86 Pi-occedings of the Royal Society of Victoria. 



al)le in the interspaces, which carry, where they are about one 

 millimetre in width, five spiral stria:", distinct under a lens. At 

 the anterior end of the shell there is occasionally a finer inter- 

 calated spiral thread developed. The spiral ornament is crossed 

 transversely by lines of growth and by fine, strong, close-set 

 strife parallel to the lines of growth, thus completing the very 

 fine, close, and neat ornament of this species. 



Dimensions. — Type, length, 62 mm. ; breadth, 37 mm. ; length 

 of aperture and canal, 54 mm. : greatest breadth of aperture, 

 18 mm. A smaller specimen gives the following dimensions : — 

 Length, 51 mm. ; breadth, 31 nmi. ; length of aperture and canal, 

 43 mm. ; greatest breadth of aperture, 15 mm. 



Locality. — Eocene beds of Table Cape, Tasmania. Two 

 examples. 



Ol>servafio!is. — No species of this genus have hitherto been 

 described from our eocene beds, but the occurrence of the genus 

 at Table Cape has been recorded by Professor Tate in his paper 

 on the " Unrecorded Genera of the Older Tertiary Fauna of 

 Australia"* in the following language: — "This genus is repre- 

 sented in the eocene beds of Table Cape, Tasmania, by a large 

 species, known to me by two examples in the collection of Mr. T. 

 Atkinson ; it is undescribed." The specimens referred to above 

 by Professor Tate are those herein described. The elevated spire, 

 the shouldered body-whorl, and the strong spiral ornament, are 

 eminently characteristic of this species, and readily separate it 

 from any of the living species with which I am at present 

 acquainted. 



15. Siphonalia poblini, T. Woods. 



Fiisi/s 7-obIifii, T. Woods, P.R.S.Tas., 1876, p. 22, pi. i., fig. 7. 



Siphonalia rohlini, Tate, Gast. I., 1888, p. 143. 



Fnsus roblini, Johnston, Geo. Tas., 1888, p. 237, pi. xxix., fig. 8. 



16. Fasciolaria decipiens, Tate. 



F. decipiens, Tate, Gast. I., 1888, p. 150, pi. viii., fig. 1. 

 Observations. — Professor Tate has already recognised {loc. cit., 

 pp. 60, 61) that the Table Cape form of this species difters in 



* Proc. Roy. Soi-. N.S.W., 1S93. p. 173. 



