1871.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA. 91 



Fam. PyramidellidjE. 



24. ClNGULINA SPINA. 



Turritella spina, Crosse et Fisch. Journal de Conch. 1864, p. 347; 

 1865, p. 44, pi. 3. f. 13, 14. 



Dredged at " Sow and Pigs" reef {Brazier). 



25. Mathilda elegantula, Angas, P. Z. S. 1871, PI. I. f. 8. 



An acuminate semitransparent shell with fourteen whorls, each 

 having three rounded transverse ribs, the interstices finely longitu- 

 dinally striated. 



Dredged in Lane Cove, Port Jackson {Brazier'). 



26. Agatha australis, Angas, P. Z. S. 1871, PI. I. f. 9. 



An opaque white shell, with an acuminate spire and eight whorls, 

 having the columella furnished with a strong spiral plait. 

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



27. Odostomia simplex, Angas, P. Z. S. 1871, PI. I. f. 10. 



A very small white shell, with a sharp transverse columellar plait, 

 and the outer lip elevately striated within. 

 Port Jackson {Brazier). 



28. Syrnola tincta, Angas, P. Z. S. 1871, PI. I. f. 11. 



A small, subulate, smooth, shining shell, irregularly banded and 

 marked with brown, having a single prominent columellar plait. 

 "Sow and Pigs" {Brazier). 



Fam. Eulimellid^e. 



29. Leiostraca lesbia, Angas, P. Z. S. 1871, PI. I. f. 14. 



A very slender, white, shining species, with a semiopaque band 

 below the suture. Larger and more solid than L. acutissima. 

 "Sow and Pigs" {Brazier). 



Fam. Cerithiopsid^;. 



30. Cerithiopsis clathrata, Angas, P. Z.S. 1871, PI. I. f. 12. 



A beautifully sculptured little species. 

 Dredged near the " Sow and Pigs" {Brazier). 



31. Cerithiopsis crocea, Angas, P. Z. S. 1871, PI. I. f. 13. 



Of an orange colour, with four ribs on each whorl, the intercostal 

 spaces finely longitudinally striated. 



Dredged off Camp Cove, Port Jackson {Brazier). 



32. Triforis granulatus, Ad. et Reeve, Voy. Samarang, pi. 1 1 . 

 f. 5. 



A small brown shell, with three strongly granulated ribs on each 

 whorl. 



Botany Bay. 



