372 AMERICAN JOURNAL 



Description de Coquilles fossiles des terrains Jurassiques 

 {continued): BY M. C.MAYER. 



Gardinia perovalis. Ammonites conjungens. 



Gandium Argovianum. " Toricellii, Oppel. 



Ammonites militaris. " hereticus. 



" spinaries, Quenst. " spinescens. 



" Nodotianus, D'Orb., var. " Groenackeri, Mcescli. 



De genre Mathilda: BY O. SEMPER. 



This new genus embraces a few European species, princi- 

 pally fossil, previously referred to Turritella, Eglisia and Sca- 

 laria. Nine species are enumerated, of which the following 

 are new : — 



M. scabrella, Oligocene, Latdorf. 

 " serrata, " " 



" annulata, " " 



" Brocchii, Subapennin, Bologne. 

 " gemmulata, " Asti. 



Addition cL la monographic du genre Mathilda: BY 0. 

 SEMPER. 



31. margaritula, Miocene, Lapugy, in Transylvania. 



" monilis, " '■' " 



GERMAN. 



Monatsberichte der Koniglichen Preuss. Akademie der Wis- 

 sensehaften zu Berlin. For 1864. Berlin, 1865. 



Uber neue Gyclostomaceen und Selicinen aus demlndischen 

 Archipel: by dr. von martens. 



Opisthoporus Sumatranus, Su- Rhaphaulus cer amicus, Mo 



matra. luccas. 



Pterocychs " " Omphalotropis bicarinata, " 



Cyclotuslatistrigus,W. Borneo. Truncatella scalar oides. " 

 fasciatus, Celebes. Diploinmatina constricta, "■ 



reticulatus, Timor, &c. Daxillus rubicundus, W. Bor- 



ptychoraphe, W. Borneo. neo. 



liratulus, Moluccas. Alycseus longituba, Sumatra. 



bicarinatus, " Helicina sculpta, Timor. 



carinulatus, " " suturalis, Amboina. 



(7a?/man5i, Sumatra. " ^orr^een5^ff, W.Borneo. 



