814 Lower-Carboniferous Entomostraca. By T. R. Jones. 



stone group ; with Anthracomya and fish-scales. Bed-planes 

 covered with casts and impressions of Beyrichia crinita, sp. nov. 

 There is also a somewhat crushed Estheria tenella (Jordan), in 

 shape like fig. 23, pi. 1, and fig. 5, pi. 5, of the "Monograph 

 Foss. Estheriee," 1862. 



3. 0. Tweedmouth. A dark-coloured, fine-grained shale, with 

 numerous valves of Leper ditia suhrecta (Portlock) and L. Scoto- 

 lurdigalensis^- (Hibbert), scattered over some of the planes of 

 bedding, mostly small, crushed, half-imbedded, and otherwise 

 obscured. This is very similar to some of the Carboniferous 

 shales of Ireland, described in the " Ann. Mag. Nat. Hist." for 

 July, 1866, pp. 42-50. There are also two or three specimens of 

 a Eirhhya in this Tweedmouth shale. Mr Kirkby has found a 

 similar form in the Calciferous-sandstone series of Fifeshire 

 (equivalent to the Tuedian group of Berwickshire). We are 

 inclined to refer this Kirkhya to a species allied to M'Coy's 

 " Cythere rostata'' (see "Ann. Mag. N. H.," July, 1866, p. 43), 

 but somewhat different in the arrangement of its ridges, and 

 known to us as K. spiralis, J. & K. MS. 



This shale contains some fish-remains ; and it seems to be low 

 down in the Mountain-limestone group, nearly in the same zone 

 as the shale from Alnwick Moor with Beyrichia crinita. 



4. D. Quarter -of- a-mile north of Benwick Lane. This is a lime- 

 stone containing some small and obscure Leperditim (?) ; from near 

 the middle of the M.-L. group. 



5. E. Cawlishes [Cawledge'], near Alnwick. A bluish-grey 

 fossiliferous shale ; from near the middle of the M.-L. group, 

 and containing Leperditia Scotohurdtgalensis, small encrinital 

 joints, &c. 



6. F. No locality. Limestone with Productus, from near the 

 middle of the M.-L. group. No Entomostraca. 



7. G. Bellingham. Fragment of red ironstone, from the lower 

 part of the M.-L. group. This contains a varietal form of Car- 

 loma falulina, J. & K., which species is abundant in the Lower 

 and Upper Carboniferous strata of Scotland, and in the Upper 

 Carboniferous (Coal-measures) of England and Wales.f 



*See "Ann. Mag. N. H." of May, 1865, and July, 1866, for the 

 arrangement of these two species under Leperditia by Messrs. Jones and 

 Kirkby, 



t" Trans. Geol. See. Glasgow," vol. vf., 1867, p. 213 ; and " Ann. Mag. 

 N. H." ser. 5, vol. iv., 1879, p. 30. 



