64 EEPORT— 1887. 



(Specimens.) Mus.Pract. Geol.-^ = f. 4 and f . 5 ; -— = f. 1 and f. 6. 



/ 8 



Mus. Pracfc. Geol. D ^ = f, 2; ' Catal. Sil. Cambr. Foss., M. P. G.,' 



1865, p. 116. 

 Lower-Garboniferous. — Tyrone Shales ; Clogher, Ireland. 

 Derry Shales; Ballynascreen, Ireland. 

 Carboniferous Limestone, Lower Shales ; Clogher, Tyrone. 

 Low er- Carboniferous ; Craigenglen, near Glasgow; fide 'Catal. W.. 



Scot. Foss.,' 1876, p. 45. 



4. Dithyrocaris orhicularis, Portlock, 1843. 



'Geol. Report Londonderry, &c.,' 1843, p. 316 (not figured). 



Loiver- Carboniferous. — Ballynascreen Shale; Whitewater River, Derry. 



5. Dithyrocaris iemiistriata, M'Coy, 1844. 



Avicula jparadoxoides ? De Koninck, ' Descript. Anim. Foss. Carb.,' 



1842, p. 139, pi. 6, f. 6. 

 Dithyrocaris tenuistriatus, M'Coy, ' Synops. Carbonif. Foss. Ireland,' 



1844, p. 164, pi. 23, f. 3. 

 D. tenuistriatus, H. W., ' Report Brit. Assoc.,' August 1871. ' Geol. 



Mag.,' 1871, p. 106, pi. 3, f. 4. 

 Morris, Packard, &c. 

 (Specimens.) Loioer-Carbonifero7is.---Yine, Belgium; Robroystone, 



Lanarkshire. 

 Lower-Carboniferous. — Ireland (no locality given) ; Robroystone (?) and 



Auchenbeg, Lanarkshire, Scotland-; Mountain-limestone, Settle, 



West Yorkshire. 



6. Dithyrocaris lateralis, M'Coy, 1852. 



' Brit. Pal. Foss. Cambridge Mus.,' 1852, p. 182, pi. 3 i, f. 36. 



The figure here referred to does not well represent the specimen in the 



Cambridge University Museum (W. Hopkins, Coll.). 

 Lower-Carboniferous. — From the black bands over the main limestone 



of Derbyshire. 



7. Dithyrocaris granulata. Woodward and Etheridge, 1873. 



'Mem. Geol. Surv. Scotl., Expl. Sheet 23,' 1873, p. 99. 

 ' Geol. Mag.,' 1874, p. 108, pi. 5, f. 2 and 3. 

 Lower- Carboniferous. — East Kilbride, Lanarkshire. 



8. Dithyrocaris glabra, W. and E., 1873. 



' Mem. Geol. Surv. Scotl, Expl. Sheet 23,' 1873, p. 99. 

 ' Geol. Mag.,' 1874, pp. 108, 109, pi. 5, f. 4 and 5. 

 Lower-Carboniferous. — East Kilbride, Lanarkshire ; and Ardross Castle, 

 Fife. 



9. Dithyrocaris ovalis, W. and E., 1873. 



'Mem. Geol Surv. Scotl., Expl. Sheet 23,' 1873, p. 100. 

 ' Geol. Mag.,' 1874, p. 107, pi. 5, f. 1. 

 Lower-Carboniferous. — East Kilbride, Lanarkshire. 



10. Dithyrocaris, sp. indet. Etheridge, ' Q. J. G. S.,' xxxv. 1879, p. 465. 

 Lower- Carboniferous. — Wardie Shales of the Calciferous-sandstone 



series, near Edinburgh. 



11. Dithyrocaris, sp. indet. Etheridge, ' Q. J. G. S,,' xxxv. 1879, p. 466, 



pi. 23, f. 2 and 3. 

 Lower-Carboniferous. — Cement-stone group, near New Castleton, Rox- 

 burghshire. 



