1910.] 



NATURAL SCIENCES OF PHILADELPHIA. 



57 



M£5A 



CAI 2 P _BUCKtYE_.C*rr<70N 



Fig. 3. — Principal collecting stations in the northern canyons of the Dos Cabezas 



range. 



Genitalia, PI. Ill, figs. 1 , 2, 4, 7. Penis of moderate length, somewhat 

 less than one-third the length of spermatheca and duct, with a long 

 retractor muscle; the penis-papilla (pp.) cylindric, annulated distally, 

 with conic tip. Epiphallus somewhat shorter than penis; flagellum 

 0.6 or 0.7 mm. long. Vagina generally not much longer than the 

 penis. Sole (in alcohol) ochre or dirty white, uniform or with 

 slightly darker sides. Back gray, the flanks and tail very pale. 



Jaw with 6 to 8 ribs, grouped in the median half. Radula with 

 26,12,1,12,26 to 27,13,1,13,27 teeth, centrals and laterals without 

 ectocones; some of the marginals with both cusps bifid. 



Type No. 94,328 A. N. S. P., from Buckeye Canyon, Dos Cabezas 

 range of the Chiricahua Mountains, at Station 1, fig. 3. 



It ranges throughout Buckeye and Happy Camp Canyons, and at 



