Meports and ProceediiKjs — Geological Society of Lo)idon. 45 



and Mr. F, B. Parkinson, have been examined by the author, who 

 tabulates a list of corals and echinids. One new genus and fourteen 

 new species of corals are described, belonging to the genera 

 Stylophora, Sti/liiia, Coluninastrcea, Prionastra'a, Favia, Metethmos, 

 Cyclolites, and Litliarcea, and one new species of Pseudodiadema. 

 The evidence of the collections is sufficient to show that a Neocomian 

 limestone occurs both on the summit of the Somali plateau and on 

 the floor of the Guban, and that some marine limestones of Lower 

 Tertiary age (probably Eocene) also occur on the plateau. It is 

 therefore evident that the foundering of the Aden Gulf is [)ost- 

 Eocene in age. 



2, "Note on Drift - gravels at West Wickham (Kent)." By 

 George Clinch, Esq., F.G.S. 



The author describes two beds of Drift-gravel at West Wickham. 

 The first, occupying the bottom of a dry valley, yields, in a section 

 exposed at Gates Green, material derived from the Chalk and the 

 Lower Greensand ; and distinct, althougb perhaps not direct, relation 

 with the denudation of the Weald is claimed for it. The other bed 

 of gravel is of later age, and has yielded many Palajolithic implements 

 and flakes. The specimens of tliese exliibited were found by the 

 author between 1880 and 1885, and they establish the existence of 

 Drift-gravels about a mile south of Hayes Common. Some of the 

 implements have lost their pointed ends and bear other indications 

 of use, many are smoothed and rounded by Drift- wear, but a few are 

 entirely unworn, while some, particularly the larger examples, are 

 bruised and crushed by such influences as the ploughshare and 

 waggon-wheels. Most of the implements have a superficial colouring, 

 varying from a pale straw-tint to a rich ochreous-brown. " The 

 association of much-worn implements, unworn implements, and 

 flakes, cores, and waste-chips, in the same bed of Drift-gravel points 

 to the fact that we have here a collection of material which Avas 

 brought from a great variety of places, and has undergone a great 

 variety of conditions and changes." 



3. " On the Occurrence in British Carboniferous Rocks of the 

 Devonian Genus Palceoneilo, with a Description of a New Species." 

 By Dr. Wheelton Hind, B.S., F.R.C.S., F.G.S. 



The family NuculidfB is represented in Carboniferous rocks b}' tlie 

 genera Nucula. Niicidana, and Ctenodonta, and to these must now be 

 added Paheoneilo, which the author describes from two fine specimens 

 in the Museum of Practical Geology, from Carboniferous Shale 

 (Yoredale Shale) south of Hammerton Hall, Slaidburn, Yorkshire. 

 It is remarkable that a genus so well developed in Devonian times 

 should be found at the top of the Carboniferous Limestone Series, 

 but not in intermediate beds. Hall's diagnosis of the genus is given, 

 with additional remarks, and a new species is described and con- 

 trasted with Ctenodonta [Pulaoneilo) lirata, Phil., from the Devonian 

 of Baggy. 



