162 



Dimensions. — Length 16 mm. ; breadth 7 mm. ; length of 

 aperture and canal 8 mm. 



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



G. 9382. Two specimens. Furcliased. 



Genus EUTHRIA, Gray. 

 [Fig. Moll. An. vol. iv. 1850, p. 67.] 



Shell bucciniforra, smooth ; aperture ovate, outer margin 

 posteriorly sinuated, lirate within ; inner margin excavated, smooth, 

 callous in the neighbourhood of the posterior sinus and twisted, 

 ■with an oblique fold at the entrance of the canal, the latter being 

 rather long, bent, and recurved. 



Type. — Fusus lignarius, Chiaje. 



Subgenus DENNANTIA, Tate. 

 [Trans. Roy. Soc. Soutli Aust. vol. x. 1888, p. 161.] 



This differs from Euthria, sensu stricto, in being much more 

 elongate, in having a relatively smaller aperture, by the possession 

 of a more distinct and dentate plait on the anterior portion of 

 the columella, and by a small denticle projecting from the outer 

 margin anteriorly. At the same time it is not worthy of generic 

 separation, and the present writer has some diffidence in regarding 

 it otherwise than as an extreme form of Futhria. In this 

 connection it is interesting to note that Euthria, sensu stricto, 

 a common Mediterranean species, has recently been discovered in 

 Australian seas. 



Type. — Fusus ino, Tenison- Woods. 



Euthria (Dennantia) ino, Tenison-Woods (sp.). 



1880. Fusns ino, Tenison-Woods, Proc. Linn. Soc. N.S.W. vol. iv. p. 13, 



pi. iii. fig. 10. 

 1888. Dennantia ino, Tate, Trans. Roy. Soc. South Aust. vol. x. p. 161, | 



pi. xii. figs, la-c and 3. 

 1893. Dennantia ino, Tate and Dennant, id. vol. s™. pt. 1, p. 219. 



