VINE: MICRO-PAL.^IONTOLOGV OF REDESDALE SHALES. lOI 



15 Kirkbya spinosa Jones and Kirkby. 



Jones and Kirkby :(?) Trans. Geo. Soc. Glasgow, 1877. 

 In the Scotch Shales, Cragenglen, Mr. Young tells me that this form 

 is rather common ; not so in the Redesdale shales : here I have only 

 found one specimen, but the characters of the form are very distinct, 

 and the valves are apparently faintly reticulate. 



These are the whole of the Entomostraca that I have been able 

 to identify with any degree of certainty. The generic abundance of 

 specimens may be stated thus : — Baii'dia very abundant, KirJzbya 



moderately abundant. 



Fam. MONTICULIPORIDyE. 

 See the Genus ' Monticulipora,' Prof. H. A. Nicholson, 1881. 



1 Monticulipora tumida Phill. sp. 



Nicholson, op. cit., p. 121., pi. iii., figs, i to \f. 



Notes on Monticulipora? tumida Phill. Nicholson, Ann. Mag. Nat. Hist., 

 Nov. 1883. 



I have given in a paper, sent on to the Yorks. Geol. Soc, very 

 full details, with sections, of what I believe to be Phillips' Cala77topora 

 tiimida from my Richmond material. It is very evident that the York- 

 shire species is different from the Scotch species, Tahulipora Urii 

 Young, with which it has been so long associated. Prof. Nicholson 

 says that his description of M. tumida is ' founded upon specimens 

 . . . .collected in the Carboniferous Shales- of Redesdale. . . .where the 

 species is very abundant and remarkably well preserved.' Associated 

 with this species there is a variety, — 



2 Monticulipora tumida Phill. Var. miliaria Nicholson, op. 

 cit, p. 123, pi. iii., figs 2-26. 



I have examined both the species and the variety, and I can 

 accept the whole of Professor Nicholson's remarks on the forms 

 indicated ; but there is another Monticulipora present in the Shales 

 that does not appear to have been referred to by authors — unless under 

 the title of Chceteles sp., or as Ceriopora interporosa in one of Mr. 

 How chin's lists in Professor Lebour's ' Geology of Northumberland.' 

 The Scotch C. interporosa I have not found in any of the Northum- 

 berland Shales, and I cannot say whether the present form is the 

 same as that indicated in the list referred to. 



3 Archaeopora nexilis De Kon. 



Described in 1st Brit. Assoc. Rep. on Fossil Polyzoa, 1880. Also in Geol. 

 Mag., 1880. 



4 Archaeopora sp. (new ?). 



The first of these forms is present in the Redesdale Shales, but 

 not common. The second form I shall place here provisionally, No. 4. 



All the specimens are small, the largest, so far as known to me, 

 scarcelv exceeding a line in length — many considerably less ; general 



Dec. 1884. F 2 



