1911.] 



NATURAL SCIENCES OF PHILADELPHIA. 



481 



brown tinted. Those seen are from Somerset and Fayette Coun- 

 ties, Pennsylvania. 



"Vf I 



Fig. G. — Mcsomphix laevigata monticola. End of foot and tail-pore of two 



individuals from Cades Cove, Tenn. 



The penis is fusiform, slender at its distal end, terminating in a 

 stout finger-shaped gland, and with a very short and strong retractor 

 muscle. Epiphallus somewhat longer than the penis. The lower 

 portion of the oviduct is much convoluted. Vagina short, whitish, 

 not swollen basally, and no vaginal gland was seen (PI. XXXVII, 

 fig. 10). 



Length of penis 8.5 mm. 



" epiphallus 10.0 " 



" vagina 3.0 " 



" " spermatheca and duct 10.0 " 



The caudal gland is an irregular curved fissure, partly surrounding 

 a median areole (fig. 6). 



Fig. 7. — Teeth of M. I. monticola, Cades Cove, Tenn. 



The radula of a specimen from Cades Cove has 19, 1, 19 teeth 

 (fig. 7). The central tooth has a very narrow cusp with a minute 

 cutting point. There is no trace of side cusps. The inner side 

 teeth are "transition teeth," with short, oblique, conic cusps, no 



