Notes on South African A/O////MV/. 



149 



Little Namaland, has just come to hand, which appears to be quite 

 conspecific with the subfossil- Type, and as it includes two spirit- 

 specimens, in excellent preservation, it has enabled me to present 

 particulars of the animal. 



In these shells the spire is comparatively less produced, their 



47 



B 



TEXT-FIGURE 2. 



Anatomy of Trigonephrus (jypsinus (M. & P.). 



A. Pallial organs. 



B. Teeth from the radula, x 200. 



C. Eeproductive organs, x 3. 



form being globose, rather than elongate-globose, but they agree 

 with the Type in its two main characteristics, the very convex whorls 

 and peculiarly small, rounded aperture. The colour is uniform 

 pinkish drab, except the peristorne and thin callus, which are pale 

 rosy brown. The sculpture, on all but the 1|- apical whorls, 

 consists of extremely faint, close, transverse striation, and shows 

 considerable malleation, especially on the upper portion of the last 

 li whorls. 



