AG CRETACEOUS GASTROPODA 
the greater number of known Cypree into Ovula. Pictet (Materiaux p. 1. Paléont. 
Suisse. 3me. ser. 1864, 2me. pt. p. 687) quotes in his review of the cretaceous 
oVuLINz seven species, four European and three Indian, namely— 
1. Ovula Warticensis, D’Orb. (Cyprea Marticensis, Math. 1843) is probably 
a true Oyprea (vide Cyprea hereafter). 
2. O. involuta Pictet et Campiche (Marginella involuta, Zek. 1852), has alent 
been asserted by me to be a true Cyprea (vide Revision der Gastrop. d. Gosaugeb. 
in Sitzungsb. Akad. Wien. 1865, vol. LIT.). 
3. 0. striata, Zek. was in the same paper referred by me to Psewdocassis of 
Pictet and Camp.; it is as yet known from a single specimen only, and is either a 
Pseudocassis or a Cyprea, not an Ovula or any other genus of the oruzrw2. 
4. O.cretacea, D’Orb., is a species as yet of doubtful existence, being based 
neither upon a description nor a figure. ; 
5. O. antiquata, D’Orb., from Pondicherry, figured in the Paleeont. of the 
Astrolabe, is a true Ovula and will be described hereafter. Cyprea Cunliffei, Forb. 
must be excluded from the synonyms, as being a true Cyprea. 
6. O. Kayei, D’Orb., is a Cyprea, and most probably the old Globiconcha 
ovula, D’Orb., which Coquand showed to be a Cyprea. 
7. O. incerta, D’Orb., is an incomplete specimen of Cyprea Newboldi, Forbes. 
From these remarks it will be seen that the true number of known cretaceous 
species of the sub-family oruzryz is reduced to one, which is a true Ovula. The 
O. cretacea, D’ Orb., must for the present be left doubtful, whether it belongs to this 
group at all or not, until it may be possible to ascertain the species intended by 
D’Orbigny’s name. 
VI. OVULA, Bruguwiere, 1792. 
Ov. testa imvoluta, ventricosa, ad extremitates subacuta, subcanaliculata seu 
lente emarginata ; apertura angusta: labro inflexo, interne denticulato seu substriato, 
labio edentulo. 
The uncertainty as to the application of the name Aimphiperas of Gronovius must 
prevent its replacing Bruguiere’s denomination, which is so thoroughly known 
to all conchologists. Nor does there seem to be any necessity to alter it into Ovulum, 
Sow. accepted by L. Reeve in his last Monograph of this genus (Conch. Icon. 
pts. 246 and 247, 1865). 
The usually inflated form of the shell, being little produced on both extremities 
and not distinctly canaliculated, the narrowness of the aperture, stronger inflexion 
and internal striation or denticulation of the outer lip, and the smoothness of the 
exterior surface show sufficiently the relations of this genus to the Cypree, as 
well as on the other hand they render the separation of Calpurnus, Cyphoma and 
Volva necessary. 
We have to notice only a single species, which has been already in 1847 figured 
by D’Orbigny from the neighbourhood of Pondicherry. Mr, H. F. Blanford men- 
