23 



AMNICOLA TENUIPES, Cauper. 



PLATE 1. FIGS. 14, 15. 



A. testa elongatula, flavo-brunnea, subperfbrata; anfrac- 

 tibus 5 planiusculis, sutura inconspicua, apertura ovata, 

 labio obsolete. Long. 4 mm. 



DESCRIPTION. 



ANIMAL "with the head proboscidiform, sub- 

 bifid, subcylindrical; foot strap-shaped, anterior 

 portion extending laterally, and emarginate be- 

 fore: tentacles setaceous; eyes at the external 

 base of the tentacles; color, except the head 

 and eyes, mottled white. 



SHELL " small, H lin. long, subumbilicated, 

 oblong-ovate, turreted, thin, smooth, lines of 

 growth very slightly marked; color light brown; 

 volutions 5, suture slightly impressed: aperture 

 ovate, oblong, angulated above, rounded at base; 

 labrum simple, sharp. 



HABITS. "Found in the rice-field ditches at 

 Hopeton, Georgia: movement active, made by 

 the joint action of the head and foot, the head 

 advancing before the foot: floats on the surface 

 of the water in an inverted position." 



