Victorian Fossils. 15 



Observations. — The separation of the whorls in this species is 

 not so pronounced as in the genotype, Solutofusus carinatus, 

 Pritchard,28 but this character is too decided in the present form for 

 its inclusion in Fusinus (formerly Fusus, pars). The slightly tuber- 

 culate costae of the earlier stage of the shell is suggestive of Tate's 

 Fusus hexagonalis,^^ but the rounded later whorls and their canalicu- 

 lation easily separates the two forms. It is worth noting that Soluto- 

 Jusus carinatus and Fusus (Fusinus) hexagonaUs^ Tate, agree in hav- 

 ing an exsert protoconch, whilst the present species has the apex 

 flattened; so that that feature does not seem to be constant in Soluto- 

 Jusus. 



Occurrence. — Janjukian (Miocene). Curlewis, near Geelong. Col- 

 lected and presented by the late Mr. J. H. Young. There is a related 

 specimen with ornament closer to Fusinus hexagonalis, but with 

 ♦canaliculate sutures, in the Dennant collection, from Shelford. 



Fam. VOLUTIDAE. 



Genus Lyria, Gray. 

 Lybia acuticostata, Chapman. (Plate III., Figs. 22, 23.) 



Lyria acuticostata, Chapman, 1920. Proc. Roy. Soc. Vict., 

 vol. xxxii. (N.S.), pt. ii., p. 241. 



Observations. — Since the above-mentioned description was 

 written, I have been able to identify some smaller and rather rare 

 shells of the genus from the Balcombian, with the larger and better 

 developed Miocene forms. These smaller forms have all the essen- 

 tial characters of the Ooldea and Torquay fossils, but are thinner in 

 build, though otherwise typical; they are therefore included here 

 under the same trivial name, and may be regarded as ancestral and 

 <ieep water forms (of Balcombian age), of the Ooldea shells (of the 

 Janjukian). 



Dimensions. — Length of a full-grown Balcombian shell (from 

 Balcombe Bay), 23 mm. Length of a shell from Torquay, 42 mm. 

 Length of a Janjukian shell from Ooldea, circ. 60 mm. 



Occurrence.^ — Balcombian (Oligocene). Balcombe Bay and Grice's 

 Creek, Port Phillip. Janjukian (Miocene), Bird Rock Cliffs, Torquay, 

 Victoria; and Ooldea, South Austrilia. 



Genus Voluta, Linne. 



Sub-genus AULICA, Gray. 



Voluta (Aulica) sexuaplicata, sp. nov. (Plate III., Fig. 24.) 



Description. — Shell long-ovate with hemispherical protoconch of 

 two and a half turns, moderately large and turbinoid. Apical angle 

 of shell 33°; consisting of four depressed convex whorls, with im- 



28. Proc. Roy. Soc. Vict., vol. xi., pt. i., 1898, p. 102, pi. vii. fig's. 1, la, 2. 



29. Trans. Roy. Soc. S. Australia, vol. x., 1888, p. 139, pi. iii., figs. 15a, b. 



