1899.] NATURAL SCIENCES OF PHILADELPHIA. 75 



Metula gracilis n. sp. Plate II, 5g 3. 



Shell slender, fusiform, Avhorls eight, convex, the three apical 

 whorls smooth, the others cancellated by about 29 revolving ridges 

 on the body whorl, 10 on the spiral whorls and about 38 longitu- 

 dinal ribs, forming at their junctions small nodules, body whorl 

 with a prominent varix, aperture narrow, contracted at the anterior 

 into a moderate canal, lip thickened, interior with 14 teeth-like 

 ridges. Length 14 mm., greatest diam. 6 mm. 



One specimen collected by the writer from the Lower Claiborne, 

 at Alabama Bluff, Trinity river, Houston Co., Texas. 



Metula subgracilis n. sp. Plate II, fig. 2. 



Shell similar to the preceding, but with 6h whorls, only 1^ of 

 the apical whorls being smooth, slightly convex and showing a 

 slight angle below the sutures, spiral Avhorls showing 8 and the 

 body whorl about 24 revolving ridges, the first two below the 

 suture more prominent than the others, longitudinal ribs of uni- 

 form size and about 40 in number, anterior canal much shorter, 

 lip thickened, interior with 16 teeth -like ridges. Length 11 mm., 

 greatest diam, 5 mm. 



From the material collected by Mr, Thomas A, jNIorgan at 

 Jackson, Miss. Two specimens. 



Metula johnsoni (Vaughan). 



Phos joJtasoni Vaughan. Ball. 142. U. S. Geol. Sar., 36, pi. 3, fig. 3, 

 1896. 



One specimen of this species was also found by the Avriter at 

 Montgomery, Grant Parish, La. The specimen measures 20 mm., 

 a little smaller than the type, the specimen, though not entirely 

 perfect, indicates the presence of smooth apical whorls. 



Phos hilli Harris, var. magnocostatus n. var. Plate I, fig. 10. 



Shell elongate, spire acute, whorls eight, the three apical whorls 

 smooth, on the adjoining whorl the oblique longitudinal ribs are 

 small, gradually becoming larger. On the remaining four Avhorls 

 the longitudinal ribs are very large, six to each whorl; the entire 

 shell is covered with fine, somewhat alternating, revolving raised 

 lines, a ridge runs obliquely from the end of the anterior canal to 

 the middle of the peristome. Length 15 mm., greatest diam. 

 7 mm. 



One specimen (figured) collected by the writer from the Jack- 



