74 PAUXULUS. 



do^vllwards, forming a narrowly rounded base; it ascends to 

 the aperture and is somewhat excavated within the umbilicus, 

 which becomes a mere perforation beyond the last whorl. 



The aperture is shaped like that of F. capensis, ochraceous 

 within, and has three lamellae as in that species. The angular 

 lamella is rather long and a little impressed or sinuate in the 

 middle. Parietal lamella enters deeply. The columellar 

 lamella is strong, horizontal, and enters about a half whorl. 

 There are three folds a short distance within the outer lip : 

 the upper palatal fold is very long, its inner end curving 

 downward; interpalatal fold small (often twinned) ; lower 

 palatal fold long, its inner end not visible in a directly face 

 (ventral) view. The peristome is white, thin and well ex- 

 panded, the margins connected by a thin parietal callus. 



Length 5.9, diam. above aperture 2.8 mm. ; 9I/2 whorls. 

 Type. 



Length 5.2, diam. above aperture 2.9 mm. ; 8I/2 whorls. 



Length 5.2, diam. above aperture 2.6 mm. ; 9 whorls. 



Length 7.1, diam. above aperture 3.1 mm. ; 10 whorls. 



South Africa: Seal Rock, opposite Dyer Island, Cape 

 Province. Type 144264 ANSP., collected by Herbert Lang. 



Fauxidus hurnupianus Pilsbry, Nautilus, vol. 41, Jan., 

 1928, p. 108; Ann. Natal Museum VI, part 2, 1929, p. 300, 

 pi. 20, f. 1-3. 



This snail has the shape, texture and color of F. capensis 

 (Kstr.), and is about the size of the small race of that species 

 from Port Elizabeth. It differs by the larger apertural 

 lamellse and folds, which have more the form of those teeth 

 in F. pamphorodon (Bens.), the upper-palatal fold being 

 laminar, entering deeply and descending, and the lower- 

 palatal is prolonged inward. 



The shell is whitish to the eye but under a lens is seen to 

 be delicately tinted pink or bluish, variously but sparsely 

 maculate, and sometimes having an ochraceous band below 

 the suture, such as occurs in certain shells of F. capensis. Of 

 the 18 examples seen, only one exceeds 6 mm. in length. 



This species was found with specimens of F. capensis 7 to 



