1903.] NATURAL SCIENCES OF PHILADELPHIA. 771 



described and figured by Fischer and Crosse, nor of the spiral stria- 

 tion. It seems, therefore, advisable to describe the Huingo form. 



Glandina victoriana n. sp. PL XLVII, figs. 4, 4a, 46. 



Shell cylindric-oblong, slender, rather thin; very glossy, fleshy-brown 

 marked at wide intervals with opaque-white longitudinal lines. Sculp- 

 tured throughout with close, regular, smooth and rounded rib-striae, 

 as wide as their intervals, and somewhat denticulating the suture. 

 Spire convex-conic, the apex obtuse. Whorls 7, the first 3 smooth. 

 Aperture about half the length of the shell, narrowly acuminate. 

 Outer lip arched forward a little in the middle. Columella concave, 

 oblique below, and truncate as usual. 



Leng-th 37, diam. 11.7, length of aperture 19 mm. 



Length 44, diam. 14, length of aperture 21 mm. 



Canon 4 miles west of Victoria, State of Tamaulipas. Types No. 

 85,918, A. N. S. P., collected by S. N. Rhoads, 1903. 



This species is distinguished by its narrow elongate shape, smooth, 

 regular and close riblets without spiral lines, and the occasional white 

 lines marking temporary growth-arrests. It is related to G. texasiana, 

 but differs in the markedly elongate shape, etc. 



Glandina rhoadsi Pilsbry. PI. XLVII, figs. 3, 3a, 36. 

 Proc. Acad. Nat. Sci. Phila., 1899, p. 395. 



Diente, near Monterey, Nuevo Leon. Types No. 77,172, A. N. S. P. 

 An additional lot, collected by Mr. Rhoads in 1903, shows some varia- 

 tion in the shape of the columella, which may be either nearly straight 

 below or decidedly curved. The darker streaks mentioned in the 

 original description are never conspicuous, and often are seen only on 

 close examination. The striation is not clearly enough indicated in 

 fig. 3. 



Length 54, diam. 19, length of apertme 29 mm. 



Length 50, diam. 17, length of aperture 25 mm. 



Length 53, diam. 18.5, length of aperture 26 mm. 



Length 47, diam. 17, length of aperture 25 mm. 

 Glandina delicata n. sp. PI. XLVIII, figs. 1, la, 16. 



Shell pale yellowish-corneous, thin and delicate; fusiform, tapering 

 toward both ends. Surface closely rib-striate, the costulse about as 

 wide as the intervals, and slightly weaker at the base. Spire tapering 

 to a rather small apex, the first 3 to Zh whorls smooth. Aperture 

 more than half the shell's length, the outer lip thin, but slightly arched 

 forward, receding at base. Columella short and nearly straight, 

 abruptly truncate. 



Length 23. diam. 9, length of aperture 14 mm. 



