130 EOCENE MOLLUSCA. 



According to the strict rules of nomenclature, the specific name oviformis ought, 

 perhaps, to be retained for this shell ; but the species which occurs not unfrequently at 

 Highgate and the neighbouring localities, and which is figured on the same plate, is 

 so generally known as C. oviformis, that I have applied the name to that species. 



Size. — Axis, 3 inches and l-10th; diameter, 2 inches and 2-10ths. 



Localities. — Highgate, where it is very rare ; Bracklesham Bay, where it is not 

 uncommon. 



No. 73. Cypiuea globularis. F. E. Edwards. Tab. XVI, fig. 3a, b. 



CypRtEa globosa, J. Sow. 1850. Dixon's Geol., &c, Sussex ; p. 189, t. 8, fig. 3. 



C. testa globosa, lavi, antice rostratd, vix emarginatd ; aperturd sub-fe'"id, angitstd, 

 postice sub-canaliculatd ; labro inflexo, compresso, intus dentato, dentibus nu.ia./osis, fere 

 equalibus ; columella deniato-plicatd, antice compressd. 



Shell globose, smooth, with a short, straight, rather narrow canal ; scarcely notched 

 in front; aperture nearly straight, narrow, terminating posteriorly in an obscure 

 canal; outer lip broad, compressed, curved inwards, with numerous regular teeth, 

 nearly equal in size, placed on the inner edge ; columella .furnished with numerous 

 pliciform teeth. 



The nearly globular form and short narrow beak of this exceedingly rare Cyprsea 

 distinguish it from all its congeners. The specimen from which the figures are taken 

 forms part of Mr. Dixon's collection, and is, I believe, unique. The specific name 

 proposed by Mr. Sowerby having been previously used by Dujardin for a different 

 species from the Faluns of Touraine, I have substituted the present name for it. 



Size. — Axis, nearly 2 inches ; diameter, 1^ inch. 



Locality. — Bracklesham Bay. 



No. 74. CYPRiEA Bartonensis. F. E. Edwards. Tab. XVII, fig. 6a— b. 



C. testa ovatd, ventricosd, subtus depressiusculd, antice atlenuatd, lavi ; spirdprominuld, 

 vix obtectd, sulco obscuro circumdatd : aperturd lineari, angustissimd, antice latiori, postice 

 elongatd, idrtique extremitate sub-rostratd et emarginatd; labro extus marginato, antice 

 compresso, regidariter dentato ; columella subrectd, planulatd, antice concavd, dentato-plicatd, 

 dentibus posticis elongatis. 



Shell ovate, ventricose, flattened beneath, attenuated in front, rather obtuse behind ; 

 spire somewhat elevated, scarcely concealed by the enamel, and encircled by an obscure 

 sulcus formed by the suture : mouth nearly straight, very narrow, a little wider in 

 front, produced behind, and presenting at each extremit/ a short canal, slightly notched ; 

 outer lip broad, thickened, so as to form a curved raised border along the outer 



