IG 



ceston, not Franklin, at the Huon, where the surface rock is 

 volcanic tertiary dolerite. It would be very interesting to 

 ascertain if the tertiary formation is found at great depths in 

 the southern part of the continent, though a 'priori we might 

 conclude it would be so. I append a translation of the diagnosis 

 as the work is not generally accessible. Shell, ovately ventricose 

 somewhat thickened, smooth polished, produced anteriorly and 

 posteriorly, anterior prolongation the longest with two dorsal 

 tubercles; jjoslerior slightly reflexed ; spire with two con- 

 spicuous whorls ; aperture long, narrow, sinuous, canalicu- 

 late at each end ; the posterior slightly ascending ; external 

 lip toothed in its interior margin ; the posterior teeth small, 

 anterior somewhat inconspicuous and interrupted ; the inter- 

 nal lip with sharp transverse sulci on the inner margin, 

 the interstices thicker and longer anteriorly, basal sides 

 thickened at the extremities snd somewhat margined above. 

 Mr. Sowerby adds : — " A fossil cowry of very remarkable form, 

 bearing but a slight resemblance to any known species. It 

 slightly resembles C. Scottii, but distinguished by its length- 

 ened anterior and posterior canals, and by the two tubercles on 

 the posterior dorsal part of the anterior canal, and by the very 

 remarkable grooves or ribs of the inner edge of the inner lip. 



I may add that the fossil is not uncommon in the Victoria 

 Upper Tertiary, though it occurs in the lower beds as well, 

 having a wide range. 



10. T)'igonia semiujidulafa M'Coy. — I take this name from 

 the collections of the Geological Survey, Victoria, though no 

 diagnosis has been jDublished. The species is very common 

 in the middle tertiaries of Victoria, and is easily recognised 

 by half the ribs on the shell radiating, and half being 

 concentric. In this respect it resembles a fossil British 

 Oolite species, Trigonia costata. 



Corlula sulcata, Lamarck. — This species is still living 

 on the west coast of Africa, as Prof. M'Coy (see Annals of 

 Nat. Hist, for 1866) has pointed out. It is very characteristic 

 of the Australian Lower Cainozoic. It is figured in Wood- 

 ward's Manual, pi. 23, fig. 2 ; there are also excellent figures in 

 Martini (Chemnitz) pi. 172, fig. 1668 to 1671. Habitat of 

 living species, Senegal, about lat. 16 N". 



Voluta Hannafordia, M'Coy, Ann. Nat. Hist., vol. XVIIL, 

 new series, p. 367. 



Voluta antiscalaris, M'Coy, loc. cit. 



Voluta macroptera, M'Coy, loc. cit. — Several specimens, but 

 few old enough to manifest the peculiar extended outer lip. 

 All these volutes are well known forms in the Australian L, 

 Cainozoic. 



