40 THE NAUTILUS. 



II. No trace of a keel on the convex face of the basal lip. 



a. Umbilicus small, showing the penultimate whorl only; 

 striation fine. P. Cragini. 



a 1 . Umbilicus wide, showing all the whorls within, cylindri- 

 cal and wide at the bottom where the first whorl is 

 prominently seen ; striation coarser than in Cragini, 

 base more convex, spire Hatter; basal lip somewhat 

 sinuous ; teeth stronger, the upper one square, the basal 

 tubercular; diam. 11-12 mm. P. neghcta n. sp. 



The type locality of P. vultuosa is " Arkansas and Texas." This 

 is rather vague ; but I have collected the typical form in Calcasieu 

 Parish in southwestern Louisiana and at Houston, Texas. Mr. 

 Singley has sent it from Lee Co., Texas. 



P. vultuosa Henrietta (Mazyck, January, 1878) was described 

 from " Eastern Texas." Forms probably referable to it, though 

 certainly not typical, have been sent by Mr. Singley from Robertson 

 Co., and Wheelock, Texas. 



P. vultuosa Copei (Wetherby, March, 1878) was from Hardin 

 Co., 20 miles N. of Beaumont, eastern Texas. I have it from 

 Angelina Co., also (McDaniel). 



P. Cragini (Call, Dec. 1886) originally came from the banks of 

 Chetopa Creek, Neosho Co., southeastern Kansas. Mr. Jas. H. 

 Ferriss collected it at Tliayer, also in Neosho Co. Mr. Simpson 

 got specimens at McAllister, in the eastern part of Indian Territory, 

 and it extends south to Wood Co., in northeastern Texas. The sole 

 locality in Arkansas is near Texarkana on the Red River (Ferriss). 

 P. Cragini is easily distinguished from all forms of vultuosa by the 

 total absence of a keel on the face of the basal lip. It is brown and 

 glossy, usually between 7^ and 9^ mm. diameter, and the umbilicus 

 is quite small. 



P. neglecta (n. sp.) has been in our collection from several locali- 

 ties and collectors for some years, under the names " vultuosa" 

 " Cragini" and "fallax var." It is much depressed, light yellow- 

 ish-corneous, glossy and finely rib-striate, with five closely coiled 

 whorls, the last much constricted and opaque behind the peristome 

 and a little deflexed in front. Aperture small, " dished " as in P. 

 frauditlenta, with a square tooth on the outer lip, bent inward, a 

 smaller tubercular marginal tooth on the basal lip, and an abruptly 

 bent parietal tooth, connected or almost connected with the colu- 



