3i6 



vine: micro-paleontology. 



There are a few very poor specimens of a species that I cannot 

 place under any other name than this. The prominent keel is seen 

 in some of the fragments, and the two pores between the pinnae as in 

 the Scotch form, otherwise it is so dwarfed as to be scarcely com- 

 parable with the poorest specimens even, of those from Hairmyres. 



Localities. — Yoredale : Fourstones, Northumberland. 



Fam. DIPLOPORIDjE Vine. 

 1884 (see Naturalist, ante, p. 63). 

 Gfiius ACANTHOPORA Young and Young. 



5 Acanthopora stellipora Young and Young. 



1874 = 6'/^?/r^//c7;//^ id., Quart. Journ.Geol.Soc. (Dec), p. 682. 

 1882= „ Vine, Proc. Geol. Polyt. Soc. York- 



shire, vol. vii. 



6 Acanthopora stellipora Young and Young. Var. a. spinosa 



Young and Young. 



Proc. Glas. Nat. Soc, March 1875, P^- ^^-^ ^gs. 25-26. 



Quart. Journ. Geol. Soc, 1874, p. 682, pi. xL, figs. 9-1 1. 



Both the species and the variety are present in these Shales, but, 

 like the rest of the Polyzoa, fragments very poor. 



Localities. — Yoredale : Fourstones, Ingoe, Northumberland ; 

 Hurst, Yorkshire. Limestone Shales, Hairmyres ; Upper ditto, 

 Gare \ Boghead. 



Genus DIPLOPORA Young and Young. ■ 



7 Diplopora marginalis Young and Young. 



1875. = Glauconojne (Diplopora) marginalis Young and 

 Young. 



1882. = G. marginalis Vine, Proc. Geol. and Polyt. Soc. 



Yorkshire, p. 333. 

 1884. ^Diplopora marginalis Vine, Naturalist, ante^ p. 208. 

 A few fragments, rather better preserved than specimens pre- 

 viously referred to ; but it is very rare in these Northumbrian Shales, 

 though not so rare in the Yorkshire. 



Localities. — Yoredale : Fourstones ; Hurst and Richmond, 

 Yorkshire. Limestone Shales, Boghead ; Hairmyres, Gillfoot, Scot- 

 land \ Hook Point, Ireland ; Halken, Wales. 



Fam. ? 



Genus HYPHASMOPORA Etheridge, jun. . 

 8 Hyphasmopora Buskii R. Etheridge, jun. (Naturalist, p. 64.) 

 Only in the Ingoe Shales have I detected fragments of this very 

 characteristic species. 



Naturalist, 



