AMNICOLA DECISA, Hald. 



PLATE 1. FIGS. 2, 3. 



A. testa virescente, imperforata; anfractibus 5 planius- 

 culis; labio subrectilineari, in anfractum ultimum com- 

 presso. Long. 4 mm. 



DESCRIPTION. 



ANIMAL dark colored; head blackish, getting 

 lighter posteriorly; tentacles translucent, dark 

 on the edges; an orange yellow spot at the 

 posterior internal base of the tentacles: foot 

 yellowish, thickly dotted with black above an- 

 teriorly; anterior edge nearly as dark as the 

 head; base of the foot thickly dotted with 

 orange on each of the middle, the dotting being 

 more sparse posteriorly, and entirely wanting 

 anteriorly. 



SHELL rather short, conical; surface smooth, 

 shining (when the dark foreign matter is re- 

 moved) lines of growth fine; whirls 5, not very 

 convex, suture imprest, base slightly perforate; 

 aperture dilated semicircular, labium slightly 



