field mice and the lemmings. 



In 1896, in a paper on "The Genera and Subgenera of Voles 

 and Lemmings," published by the U.S. Department of Agri- • 

 culture. Mr. Gerrit S. Miller, Jr., says that Synaptomys is a true 

 lemming, and that it differs from all the other genera of Micro- 

 tinae by its grooved inci.sors. 



A little earlier in the same year, Dr. Merriam, in a "Revi- 

 sion of the Lemmings of the genus Synaptoinys," published in the 

 tenth volume of "Proceedings of the Biological Society of 

 Washington," had divided the genus into two subgenera, viz.: 

 (1) Synaptomys (proper), Baird, 1857; and (2) Mictomys, 

 True, 1894. The first of these subgenera is said to be repre- 

 sented by "four fairly well defined forms." and the second by 

 "at least four species." 



The only species of the subgenus Synaptomys , as defined 

 by Merriam, that has yet been found in Canada is S. jatuus, 

 Bangs (the "Northern Lemming Mouse"). The type and eight 

 cotypes of this species were collected "about Lake Edward," 

 P.Q., by Mr. Bangs in 1895, and specimens of it are recorded as 

 haVing been collected at Godbout, P.O., by Mr. Napoleon 

 Comeau in the same year; and at two localities in New Bruns- 

 wick by Dr. J. A. Allen in 1894. 



Of the subgenus Mictomys, two species are now known to 

 occur in Canada. These are (1) Synaptomys (Mictomys) in- 

 nuitus, True, which is the Lemming Mouse of Ungava; and (2) 

 Synaptomys (Mictomys) Wrangeli, Merriam, which is the Lem- 

 ming Mouse of Alaska. The first of these species was described 

 in 1894, and was based upon a specimen collected by Mr. 

 Lucien M. Turner at Fort Chimo, near Ungava Bay, which is 

 still the only locality at which this species has been collected. 



The second was described in 1896, from two specimens 

 collected in 1895 by Mr. Clarke P. Streator at Wrangel, Alaska. 

 Mr. Keen's discovery of specimens at Metlakatla extends the 

 southern range of this species to the coast of British Columbia 



BIRDS. 

 (3) Ceratorhina monocerata (Pallas) Cassin. 

 (The Rhinoceros Auklet). 

 /^ A good specimen of the single egg of a pair of birds of this 



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