100 Geological Society. 



Entomostraca have also been obtained from these deposits, and 

 identified by Prof. Ilupert Jones. Of the Branchipod Crustacean 

 both sexes are fossilized and beautifullj' preserved, the males show- 

 ing their large clasping antenna3, and the females their egg-pouches, 

 with large and very distinct disk-like bodies representing the com- 

 pressed eggs. Dr. F. Goldenberg notices a fossil from the Coal- 

 measures of Saarbriick which he regards as a Branchipod, and 

 desciibes aud figures under the name of BranchipusHes (recte 

 Brancliipodites) anthracmus ; but this interpretation of it is at least 

 doubtful. The author names his species Brancliipodites vect.'nsis. 

 The Isopods accompanying this species are referred to the genus 

 Arch(xoniscus, M.-Edw., and one of them is identified with the 

 PalceoniscKS Brongniarti of Milne-Edwards. The other is probably 

 a new species, perhaps nearly allied to the existing Sjthceroma 

 serratum. 



February 6th, 1878.— Prof. P. Martin Duncan, M.B., F.R.S., 

 President, in the Chair. 



The following communications were read : — 



1. "On some Foraminifera from Pleistocene Beds in Isehia." 

 By M. Ernest Vanden Broeck. Preceded by some Geological Remarks 

 by A. W. Waters, Esq., F.G.S. 



In this note Mr. Waters referred to certain fossiliferous deposits 

 occurring at various elevations in the island of Ischia, the oldest 

 being a clay found up to 1800 feet on Monte Buceto, whilst the 

 others may be classed with raised beaches. These deposits have 

 been already noticed by Sir Charles LyeU, who obtained from them 

 twenty-eight species of shells, all, with one exception, identified by 

 Dcsha\es with recent species. M. Fonseca has given a list of ten 

 species of shcUs from the Buceto beds, and to these Mr. Waters has 

 added ten more, all now living in the neighbouring sea. A portion 

 of marl forming the matrix of one of these shells was sent by Mr. 

 Waters to M. Vanden Broeck, who found in it twenty-seven species 

 of Foraminifera, with respect to which he remarks that this fauna 

 has a more recent facies than that of the true Subapenniue deposits, 

 all the species being now living either in the North Atlantic or 

 Arctic ocean, and nearly all in the Mediterranean. The presence of 

 Lngence and of some other forms, however, indicates closer relations 

 with the northern oceanic fauna than with that of the warmer 

 Mediterranean. The Foraminifera from Ischia are generally of 

 small size, probably indicating unfavourable conditions. The deposit 

 containing them was probably formed in not very deep water, and 

 more recently than the true Subapennine deposits ; and the smaU size 

 of most of the specimens, and the predominance of northern forms, 

 would seem to show that the deposit took place when the re- 

 frigerating influence of the glaciers was beginning to be felt. 



