236 INDEX TO THE 



LiNQULA, obtusa, Hall? Dav. Sil. Mon., p. 52, pi. iii, fig. 31, 



— ovata, M'Coy. Dav. Sil. Mon., p. 38, pi. ii, figs. 19—23. 



— parallela, Phillips. Dav. Sil. Mon., p. 39, pi. ii, figs. 24—27. 



— Philipi, Dav. Dav. Sil. Sup., p. 206, pi. xvii, fig. 5. 



— pygmea, Sa/^er. Dav. Sil. Mon., p. 53, pi. ii, fig. 8. 



— quadrata, Eichwald. Dav. Sil. Sup., p. 203, pi. xvii, figs. 2, 3. 



— Ramsayi, Salter. Dav. Sil. Mon., p. 49, pi. iii, figs. 49 — 52; Sil, Sup., p. 206, pi. xvii, 



figs. 6—11, 



— Salteri, Dav. Dav. Sil. Mon., p. 53, pi, i, figs. 27—29 ; and Bud. Salt. Mon., vol. iv, p. 364, 



pi. xl, fig. 24. 



— squamosa, IIoll. Dav, Sil. Men,, p. 41, pi. ii, fig. 7. 



— striata, ^ow. Dav. Sil. Mon., p. 45, pi. iii, figs. 45 — 48. 



— Sysmondi, Salter. Dav, Sil. Mon., p. 45, pi. iii, figs, 7 — 1 1 ; Sil. Sup., pi. xvii, figs. 23, 24. 



— tenuigranulata, M'Coy. Dav. Sil. Mon., p. 37, 'pi- "> fig^- 9 — 14. 

 LiNQULELLA, Salter. Dav. Sil. Mon., p. 55. 



— Davisii, M'Cot/. Dav. Sil. Mon., p. 56, pi. iv, figs. 1 — 16. 



— ferruginea, Salter. Dav, Sil. Mon., p. 336, pi. xlix, fig. 32 — 35 ; and Sil. Sup., pi. xvii, 



fig. 35. 



— lepis, Salter. Dav. Sil. Mon., p. 54, pi. iii, figs. 54 — 58. 



— Nicholson!, Callaway. Dav. Sil. Sup., p. 208, pi. xvii, figs. 31, 32. 



— petalon. Hicks. Dav. Sil. Mon., p. 337, pi. xlix, fig. 30. 



— primseva, HicJcs. Dav. Sil. Sup., p. 209, pi. xvii, figs. 33, 34. 



Mekista, Suess. Dav. Sil. Sup., p. 103. 



— ? Circe, Barrande ? Dav. Sil. Mon., p. 116, pi. x, figs. 33—35 ; Sil. Sup., p. 105. 



— ? cymbula, Da«. Dav. Sil. Mon., p. 204, pi. xxii, figs. 28, 29. Sil, Sup., p. 138, pi. viii, figs. 6— 9. 

 Meristella, Hall. Dav. Sil. Mon., p. 107. It is not certain that we possess in our British Silurian 



rocks any authenticated species of either Meristella or Merista. Several species have 

 been provisionally classed under those two names. 



— ? angustifrons, M'Coy. Dav. Sil, Mon., p. 111, pi. x, figs. 21—27 ; Sil. Sup., pi. viii, fig. 1. 



— ? crassa. Sow. Dav. Sil. Mon., p. 117, pi. xiii, figs. 1—3 ; Sil. Sup., p. 133. 



— ? furcata, Sow. Dav. Sil. Mon., p. 119, pi. xiii, figs. 7—9 ; Sil. Sup., p. 133. 



— ? Maclareni, Haswell. Dav. SQ. Mon,, p. 116, pi, xii, fig. 20 ; Sil. Sup,, p. 133. 



— ? subundata, M'Coy. Dav. Sil. Mon,, p, 120, pi, xiii, fig. 4; Sil. Sup., p. 133, pi. vii, 



figs. 10, 11. 

 Mekistina, Hall. Dav. Sil. Sup., p. 94, 



— didyma, Dalman (as Meristella). Dav. Sil. Mon., p. 112, pi. xii, figs. 1 — 10 ; and Sil. Sup,, 



p. 94, pi. iv, figs. 20—23. 



— nitida. Hall (synonym of M. didyma). Dav. Sil. Mon,, p, 114, pi. x, fig. 28—32. 



Nucleospira, Hall. Dav. Sil. Mon., p. 104, and Sil. Sup., p. 91. 



— pisum. Sow. Dav. Sil. Mon., p. 106, pi. x, figs. 16—20; Sil. Sup., p. 91, pi. iv, 



figs. 15—18. 



Obolus, d' Eichwald. Dav. Sil.| Mon,, p. 341. I am not certain that the following species are really 

 referable to the genus Obolus. 



— ? (Obolella) Phillipsii, Holl. Dav. Sil. Mon., p. 62, pi. iv, figs, 17—19. 



— ? — plumbea, Salter. Dav. Sil. Mon., pp. 61, 341, pi. iv, figs. 20—27, pi. 1, figs, 23—24. 



— ? — — var. plicata. Hides. Dav. Sil, Mon., p. 342, pi. 1, fig. 22. 



