17 



Cassidaria rcticulospira M'Coy. Exhibition reports, 1866. 

 Victoria. 



AnciUnriamucronata. Sowcrby Thes. Conch, pt. 63, pi. 211, 

 f. 11. — This species exists in Tasmania, one of tho very few- 

 forms surviving in the present series. There are trifling 

 variations of character, but not, I believe, of specific value in 

 the fossil form. 



DcntaJium lacteum ? (Biiriqm ?) Deshayes. Monograph of 

 Dentalium. Living in the Indian seas. This is a doubtful 

 identification. The fossil is very common, and may be a variety 

 only. Another smooth Dentalium is living, and is found fossil 

 in the Vienna basin. (D. entalis Linn.) but is very distinct 

 from our species. 



Turritella Tasinanica. n.s. (Diagnosis reserved for better 

 specimens.) 



Natica ovata Hutton, Catal. Ter. Mollusca of New Zealand, 

 p. 9, No. 61. — This is a Pliocene fossil of New Zealand. 



Natica Wintlei. n.s. 



Triton Abbot fi. n.s. 



Fusus Roblini. n.s. 



Terebra simplex, n.s. 



Typhis WCoiji. n.s. 



Solecurtiis Legrandi. n.s. 



Crasatella oblong a. n.s. 



Crasatella aphrodina. n.s. 



Lyonsia Agnewi. n.s. 



Venus Allporti. n.s. 



Besides fragments of a large Trochus, Haliotis, Corbis, 

 Waldheimia, too imperfect for identification. 



Polyzoa are few in number, as well as Forarainifera, bi*^ 

 this must not be wondered at, as the deposits are evidently 

 transported from a distance. They are much broken and 

 mingled with coarse fragments of quartz and ferruginous 

 gravel, which seems to have comminuted the softer and smaller 

 particles into fine mud. This mud has even preserved the 

 colour of the shells at times. Thus in the Solecurtus Legrandi, 

 which is very closely allied to the existing but larger species 

 in Brisbane, the pink colour of the shell is quite perceptible. 



The corals of the deposit are not numerous, but of a larger 

 size than any found in Australia. I have found three des- 

 cribed species and two unknown hitherto. They are — 



Placotrochus deltoideus. Duncan, Journal of Geological 

 Society, vol. xxvi., p. 300, et. seq. 



Sphenotrocus excicus. Duncan, loc. cit. 



Conotrochus M'Coyi. Duncan, loc. cit. 



The above are well known Australian Lower Cainozoic 

 forms. They are pedicellate corals and very characteristic. I 



