Miscellaneous. 1G7 



April 30, 1879.— Henry Clifton Sorby, Esq., F.R.S., 

 President, in tbe Cbair. 



The following communications were read : — 



1. " Vectisaurus valdensis, a New Wealden Dinosaur.'' By J. 

 W. Hulkc, Esq., E.R.S., E.G.S. 



The author described some fossil remains, obtained by him in 

 Brixton Bay, Isle of Wight, in 1871, consisting of an ilium, several 

 pre-sacral, and ono post-sacral vertebra. He established the Dino- 

 saurian nature of the animal represented by them, and offered proof 

 of its distinctness from already-known forms. He proposes for it 

 the name Vectisaurus valdensis, a name descriptivo of the locality 

 and formation in which tho remains were found by him. The 

 characters presented by the genus Vectisaurus were stated to be as 

 follows : — Ilium with a long compressed antacetabular process, 

 having its greatest transverse extent in a vertical plane, and 

 strengthened by a strong ridge produced from the sacral crest. 

 Vertebrae in anterior dorsal region having opisthoccelous centres, 

 their lateral surfaces longitudinally concave, transversely gently 

 convex, meeting below in a blunt keel. 



2. " On tho Occurrence of the Genus Dithyrocaris in the Lower 

 Carboniferous, or Calciferous Sandstone, Series of Scotland ; and on 

 that of a second Species of AntJirapalcemon in these Beds." By R. 

 Etheridge, Esq., Jun., E.G.S. 



The author, in the first place, referred to the extension of the 

 range in time of the genus Dithyrocaris, by tho discovery of nume- 

 rous fragmentary remains of I), testudineus, Scouler, in the Calcife- 

 rous Sandstone or Lower Carboniferous Series of the south of 

 Scotland, about tho horizon of the Wardie Shales near Edinburgh, 

 and in the Cement-stone group of Roxburghshire. 



A further and more complete description of Anthrapahvmon 

 Wbodwardi, Eth., jun., was then given, in which the characters of 

 some of the appendages were more particularly alluded to, such as 

 the eyes, inner and outer antenna), and first pair of ciliatc appen- 

 dages, thus placing the stability of the species beyond a doubt. 



The paper concluded with tho description of a second specios of 

 Anthrapalcemon, from the Lower Carboniferous rocks of Roxburgh- 

 shire, for which the author proposed the name of A. Maceonochii, 

 after the discoverer of the specimen. This remarkablo species, of 

 which the carapace is at present the only portion known, differs 

 essentially in the characters of this part of the body from all tho 

 other described species of the genus. 



MISCELLANEOUS. 



Notice of a new Jurassic Mammal. By Prof. 0. C. Marsii. 



Diking a recent visit to the Rocky Mountains the writer spent 

 sometime in examining the deposits known as the Atlantosaurus- 



