18 MR. G. F. ANGAS ON NEW AUSTRALIAN SHELLS. [Jail. 3, 



20. Clathurella bicolor, 11. sp. (Plate I. fig. 20.) 



Shell somewhat acuminately turreted, rather solid, pale ash-colour, 

 with the base of the last whorl chocolate-brown ; whorls 7\, rounded, 

 somewhat angulate in the middle, longitudinally ribbed and concen- 

 trically narrowly ridged, slightly nodulous at the points of inter- 

 section ; spire acuminate, with the apex sharp and of a brown colour ; 

 aperture small, ovate, stained above and below with brown interiorly ; 

 outer lip thin, denticulate within and strongly variced behind ; pos- 

 terior sinus broad and rather deep. 



Length 3J lines, breadth 1 line. 



Hab. Dredged near the " Sow and Pigs," Port Jackson {Brazier). 



21. Clathurella brazieri, n. sp. (Plate I. fig. 21.) 



Shell elongately turreted, rather solid, pale brown, a little darker 

 on the lower whorl and at the apex ; whorls 7, angulated at the 

 upper part, longitudinally plicate and transversely finely ridged ; 

 spire convexly acuminated ; aperture elongately ovate ; outer lip 

 thin, simple within ; columella arcuate ; channel short, sharply re- 

 curved ; posterior sinus wide, not very deep. 



Length 3 lines, breadth | line. 



Hab. Dredged near the "Sow and Pigs" (Brazier). 



22. Clathurella albocincta, n. sp. (Plate I. fig. 22.) 



Shell ovately fusiform, moderately solid, whitish, the last whorl 

 stained with brown, with a broad opaque white band in the centre ; 

 whorls 5, rounded, longitudinally ribbed with numerous regular no- 

 dulous ribs, and latticed with concentric ridges ; aperture ovate ; 

 outer lip thickened, dentate within ; posterior sinus narrow. 



Length 1\ lines, breadth 1 line. 



Hab. Dredged near the " Sow and Pigs," Port Jackson (Brazier). 



23. Clathurella bilineata, n. sp. (Plate I. fig. 23. j 



Shell ovately turreted, moderately solid, pale straw-colour or light 

 brown, nearly white around the aperture and at the base, with a 

 narrow brown band just below the suture, and a second between the 

 periphery and the base of the last whorl ; whorls 6, angulate at the 

 upper part, coarsely longitudinally ribbed and transversely ridged, 

 the interstices very finely decussately striated ; aperture acuminately 

 ovate ; outer lip arcuate, contracted towards the base, and thickened 

 behind ; posterior sinus very shallow. 



Length 2 lines, breadth | line. 



Hab. Dredged near the " Sow and Pigs," Port Jackson (Brazier). 



24. Fossarina brazieri, n. sp. (Plate I. fig. 24.) 



Shell depressedlv turbinate, narrowly umbilicate, moderately solid, 

 ashy grey, more or less blotched here and there with purplish brown ; 

 whorls 3£, irregularly spirally ridged (one at the periphery, and one 

 near the suture being more prominent than the others) and trans- 

 versely striated ; sutures strongly impressed ; spire slightly elevated, 



