206 CTPE^A. 



margin extending above the level of the spire and of the inner 

 margin, and frequently bent over towards the former. 

 Type. — Cypr<ea algoensis, Gray. 



Cyprsea (Luponia) brachypyga, Tate. 



1890. Cyprtea hrachijpyga, Tate, Trans. Eoy. Soc. South Aust. vol. xiii. 

 pt. 2, p. 206. 



1892. Cyprcea brachypyga, Tate, id. supp. pi. vi. fig. 3. 



1893. Cyprcea brachypyga, Tate and Dennant, id. vol. xvii. pt. 1, p. 221. 



This species differs from C. sulsidua in being pyriform, the 

 anterior portion of the shell being attenuated, by not having such 

 abundant callosity bordering the inner margin, and by the indistinct 

 longitudinal and spiral lineations on the surface. The aperture is 

 very narrow, both margins are crenulated, the outer one rising 

 somewhat above the exsert spire. 



Dimensions. — Length 23 mm. ; breadth 12 mm. 



Form, and Loc. — Eocene : Victoria. 



48052. Series showing stages of growth ; from Schnapper 

 Point. Purchased. 



70409. An example of the neanic stage ; from Meribee Plains. 



Purchased. 



G. 9421. Specimens of earlier stages of growth ; from Muddy 

 Creek. Purchased. 



Cyprsea (Luponia) pyrulata, Tate. 



1890. Cyprcsa pyrulata, Tate, Trans. Eoy. Soc. South Aust. vol. siii. pt. 2, 

 p. 207. 



1892. Cyprcea pyrulata, Tate, id. supp. pi. vi. figs. Aa-b. 



1893. Cyprcea pyrulata, Tate and Dennant, id. vol. xvii. pt. 1, p. 221. 



Broader, larger, and less attenuate anteriorly than C. hrac 

 •whilst the spire is almost entirely hidden ; the aperture is 

 relatively more open, being broad and deeply grooved in front, 

 and the crenulated outer margin rises much higher above the 

 level of the spire, at which point the former is not canaliculate ; 

 inner margin crenulated, the ridges being divided medially by 

 a plane surface concave in front ; this margin is not produced 

 posteriorly. 



