THE NAUTILUS. 119 



KI > iphragm ophora fidelis G ray. 

 Polygyra columbiana Lea. 

 Pristiloma sp., fragment. 

 Circinaria vancouverensis Lea. 

 Circinaria sportella hybrida Ancey. 

 Goniobasis plicifera silicula Gld. 



PHILOMYCTJS IN ARIZONA. 



BY H. A. PILSBRY. 



In the course of our desert journey of 1910, the Santa Rita 

 Mountains, in southern Arizona, were visited. The party 

 (Messrs. Ferriss, Daniels, and the writer) camped at the head 

 of Agua Caliente canyon, somewhat above the 7000-foot contour. 

 A two-day trip was made eastward across Madera canyon, and 

 over the saddle north of Old Baldy, dropping down the eastern 

 slope of the range to about the 6800-foot line. Some slugs 

 picked up here (our Station 17). were thought to be all Agrio- 

 HIIKIX, but on closer inspection, three Philomycus were found in 

 the lot. It is a new genus for Arizona ; in fact, the place is over 

 a thousand miles southwest of any record in this country. The 

 species may be called Philomycus (Pattifera) arizon&nsis, n. sp. 

 It is 20mm. long, the sole 1.8 mm. wide. Color: above bister, 

 below snuff brown (in alcohol). Jaw with few ribs. Type 

 and two smaller specimens are No. 115575, A. N. S. P. 



HENRY MELVILL GWATKIN. 



Professor H. M. Gwatkin, widely known as a special student 

 of molluscan radulse, died during the first half of November. 

 He was born at Barrow-on-Soar, Leicestershire, England, July 

 30, 1844, and was educated at Shrewsbury School and St. John's 

 College, Cambridge. He took his B. A. at Cambridge in 1867, 

 and was a Fellow of St. John's College from 1868 to 1874, 

 Theological Lecturer from 1874 to 1891, and Dixie Professor of 

 Ecclesiastical History from 1891 to the time of his death. He 

 was Gifford Lecturer at Edinburgh, 1903-05, and in 1897 re- 



