108 



spirally cornigatecl. It is difficult to define, from the specimen 

 in the Museum, the exact limits between the protoconch and 

 the shell in the brephic stage, but approximately at the junction 

 between the two the larval shell is longitudinally corrugated, 

 which suggests analogy with Vespertilio. The whorls of the spiie 

 proper envelop the suture, the junction being uneven ; they are 

 sculptured with delicate, undulating, irregular growth-lineations, 

 crossed by faintly discernible spiral strife ; body- whorl obscurely 

 tuberculose at the periphery, the broad nodulations being far 

 apart, and (judging from the figure given by Professor Tate ^) 

 more conspicuous in some specimens than in others. Outer 

 margin of the aperture sharp, slightly inflected medially, inner 

 border with four sharp, oblique plaits on the anterior half of the 

 columella. 



This species is narrower and more coniform than either 

 F. stroplwclon or V. weldi. 



Dimensions. — Length 32 mm.; breadth 15 mm.; length of 

 aperture 23 mm. 



Form, and Loc, — Eocene : Muddy Creek, Victoria. 



G. 9353. One example. Furcliased. 



Subgenus AMORIA, Gray. 

 [Proc. Zool. Soc. 1855, p. 64.] 



Shell fusiform, smooth, and polished ; protoconch turbinate, 

 elevated, canaliculate, smooth, whorls of the initial portion pointed, 

 small, becoming slightly inflated with growth, and spirally and 

 longitudinally striated towards the anterior extremity ; shell 

 ornamented with coloured bands, or more or less undulating 

 longitudinal lineations ; suture callous ; columella with four or 

 five plications. 



This subgenus is confined, in the living state, to Australasia, 

 and it is interesting to note the occurrence of fossil forms. The 

 coloured lineations are persistent, even in many fossil examples — 

 in all of those in the Museum collection. 



Type. — Volida turneri, Gray. 



^ Op. eit. pi. siii. fig. 9. 



