103 



The present writer is almost inclined to regard this as a 

 variation of V. sirophodon (or vice versa) brought about by the 

 extremely favourable conditions under which it lived. It has 

 a thicker shell, the callus spread over the columella extends some 

 distance beyond on to the body-whorl, from which it is sharply 

 defined ; the costa? are almost obsolete, but each has a pronounced 

 pointed tubercle at the subangulate periphery of the whorls. One 

 specimen in the Museum has five columellar plaits — four normal 

 and one subsidiary, the latter becoming developed as the gerontic 

 stage was attained. 



Dimensions. — Length 35 mm.; breadth 18"5mm. ; length of 

 aperture 25'5mni. 



Form, and Loc. — Eocene: Victoria, South Australia, and Tasmania. 



88983. One specimen ; from Table Cape. Purchased. 



G. 9129. An example of the adult; from Murray river, near 



Adelaide. Presented hy William Evans, Esq. 



G. 9347. A series exhibiting growth from the brephic to the 

 gerontic stages ; from Muddy Creek. Purchased. 



Voluta (Aulica) lirata, Johnston. 



[Plate IT. Fig. 12.] 



1880. Vohita lirata, Johnston, Proc. Eoy. See. Tas. 1879, p. 37. 



1888. Voluta allporli, Johnstoii, Geol. Tasmania, pi. xxx. tig. 10. 



1889. Voluta lirata, Tate, Trans. Eoy. Soc. South Aust. vol. xi. p. 130, 



pi. ii. fig. 4. 



Shell fusiform, elongate; protoconch large, turbinate, or trochoid, 

 composed of three and a half turns, inconspicuously spirally lineate 

 and, anteriorly, longitudinally striated ; whorls of the spire concave 

 posteriorly in the neighbourhood of the suture, and convex towards 

 the middle, ornamented by undulating, unequal, closely-set liras 

 accentuated at the periphery, and absent on the anterior half of 

 the body- whorl in the adult ; aperture elongately oval, contracted 

 behind and broad in front; columella curved towards the middle, 

 furnished with four well-developed oblique plications. 



Special attention may be directed to the vestiges of coloration, 

 which do not appear to have been previously described in this 

 species. As will be seen on reference to the figure now given 



