Tertiary Fimiia. 241 



Fam. VOLUTIDAE. 



Genus, Lyria, Gray. 



Lyna acuticustata, sjj. nov. 



Description. — Shell long-ovate, volutifoym; apically pointed, 

 -anteriorly truncated; whorls moderately high, entirely costate, 

 the acute riblets numbering about 18 on the body whorl. Proto- 

 conch small, as compared with L. stiiiiacuticostata, Prichard,! and 

 consisting of two volutions. 



The above description is completed from an example in the 

 Dennant collection, from Bird Rock, Torquay, Victoria. 



Dimensions. — The limestone specimen measured when complete, 

 circ. GO mm. ; the Torquay marl specimen, 42 mm. 



Coinparifioii. — In general shape and acute apex this species is 

 related to L. semiacuficosfate from Table Cape, but differs essen- 

 tially in having continuous costation. It is clearly an ancestor 

 .of the living Lyria mitraeformis,' from which it differs in the 

 more numerous costae and slightly narrower shell. 



Cudmore Collection. 



Genus Voluta, Linne. 

 Valuta valiflirnafata. Tate. 



Valuta alficastata, Tate, 1889, Trans. R. Soc. S. Austr., vol. 

 XI. p. 122, pi. V. Fig. 7. 



Valuta valid icastata, Tate (nom. mut.), vide Dennant and Kitson, 

 ■Cat. Cain Foss., 190:j, p. 100. 



Several casts of young and median grown sh,ells are found here. 

 Although occurring in the Balcombian, in Victoria, it is more 

 typical of Janjukian strata, both tliere and in South Australia. 



Cudmore Collection . 



Valuta cf. oncillaides, Tate. 



Voluta ancilloides, Tate, 1889, Trans. R. Soc, S. Austr., vol. 

 XI. p. 126, pi. III., Fig. 7. 



A cast of a shell of the above specific type occurs in the hard 

 limestone from Ooldea. V. ancilloides is a well-known Table Cape 

 fossil. 



Chandler Collection. 



