157 



7. Peristernia affinis, sjyec. nov. Plate xi., fig. 7. 



Shell like P. transenna but narrower, with strong angular 

 plications, which impart a more convex outline to the whorls. 

 Whorls six, apex decollated ; bodj whorl with twelve trans- 

 verse ribs, acutely nodulate at the intersection with the lirae. 

 Aperture oval ; columella with a strong oblique twist ; canal 

 shorter than in P. transenna, oblique and slightly twisted ; 

 outer lip varicosely thickened a little beyond the edge ; stoutly 

 lirate within. 



Length, 16*5 ; breadth, 7 ; length of aperture and canal, 9. 



Locality. — Table Cape {B. M. Johnston !) . 



8. Peristernia transenna, T. Woods. Plate xi., fig. 10. 



Fusus transenna, T. Woods, Proc. lioy. Soc. Tasm. for 187&, 

 p. 94. 



Shell ovately fusiform with a flat spire, apex wanting ; 

 whorls five, flatly convex, subangulate above, equally and 

 widely latticed with arched transverse and spiral threads, 

 raised into short, small conical nodulations at the intersection, 

 the interstices cancellated. There are 24 transverse threads 

 on the body whorl, and five spiral threads on the middle por- 

 tion of the body whorl. 



Aperture oval ; columella with a strong oblique twist 

 ascending from the pillar ; canal wide, of moderate length, 

 oblique, and slightly reverted ; outer lip ? 



Length (incomplete), 20; breadth, 9; length of aperture 

 and canal, 12. 



Locality. — Table Cape {B. M. Johnston!). 



9. Peristernia lintea, spec. nov. Plate viii., fig. 11. 



Shell ovately fusiform, with a moderately high conical spire 

 ending in a blunt apex of one and a half sub-globose whorls ;. 

 whorls below the apex four, ornamented by fine spiral threads 

 with two or three striae in the interspaces, crossed by slender 

 arched growth lines and very fine striae ; last whorl sometimes 

 with short undulations at the periphery. 



Outer lip thin, lirate within ; columella with a conspicuous- 

 oblique fold at the top of the canal succeeded by two or three 

 small ones. 



Length, 28 ; breadth, 10 ; length of aperture, 9; of canal, 11. 



Locality. — Lower beds at Muddy Creek. 



This species is distinguished from Fasciolaria Tenisoni by its 

 more ventricose body whorl, fine spiral ornament, and slender 

 bent canal. 



10. Peristernia apicilirata, spec. nov. PI. ix., fig. 14. 



Shell small, elongate-fusiform, spire high, of sub-gradated 

 whorls, ending in a large hemispheric apex radially finely 



