264 THE PROCEEDINGS OE THE LINNEAN SOCIETY 



angular posteriorly, anteriorly sub-effuse. Columella broad, curved, 

 flattened, and with one conspicuous tooth. The author says : 

 " The shell for which I have erected this genus, although ex- 

 tremely rare, has been long known to naturalists. It is the 

 Eaulinia alligata, described by Deshayes, in his ' Desc. des. coq. 

 foss d. environs d. Paris ' as a Tornatella, and finally placed by the 

 same author in the genus Odontostomia, Having been so fortunate 

 as to meet at Jeurres a fine specimen of this singular shell, I 

 have been able to study it closely, and found myself under the 

 agreeable necessity of erecting a new genus for it. For it seems 

 to me that it cannot be placed with Odontostomia, because of its 

 dimensions and unusual form, from its thin shell and transverse 

 grooves, but above all from its flat non-twisted columella, carrying 

 on the inside an independent tuberculous tooth, which is so very 

 unlike the plait of the Odontostomia. By these characters it 

 is associated with Littorina, and should be placed in the same 

 family. There is in the Paris basin another shell with much the 

 same character — that is Littorina monodonta. It differs from the 

 type in its more elongated form, fainter grooves, and in the 

 position of the tooth. But I believe it should be regarded as a 

 Baulinia " 



It is very remarkable that a # living analogue of this curious 

 shell should be found in Australia. It is rare ; but no doubt now 

 that its peculiarities are published many more will be discovered. 

 It has all the characters of the Paris fossils, and is another 

 instance of how extinct forms of the Eocene (Galcaire grossier), 

 and secondary formations have existing representatives in the 

 Australian seas. 



Raulinia badia. 



T. parva, subpellucida turbinata, spira parum, elata, pallide badia 

 saturata, nitrite; anfr. 4, rapide decrescentibus, spiraliter regula- 

 riter carinata et liris obliquiis crebre cancellata; liris supra carinds 

 transeuntibus ; carinis rotundatis, anfr. 13, apice Icevi, nitente, 

 albo, diaphano ; apertura Integra, circularl, antia canaliculato ; 

 labro tenui, acuto, postice globose arauato et producto ; labio 

 recto, aouto, dente conspicuo munito, umbilico angusto, profundo 



