574 Reviews — Sauvage's Catalogue of Fishes. 



dolus lavis, Ag. ranges from the Gt. Oolite to the Wealden beds, in 

 fact, the species of the genus Lepidotus are more numerous, and 

 have a wider geological range in the Upper Oolites than any other 

 genera noticed. The Oxfordien and Callovien are very poor in fish 

 remains, but the latter contains a new genus Curtodus, allied to 

 Strophodus, but differing in the more gibbous and inflected form of 

 the teeth. 



In the Kimmeridgien and Portlandien beds the fish remains are 

 fragmentary, such as teeth and scales, and rolled, as if accumulated 

 on a coast line ; no entire specimens having been found. The Ganoids 

 are represented by Lepidotus, and the Placoids by Strophodus, 

 Hyhodus, and a new genus Auluxanthus, founded on an Iclithyodorulite 

 from Portel, which is flat and finely striated, the anterior margin 

 blunt, the posterior with a shallow furrow throughout its length, 

 the borders of which are furnished with small points. The 

 ChimceridcB, which make their first appearance in the Kimmeridge 

 beds, are here as elsewhere represented by Iscliyodus, which also 

 occurs in the Portland beds, seven species being noticed. 



V. DeSCRIZIONE DI AlCUNE ClCADEACIiE FoSSILI EiNVENUTE NELL' 



Oolite del Alpi Venete, del Baeone Achille de Zigno. 



THIS small brochure by Baron Zigno, whose larger work we hope 

 hereafter to notice, contains descriptions of eight species of fossil 

 Cycads from the Oolite of the Venetian Alps, one of which, the 

 Otozamites Bunhurianus, is considered to be identical with the 

 Otopteris tenuata from the Oolite shale of Cloughton, Yorkshire. 



IV.— SCIENTIFIC JOURNALS. 

 The Popular Science Review, for October, contains a good 

 article by Prof. D. T. Ansted, F.R.S., on " How to make a Geological 

 Section," and an article on the Lobster, by Mr. St. George Mivart, 

 F.L.S., with much else of general interest. 



The Quarterly Journal of Science, for October, contains two 

 papers interesting to the geologist ; one by the Rev. H. W. Crosskey, 

 " on the Post-tertiary beds of Norway and Scotland," in which the 

 author points out that the physical changes from the Glacial epoch to 

 the present day were generally similar as to succession and variation 

 in both countries, and were gradual, and have left their evidence in 

 the shell-beds as well as in physical phenomena. Mr. Crosskey points 

 out that of the lower series of Glacial fossil shells of Scotland some are 

 only now living in high northern latitudes, while the second great 

 series of Glacial beds indicates a change from the extreme arctic con- 

 ditions of the preceding period. The second paper, "on the 

 iron pyrites mines of Andalusia," is the result of a hasty visit to the 

 country : embodying also information derived from the Spanish, 

 French, and English works on the district. The metalliferous zone 

 is in the slaty Silurian rocks associated with porphyritic masses. 

 The ore-vein is mostly a homogeneous mass, sometimes 70 metres 



