104 



THE NAUTILUS. 



Valuta pinguia Dillw., Cat. Recent Shells, i, 516, 1817. 

 Oliva ( Olivancillaria) brasiliana Tryon, Manual Conch., v, 

 90, pi. 36, f. 88. 



TWO NEW VAKIETIES OF VALVATA. 



BY E. G. VAN ATT A. 



VALVATA TRICARINATA INFRA CARINATA n. var. fig. 1, 2. 



Shell globose, depressed, translucent, early whorls orange 

 colored, body-whorl greenish gray, spire moderately elevated, 

 apex obtruse, suture linear, whorls 3, rapidly increasing, last 

 whorl flattened above, with an impressed line near the suture, 

 slightly angular at the shoulder, periphery rounded, surface 

 polished, provided with irregular growth lines. Umbilicus 

 wide, deep, funnel-shaped, surrounded by a strong carina. 

 Aperture oblique, orbicular, slightly angular at the suture and 

 base, parietal wall short, lip thin. 



Alt. 2.53 diam. 3.48 apert. alt. 1.74 diam. 1.55 mm. 



Type in the collection of the Academy of Natural Sciences 

 number 12087 from White Pond, New Jersey, collected by Dr. 

 H. A. Pilsbry and Mr. S. N. Rhoads in 1895. Also in the 

 collection from Hamilton, Ontario (Robert Walton); Mohawk, 

 New York (Dr. James Lewis); Post Pliocene at Halcyon Lake, 



