oe ae 
ae 
‘ “hh 
; 
80 . RALPH TATE. ; 
contracted, the fenestrated ornament gradually obliterated on the 
anterior-half. Length 11; diameter of penultimate whorl 4:5, of 
body-whorl 4 mm. Locality—Hocene: Adelaide-bore. 
Genus Colina. 
This genus founded by the Messrs. Adams in 1853, of which 
four living species are known, has been signalled in a fossil state 
by Cossmann in 1889, who refers to it eight species of the Parisian 
Kocene which had been described as Cerithiums by Deshayes. The 
characters bring it in near relation to Zovenella (as distinct from 
Cerithiopsis ), from which it is distinguished by its straighter canal, 
dilated aperture, and reflected peristome. 
Some of our Hocene Lovenelle may eventually prove to belong 
to Colina. 
CoLINA APICILIRATA, spec. nov., Pl. xii., fig. 7. 
Shell slender, elongate ; whorls slightly convex, with six slender 
lire crossed by transverse threads of about equal strength, which 
produce square interspaces; aperture broadly dilated ; columella- 
border thin and slightly reflected ; canal rather long (about:5 mm.), 
slightly upturned, and just perceptibly bent to the left. Apex 
obtuse of two-and-a-half lirate whorls. Length 7, width of penul- 
_ timate whorl 2, of body-whorl 2°5 mm. 
Eocene clays at Gellibrand River (Mr. Dennant). 
This species closely resembles C. Mfwniert, Desh., but differs in 
_its embryonic whorls, which in the Parisian fossil form an acute 
pyramid of four to five smooth and slowly decreasing whorls. 
CoLINA FENESTRALIS, spec. nov., Pl. xii., fig. 11. 
Shell pyramidal of eleven flat whorls separated by a canaliculate 
suture ; apex of two small smooth inflated whorls; penultimate 
whorl! with five flat spiral threads, crossed by perpendicular coste, 
which are nearly equally stout as the lire, thus dividing up the 
surface into square pits (six in a length of 2 mm.). Length 
9:5; breadth 3 mm. 
Locality :—Eocene: Gellibrand River. With it occur two other 
closely-allied species, and a fourth is in the Table Cape beds. 
