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10. Terebra angulosa, spec. nov. Plate viii., fig. 13. 



Shell stout, pyramidal, with a somewhat acuminate spire end- 

 ing in a papillary pullus of two turns, the extreme tip of which 

 is sub-erect. 



The three anterior whorls are flatly convex, faintly obliquely 

 plicate ; the next four whorls sub-angulate in the posterior-third, 

 stoutly wrinkled transversely ; the anterior whorls are a little 

 swollen over the suture and obscurely depressed in the posterior- 

 third, sigmoidally flatly wrinkled and striated transversely, and 

 neatly and closely striated spirally. 



Dimensions. — Length of 14 whorls, 53 ; breadth of last 

 whorl, 12. 



Locality. — Well-sinking, Murray Desert. 



The shape of the whorls and the outline of the spire, if they 

 prove constant, distinguish this species from T. simplex. 



11. Terebra additoides, Tenison Woods. 



Reference. — Proc. Roy. Soc. Tasmania for 1876, p. 95. 



The pullus is sub-cylindrical and consists of a.bout four narrow 

 convex whorls. The posterior of the ordinary Avhorls have a nar- 

 row ante-sutural band, whilst the anterior ones are sub-angulated 

 coincident with the constriction, all are plicated ; the plicae are 

 very narrow, acute, slightly bent, sub-nodulose near the suture of 

 the posterior whorls or on the angulation of the anterior ones ; 

 the interspaces between the plicae are finely and closely reticulated. 



Dimensions of specimen having 13 whorls: — Length, 24; 

 breadth of last whorl, 5. 



Localities. — Table Cape (T. Woods and R. 21. Johnston /) ; 

 River Murray Cliffs near Morgan. 



The specific name indicates its affinity with T. addita, Des- 

 ■hayes. 



12. Terebra leptospira, spec. nov. Plate" viii., figs, i^a-b. 



Shell slender, elongate, of many narrow whorls of slow increase, 

 ending in a pyramidal pullus of four rapidly diminishing rounded 

 turns. 



Ordinary whorls flat, the posterior ones with straight, slender, 

 angular plications ; diminishing to stout oblique wrinkles on the 

 anterior whorls, which are slightly depressed at the posterior 

 one-third. 



Dimensions. — Leng"th of 17 whorls, 27; breadth of last whorl, 4. 



Locality. — Lowei' beds at Muddy Creek. 



13. Terebra convexiuscula, spec. nov. Plate x., fig. 4. 



Shell narrowly pyramidal ; whorls convex ; suture distinct ; 

 -transversely plicate ; plicae curved, thick, subangular, coronated 

 .at the suture, about 30 on the last whorl. 



Dimensions. — Length of 9 whorls, 6; breadth of last whorl, 15, 



Locality. — Upper beds at Muddy Creek. 



