1913.] NATURAL SCIENCES OF PHILADELPHIA. 643 



Tomigerus cumingii 'Newcomb' Pfeiffer. 



Toniigeriis cumingii Newcomb MSS, Pfeiffer, Zeitschr. f. Malak., 1849, 

 p. 67. Pilsbry, Man. Conch. (2), XIV, p. 108, pi. 7, figs. 64-66. 



About twenty dead specimens were taken at Ceara-Mirim and 

 three from "the coast region of the State of Ceara" were sent by 

 Mr. Rocha. 



Tomigerus pilsbryi n. sp. PL XXIII, figs. 9, 10. 



Shell compressed-ovate, greatly distorted as if by pressure on the 

 apertural side, imperforate, with a long, straightened umbilical 

 suture ending in a deep excavation behind the columellar lip; first 

 1| whorls smooth, and, beginning on the second whorl, everywhere 

 sculptured with very fine, irregular, retractive striulse, most marked 

 on the last half whorl, which shows, under a glass, a slight tendency 

 to the corrugation which is characteristic of several species of the 

 genus; spire conic, apex rather acute. Whorls 4f, very slightly 

 convex, the last greatlj-- distorted, with an oblique groove behind 

 the outer lip and another behind the basal lip parallel to the umbilical 

 suture; sutures well defined. Aperture vertical, somewhat trian- 

 gular, with three lamellae on the parietal wall, the upper beginning 

 in a slight thickening of the upper extremity of the peristome and 

 entering sinuously and obliquely, three on the sloping columellar 

 margin and a large, obliqueh' entering, plate-like fold within the 

 outer lip, its upper end bifid; peristome broadly expanded and 

 reflected, white; color slaty-white, shining, with a narrow brown line 

 marking the last two turns of the suture, a faint, narrow, brownish 

 band distinguishable on the last half turn of the body whorl and a 

 pale brown border along the umbilical suture, continued radially 

 upon the base some distance back of the basal lip. 



Alt. 13, greatest diam. 17, least diam. 9.25 mm. 



A single specimen of this species was taken at Ceara-Mirim. It is 

 related to T. Icevis von Ihering in being nearly smooth and colorless 

 and to T. rochai von Ihering in general contour, but it is larger than 

 the former and differs from the latter in its lower spire and less 

 angular aperture. The upper parietal fold is even more closely 

 united to the peristome than in T. clausus. It differs from all known 

 species by its much more compressed and distorted shape. 



Genus ANOSTOMA F. de Waldheim. 



Anostoma depressum Lamarck. 



Lamarck, An. s. vert., VI, pt, 2, 101. Pilsbry, Man. Conch. (2), XIV, p. 

 110, pi. 6, figs. 48-54. 



This species was rather common at Baixa Verde and a single dead 



