234 Reports and Proceedings — 



division of the Trias, between the area of Devon and Somerset and 

 that of the midland counties, and there is no unconformity in the 

 former, the author maintained that the upper marls, upper sand- 

 stones, and probably the conglomerate and pebble-bed subdivision 

 of Devon and Somerset, are equivalent in time to the Keuper series 

 of the Midland counties, and that deposition took place in Devon 

 and Somerset between Keuper and Bunter times, bridging over the 

 hiatus marked by unconformity in the Midland counties. 



2. "Note on an Os articulare, presumably that of Iguanodon 

 Mantelli." By J. W. Hulke, Esq., F.R.S., F.G.S. 



In this paper the author described what he believed to be the Os 

 arlicidare of Iguanodon Mantelli, from the best specimen of a series 

 of five collected by the Rev, W. Fox, of Brixton, in the Isle of 

 Wight. He remarked that the mandible represented by this bone 

 differs greatly from that of the Crocodilia, and, in a less degree, from 

 that of extant Lizards, while in some respects it resembles that of 

 Hypsilophodon Foxii. From this resemblance and the relative 

 abundance of the bone in the same beds which have yielded 

 mandibular rami of Iguanodon, he felt justified in referring the bone 

 to the latter Saurian. 



3. "Description of a new Fish from the Lower Chalk of Dover." 

 By E. Tulley Newton, Esq., F.G.S. 



The author referred to his previous descriptions of fishes from 

 British Cretaceous rocks belonging to Prof. Cope's genera Portheus 

 and Ichthyodectes, and stated that he had since obtained a form 

 referable to the allied genus Daptinus. The specimen is in the 

 collection of the British Museum, and was procured from the Grey 

 (^halk of Dover by Mr. Gardner. It consists of the head and some 

 vertebrEe, the characters of which are described in detail by the 

 author, who stated that in some characters, especially the degree of 

 flattening of the teeth, the fish seems to stand between Ichthyodectes 

 and Daptinus, and hence proposed to name it Daptinus intermedins. 

 The author further noticed the existence in the British Museum of 

 a right maxillary bone from the Lower Chalk of Dover, which he 

 thinks may indicate a second species of the same genus. 



4. " Further Remarks on adherent Carboniferous Productidae." 

 By R. Etheridge, jun., Esq., F.G.S. 



The author stated that since his former paper on this subject 

 (Q.J.G.S. vol. xxxii. p. 454), his Froductus complectens had been 

 found in various localities, as in Northumberland, in Fifeshire, and 

 near Dairy, in Ayrshire. The last mentioned may be a distinct 

 species. He further described two specimens of adherent Produc- 

 tidee, one from Scremerston quarry, Northumberland (near Berwick), 

 and one from Kinghorn, in Fifeshire, the characters presented by 

 which led him to refer them to the genus Chonetes. 



5. "The Submarine Forest at the Alt Mouth." By T. Mellard 

 Reade, Esq., F.G.S. 



The right of the remains of trees on the shore at Great Crosby, 

 in Lancashire, to be regarded as representing a submerged forest 

 having been called in question, the author desired to place on record 



