Notices of Memoirs — Jurassic Corah, North Italy. 325 



Messinian, but throngli the rest of the Messinian an elevation 

 continued. The greatest depression of all took place in the Zanclean, 

 which was deposited in great depths, as shown by the fauna, by 

 having such a large extension, and by occurring up to such a great 

 height as 1200 metres above the sea ; through the Astian this 

 depression continued, but at the Pliocene the elevation took place 

 which gave to the province its present configuration. 



Professor Sequenza considers that as yet only the Mollusca have 

 been sufficiently studied to permit of a satisfactory comparative list 

 of fossils and living Mediterranean species being drawn up, and 

 even with this class he points out fi'esh discoveries ai-e being made. 

 In one group, the Bryozoa, we know of several additions as yet 

 impublished to be made to the Mediterranean fauna, which will 

 considerably alter the proportion of living to extinct. 



The various zones of the Miocene are found to be well character- 

 ized by the Clypeasteridce, of which different characteristic species 

 are found in the Tortonian, Helvetian, Aquitanian, and Tongrian, 

 almost each form being limited to a single geological zone. 



A. W. W. 



II. — Jurassic Cokals of Xoeth Italy.' 



PEOF. D'ACHIAPiDI, in this important memoir, divides the 

 subject into three parts : the first treats of the Corals of ^Tonte 

 Pastello, in the province of Yerona. The Jfadreporaria aporosa of 

 this district consist of one or perhaps two species of JloufUvaidtia 

 fthe doubtful species JZ^ ? cavuli, being new). Of the Stiilosmilince., 

 PlacopJiyUia elegans is described as new. The Polyastrece consist of 

 a new species of Diploccema [D profunda) , one of Stylina (S. tara- 

 mellii, a Sfephanoccenia, five IsastrcBce, one J. MontispasteUi, being 

 new to science), four L'ltimeeandrince, of wbich three are new and 

 peculiar to this formation, but related most neaxly either to Miocene 

 or Middle and Lower Secondary forms, and a new species [ampli- 

 stellnta) of Comoseris, a genus which similarly ranges from the Great 

 Oolite to the Miocene. The stratigraphical position of the beds 

 from which these corals were obtained, as determined from their 

 fossil contents, is placed between the Great Oolite and the Coral 

 Eag, but the exact place is rather uncertain. 



From various other localities near Yerona are described a Monti- 

 livaidtia, a Stylina, a Thamnastrcea, and three new species referred, 

 with doubt, to the genera Latimceandrina, Oroseris, and Beaumoniia 

 respectively ; the correctness or not of the identification of the last- 

 named species is important, as the genus Beaumoniia is mainly 

 Palfeozoic in range, and hitherto represented b}' one species — viz. 

 from the Australian Tertiaries — in any later rocks. 



The beds in this locality appear to belong to the Dogger group. 



The neighbourhood of Mentone furnishes fourteen species of corals 

 from a coarse, friable, calcareous rock. 



Besides single unnamed species of IfontUvaidtia, EhahdojdiyUia, 



1 Atti Soc. Toscana Sci. Xat. (Pisa) Mem. iv. (1S80), pp. 233-310, 4 pis. 



