54 THE NAUTILUS. 



Alt. 9, diam. 14 mm. I 



Cave Creek Canon, Chiricahua Mts. Cotypes in collections of 



J. H. F. and A. N. S. P. Found alive, buried deeply in rotten shale 



about the base of cliffs near the stream. * 



This species differs from all the forms of 0. strigosa by its radially 



costulate apical whorls and greenish cuticle. 



LIST or ALABAMA SHELLS COLLECTED IN OCTOBEE AND 

 NOVEMBER, 1903. 



A. A. HINKLEY. 



Family LiMN.iEiD.iE (continued from August number). 



Planorbis trivolvis Say. A very few specimens found in same 

 location as Viviparus, near Decatur, Ala. 



P. bicarinatus Say. A single specimen taken from the Coosa 

 River, near the railroad bridge, Farmer, Ala. 



P. dilatatus Gould. Coosa River, Farmer, and Wetumpka. 

 Very few found. 



P. tantillus Pilsbry. Coosa River, Wetumpka. Found on rocks 

 in swift water, generally on the under side; they are so small that col- 

 lecting them was tedious, though they were abundant in places. 



N. g., n. sp. Same location as above. 



FAMILY ANCYLID^. 



Ancylus rhodacmeVf&WieT. A common species in the Coosa River 

 at Fort William Shoals, Wetumpka and vicinity. 



FAMILY HELICin^. 



Polygyra pustuloides Bland. Blount Springs, one specimen at 

 Tallassee, Ala. 



P. tridentata tennessensis, W. and P. Warrior, Tallassee. Larger 

 than the northern form of tridentata. 



P. injiecta Say. Blount Springs, Tallassee, Warrior and Mil 

 stead. 



P. obstricta caroUnensis Lea. Wetumpka and Tallassee. 



P. appressa perigrapta Pils. Tallassee, Warrior, Milstead, 

 Farmer and Montevallo. 



