74 PROCEEDINGS OF THE ACADEMY OF [1899. 



Berrymau's Place, three miles northeast of Alto, Cherokee Co., 

 Texas, and a good series of L. singleyi Harris, from Bald Mound, 

 nine miles southeast of Jewett, Texas, proves that the form referred 

 to as a variety of L. singleyi is a distinct species. It is smaller 

 and more slender, the specimen in hand is 20 mm. in length, with 

 a max. diam. of 6 mm., while L. singleyi is 37 mm. in length with 

 a max. diam. of 12 mm,, both species have about the same number 

 of whorls (9 to 10), the revolving ridges are somewhat rugose 

 below the suture, and the small alternating raised lines more prom- 

 inent than in L. singleyi. 

 Latirus sexcostatus n. sp. Plate I, fig. 9. 



Shell fusiform, spire somewhat longer than the aperture and 

 anterior canal, whorls nine, the three apical whorls smooth, the 

 other with six longitudinal ribs, which are crossed on the spiral 

 whorls by two prominent revolving ridges, on the body whorl the 

 number is about ten, the interstices have numerous fine revolving 

 raised lines and fine longitudinal lines of growth, interior of the 

 outer lip with six short ridges and the columella Avith three small 

 plaits. Length of type 14 mm., greatest diam. 6 mm., a larger 

 but imperfect specimen has a diam. of 8 mm. and a probable 

 length of 18 or 19 mm. 



The type with eight additional specimens was collected by the 

 writer from the Lower Claiborne at "Alabama Bluff','' Trinity 

 river, Houston Co., Texas. Specimens were also collected at 

 Hurricane Bayou, Houston Co., Texas. 

 Metula brazosensis n. sp. Plate II, fig. l. 



Shell subfusiform, whorls six, apical whorl smooth, the three 

 prominent varices are continuous from the body whorl to the smooth 

 apical whorl, between the varices are numerous small longitudinal 

 ribs that become obsolete toward the base of the body whorl, these 

 are crossed by numerous fine revolving raised lines, inner margin 

 of the outer lip but slightly crenulated. Length 8 mm. , greatest 

 diam. 3^ mm. 



Two specimens collected by the writer from the Lower Claiborne 

 at Black Shoals, Brazos river, Burleson Co., Texas. 



The localities, "Brazos river, about one mile below the Milam- 

 Burleson county line," and " Collier's Ferry, Burleson Co.," given 

 by Prof. Harris (Proc. Acad. Nat. Sci., 1895, pp. 73, 78, 79) 

 are the same as Black Shoals. 



