S Chapman and G ah rid: 



Spisula parva. Petit sp., Pritchard and Gatliff, 190:5. Proc. 



R. Soc. Vict., vol. XVI. (N.8.), pt. 1., p. 1U8. 

 Mactra trigonella, Lam. Lamy, 1914, Bull. Mus, Nat. 



Hist., p. 205. 

 Sjiisula parva. Petit sp., Chapman, 1916, Rec. Geol. Surv. 



Vict., vol. III.,pt. 4, p. 402. 

 Spisula trigo?iella. Lam. sp., Hedley, 1917, Proc. Linn. Soc. 

 N.S. Wales, vol. XLI.,p. 692. 

 Mr. Clias. Hedley has drawn attention to Dr. Laiiiy's identifica- 

 tion of Lamarck's specimens of " Mactra trigonella " in the Paris 

 Museum with our well-known Spisula parva. Petit sp. 



Typical examples of this shell are here moderately common. It 

 is well distributed round the coast, especially on muddy and sandy 

 flats near the mouths of tidal rivers. In the Sorrento bore this 

 species was found at a depth of 489 feet, associated with 'Nassa 

 lahecula and Rotalia heccarii. 



Class GASTEROPODA. 



Fam. CYCLOSTKEilATIDAE. 



Genus Pseudoliotia, Tate. 

 Pseudoliotia micans, A. Adams sp. 



Cyclostrema micans, A. Adams, 1850, Proc. Zool. Soc. Lond.. 



p. 43. Dennant and Kitson, 1903, Rec. Geol. Surv. 



Vict., vol. I., pt. 2, p. 145. 

 Pseudoliotia micans, A. Adams sp., Pi-itchard and Gatliff, 



1902, Proc. R. Soc. Vict., vol. XIV. (N.S.). pt. II.. p. 



102. 

 One small, but typical specimen found. 



Fam. LiTTORINIDAE. 



Genus Diala, A. Adams. 

 Diala lauta, A. Adams. 

 Diala lauta, A. Adams. 1862, Ann. Mag. Nat. Hist., ser. 3, 

 vol. X., p. 298, No. 5. Pritchard and Gatliff. 1902. 

 Proc. R. Soc. Vict., vol. XIV. (N.S.), pt. II., p. 88. 

 One specimen found. 



Genus Tatea, T. Woods. 

 Tatea rufilabris, A. Adams sp. 

 Diala rnjilahris, A. Adams, 1862, Ann. Mag. Nat. Hist., ser. 

 3, vol. X.,p. 298. 



