76 BRITISH CARBONIFEROUS BRACHIOPODA. 



14. Spirifeea cuspidata, Martin, sp. Trans. Lin. Soc, pi. iii, figs. 1 — 6, 1796; and Dav., pi. viii, 



figs. 19—24 ; pi. ix, figs. 1,2 = simplex, M'Coy, not of Phillips. 

 If). — DiSTANs, Sow. M. C, tab. 494, fig. 3, 1825 ; and Dav., pi. viii, figs. 1—17. 



16. — MESOGONIA, M'Coy. Synopsis, pi. xxii, fig. 13, 1844; and Dav., pi. vii, fig. 24. 

 This is said by Professor De Koninck to be a very good species, but I have never had 



an opportunity of studying the shell. 



Doubtful Species. 



— bicarinata, M'Coy. Synopsis, pi. .vxii, fig. 10; and Dav., pi. viii, fig. 18. 



— decemcostata, M'Coy. Ibid., fig. 9 ; and Dav., pi. vii, fig. 23. 



— subconica, Martin. Pet. Derb., tab. xlvii, figs. 6 — 8, 1809 ; Dav., pi. ix, fig. 3. 



17. — Reedii, Dav., pi. v, figs. 40 — 47. 



18. — TRiRADiALis, PhUUps. Geol. York., pi. x, fig. 7 ; and Dav., pi, ix, figs. 4 — 12 = trisul- 



cosa and sexradialis, Phillips. 



19. — piNGUis, Sow. M. C, tab. cclxxi, 1820; and Dav., pi. x, figs. 1 — 12 = rotundata, Sow. 



(not Martin) = subrotundata, M'Coy. 



20. — oYALis, Phillips. Geol. York., pi. x, fig. 5; Dav., pi. ix, figs. 20 — 26?= exarata, 

 Fleming =: heniisphcerica, M'Coy. 



21. — iNTEGRicosTA, PAj7%5. GboI. York., pi. X, fig. 2 ; Dav., pi. ix, figs. 13 — 19 1 = rotunda- 



tus, Martin ? = paucicostata, M'Coy. 



N.B. The species forming this little group are all very nearly connected. 



22. — RHOMBOiBALis, M'Coy. Synopsis, pi. xxii, fig. 11, 1844 ; Dav., pi. xii, figs. 6, 7. 



23. — GLABRA, Martin, sp. Pet. Derb., pi. xlviii, figs. 9, 10, 1809 ; and Dav., pi. xi, figs. 1—9, 

 and pi. xii, figs. 1 — 5 = obtusus. Sow. = oblatus. Sow. = linguifera, symmetrica, 

 and decora, Phillips. 



— URii, Fleming. British Animals, p. 376, 1828; and Dav., pi. xii, figs. 13, 14. 



— Carlukensis, Dav., pi. xiii, fig. 14, 1857. 



— LiNEATA, Martin, sp. Pet. Derb., tab. xxxvi, fig. 3, 1809 ; and Dav., pi. xiii, figs. 1 — 13 

 = imbricata. Sow. ^ reticulata, M'Coy = elliptica and mesoloba, Phillips. 



f27. Spibifertna cristata, Schloth., var. octoplicata. Sow., M. C, tab. dlxii, figs. 2 — 4, 1827; Dav., 



pi. vii, figs. 37 — 47. 



28. ? iNSCVLTTX, Phillips. Geol. York., pi. ix, figs. 2,3, 1836; Dav., pi. vii, figs, 48, 55 



= crispus, De Kon. (not of Linnaeus) = qttinqneloba, M'Coy. 



29. ? minima, Sowerby. M. C, tab. ccclxxvii, fig. 1, 1822; Dav., pi. vii, figs. 56 — 59, un. 



certain species. 



Doubtful Species. 

 ? partita, Portlock. Report on the Geol. of the County of Londonderry, &c., pi. xxxviii, 



fig. 3, 1843 ; and Dav., pi. vii, figs. 60, 61. 

 N.B. It has not yet been perfectly ascertained whether Sp. insculpta and Sp. minima 

 1 have a perforated shell structure. 



30. Cyrtina septosa, Phillips. Geol. York., pi. xi, fig. 7, 1836 ; Dav., pi. xiv, figs. 1 — 10, and pi. xv, 



figs. 1, 2. 



31. — CARBONARius, M'Coy. British Palseozoic Fossils, pi. iii D, figs. 12 — 18, 1855 ; and Dav., 



pi. XV, figs. 5 — 14. 

 — dorsata, M'Coy. Synopsis, pi. xxii, fig. 14, 1844 ; and Dav., pi. xv, figs. 3, 4.' 



• The still imperfect knowledge we possess of the exact geological position or vertical range of several 

 of the species of the Carboniferous system, renders every -well-determined fact of considerable interest.— 



