77 
Micropora regularise d’Orb — Terr. Cret., p. 188, Atlas pi. 000—601. 
“This is unlike any British form of Micropora known to me. It more closely 
resembles both in general outline and arrangement of cells the Vincularia 
regularise d’Orb.’’—Note by G. R. Vine, Esq. 
Diastopora regularise d’Orb. 
“This is a much more delicate example than one described by me from Red 
Chalk. It may very well bear a varietal name. It is a beautiful little species and 
very distinct.’’—Note by G. R. Vine, Esq. I propose the name Selseyensis from 
the locality whence I obtained it. 
NOTE.—Since the foregoing was written, Mr. Clement Reid, F.G.S., of 
H.M. Geological Survey, has obligingly favoured me with a copy of a paper 
recently read by him at a meeting of the Geol. Soc., Lond., on the same subject. 
The chief differences between us appear to be the position and age of the erratics. 
The suggestion of Mr. Reid that the size of the large Pholas crispata is 
indicative of Arciic condition is hardly tenable, because strictly speaking it is not 
an Arctic shell so much as a boreal form, and the nearest in point of size to the 
largest Selsey example recorded, viz.—6 inches in breadth, are those from the 
estuarine clays of late origin in the Belfast estuary, where specimens of 4 and 
4| inches in breadth are not uncommon: and the northern cirripede, B. porcatus, 
I obtained in association with, in fact affixed to, the large Tapes decussatus so 
characteristic of the mud deposit. 
There is no doubt that the erratics are very widely spread beyond the area of 
the Selsey mud, but this does not prove their precedence in time any more than 
does the occurrence of a single block in the clay (the “ hard mud ” bed of my 
paper) examined by Mr. Reid. 
Had the erratics or any of them been found in situ below the hard Pleistocene 
clay, the claim in favour of “this problematic earlier glaciation ” would have 
been very much strengthened. As it is, such claim seems to rest upon the fact 
that as these blocks or erratics extend over the adjacent earlier Eocene clays they 
must therefore of necessity be older than the mud deposit itself, a conclusion I 
certainly cannot agree with, as being against the weight of evidence, all the 
conditions pointing to a much later period of distribution and the erratics deposited 
on a greatly eroded and denuded surface as suggested in my text. 
'I he non-marine fauna and flora recorded by Mr. Reid from the ancient river 
bed at West Wittering is a very valuable addition to our knowledge of the life 
of the period in question. To make the lists I have given more complete, Mr. 
Reid has kindly permitted me to add his lists, as given in his paper, to my own. 
If any value may be placed upon the facies of a fauna as indicating the 
temperature of the age in which it was accumulated, it may be that the older 
portion of the Thames gravels, the Lexden peat, the Fluviatile gravels about 
Cambridge should be considered as coeval with the Selsey mud, all these having 
a fauna more consonant with the presence of a warmer climate than afterwards 
prevailed. 
List of Mollusca, Flowering plants, f 
F.G.S., at West Wittering, near Selsey. 
Card, edule. 
Scrob. piperata. 
Tell, balthica. 
Corbicula fluminalis. 
Sphserium corneum. 
Pisidium amnicum. 
,, pusillum. 
Bithynia tentaculata. 
Yalvata piscinalis. 
,. cristata. 
Planorbis carinatus. 
,, complanatus. 
,, con tortus. 
,, nautileus. 
,, nitidus. 
,, spirorbis. 
Limnsea auricularius. 
,, palustris. 
,, peregra. 
Ancylus fluviatilis. 
id Mosses obtained by G. C. Reid, Esq., 
(Inserted by permission). 
Velletia lacustris. 
Hydrobia marginata. 
,, similis. 
,, ulvae. 
,, ventrosa. 
Limax agrestis. 
Succinea elegans. 
„ oblonga. 
Zonites fulvus. 
Helix hispida. 
„ nemoralis. 
,, pulchella. 
,, rotundata. 
,, rupestris. 
Zua lubrica. 
Pupa muscorum. 
Vertigo edentula. 
Clausilia biplicata. 
Carychium ninimum. 
