363 



genus figured by Dumoetier, in his Etudes Paleontologiques 

 du Bassin du Rhone, under the name of Chondrites scoparius. 

 I have, however, submitted tracings of my drawings and des- 

 criptions of the Algse to the Count G. de Sapoeta, who has kindly 

 taken up the subject, and corresponded fully with me; but 

 as the results are not yet mature, and the subject is somewhat 

 complex, I would entertain the hope of devoting a separate 

 article to it for the Proceedings of the Cotteswold Society. 

 Meanwhile, the name Chondrites scoparius, Dumortier, may be 

 accepted provisionally. I add provisionally, for after reading 

 Count G. de Sapoeta's treatise in the Bulletin of the " French 

 Geological Society," one learns, that in his opinion Chondrites 

 scoparius is a term of vague general application to this class 

 of fossil, and, therefore, probably applies to several species. 

 Later on, for at the time of writing this account I had not 

 enjoyed the advantage of consulting Tate and Blake's work 

 on the Yorkshire Lias, (Yan Yoorst, 1876,) I find those 

 authors make out two kinds of Algse in their Spinatus Beds, to 

 both of which, certainly, so far as general resemblance will 

 carry us, we can match the forms in the Churchdown Spinatus 

 Sands. They are given by Professor Ealph Tate under Plantce, 

 p. 474, and are entitled, Nulliporites furcillatus, spec. nov. 

 and Chordophyllites cicatricosus, spec. nov. The latter is stated 

 to be abundant, and like ours, overlapping and intertwining 

 one among the other. 



Amongst the exuvise buried in the sands there are fragments 

 of most orders of marine life. There are broken tests and spines 

 of several species of sea urchin, — and notably, of the Cidaris 

 amalthei, Quenstedt. Of the remains of the larger Crustacea, 

 the condition of the specimens does not favour a safe deter- 

 mination. There are portions of Glyphcea amalthei, and the 

 carapace of a Pseudoglyphea, also Eryma Imvis, Blahe, — A. 

 la-vigatus, Simpson. I am much indebted to the ripe experience 

 of Mr. H. WooDWAED, F.E.S., of the British Museum, for the 

 assistance he is always so ready to afford to students of this 

 class of invertebrate Hfe. We next observe the smaller Crust- 

 acea, the Entomosiraca. These are of the minute order 



