BRITISH SILURIAN BRACHIOPODA. 239 



Pentamerus, rotundns, Soiv. Dav. Sil. Mon., p. 150, pi. xv, figs. 9 — 11; Sil. Sup., p. IfiS, pi. ix, 

 figs. 6—9. 



— Schallockiensis, Dav. Dav. Sil. Sup., p. 164, pi. ix, fig. 26. 



— undatus. Sow. Dav. Sil. Mon., p. 155, pi. xix, figs. 4 — 9; Sil. Sup., p. 162, pi. ix, 



figs. 10—20. 

 Pholidops, Hall. Dav. Sil. Sup., p. 216. 



— (Crania) implicata, 6'ow. Dav. Sil. Mon., p. 80, pi. viii, figs. 13—18; Sil. Sup. p. 216, 



pi. xvii, fig. 48. 

 PoRAMBONiTES, Pander. Dav. Sil. Men., p. 195. 



— intercedens. Pander. Dav. Sil. Mou., p. 195 (in part), pi. xxv, fig. 16 (not figs. 17, 

 18, 19),pl. xxvi, figs. 1, 2, 3. 



Retzia, Kinff. Dav. Sil. Mon,, p. 124 ; Sil. Sup., p. 92. 



— Baylei, Dav. Sil. Mon., p. 127, pi. xii, figs. 23—25, 27. 



— Bouchardi, Dav. Dav. Sil. Mon., p. 127, pi. xii, figs. 26—28, 30. 



— (Rliynch.) cemula, Salter. Dav. Sil. Mon.,p. 188, pi. xxiv, fig. 21 ; Sup., p. 160, pi. x, fig. 17 ? 



— Salteri, Dav. Dav. Sil. Mon., p. 125, pi. xii, figs. 21, 22 ; Sil. Sup., p. 92, pi. iv, figs 12—14. 

 Rhynchonella, Fischer. Dav. Sil. Mon., p. 163; Sil. Sup., p. 147. 



— Balcletcbiensis, Z)aw. Dav. Sil. Sup., p. 160, pi. x, figs. 15, 16 ; and p. 200, pi. xi, fig. 23. 



— Beltiana, Dav. Dav. Sil. Mon., p. 189, pi. xxiv, fig. 22. 



— bidentata. His. Dav. Sil. Mon., pi., xxi, fig. 22 ; Sil. Sup., p. 150, pi. x, fig. 3. 



— borealis, 5'cA/. Dav Sil. Mon., p. 174, pi. xxi, figs. 14— 27 (excluding fig. 23, which 



belongs to Rh. diodonta, also B. bidentata from Synonyms) ; Sup., p. 148, pi. x, fig. 25. 



— Callayana, Dav. Dav. Sil. Sup., p. 159, pi. x, fig. 18. 



— cuneata, Dalman. Dav. Sil. Mon., p. 164, pi. xxi, figs. 7 — 11 ; Sil. Sup., p. 152, pi. x, 



figs. 9—10. 



— cuneatella, Dav. Dav. Sil. Sup., p. 200, pi. x, fig. 11. 



— Dayi, Dav. Dav. Sil, Sup., p. 152, pi. x, fig. 2. 



— decemplicata, Sow. Dav. Sil. Mon., p. 177, pi. xxiii, figs. 20—24; Sil. Sup., p. 202, 



pi. xi, fig. 27. 



— deflexa. Sow. Dav. Sil. Mon., p. 178, pi. x.xii, figs. 24—27 ; Sup., p. 156, pi. x, fig. 23. 



— diodonta, Dalman. Dav. Sil. Sup., p. 151, pi. x, fig. 4. 

 Edgelliana, Dav. Dav. Sil. Mon., p. 190, pi. xxiv, fige. 27, 28. 



— Glassiana, Dav. (Atrypa depressa. Sow., Athyris ? JJav.). Dav. Sil. Mon., p. 123, 



pi. xii, figs. 11 — 15; pi. xiii, fig. 6 ; Sup. pp. 155, 219, pi. x, fig. 22. (The name Glassii 

 having already been applied to a Carboniferous form, we have given the name Glassiana to 

 the Silurian one.) 



— Girvaniensis, Dav. Dav. Sil. Sup., p. 155, pi. x, fig. 26. 



— Jackii, Dav. Dav. Sil. Sup., p. 158, pi. ix, fig. 30. 



— Lapworthi, Dav. Dav. Sil. Mon., p. 154, pi. x, fig. 7. 



— Lewisii, Dav. Dav. Sil. Mon., p. 180, pi. xxiii, figs. 25 — 28. 



— Llandoveriana, Dav. Dav. Sil. Mon., p. 184, pi. xxiv, figs. 8 — 13; Sil. Sup., p. 157, 



pi. x, figs. 32—37. 



— Maccoyana, Dav. Dav. Sil. Mon., pi. xxv, fig. 17 — 19 (not 16, or pi. xxvi, figs. 1 — 3) ; 



Sil. Sup., p. 161, pi. viii, fig. 33. 



— nana, Salter. Dav. Sil. Mon,, p. 192, pi. xxiv, fig, 26. 



— nasuta, ili'Co?/. Dav. Sil, Mon., p. 173, pi. xxiii, fig. 10; Sil. Sup., p. 160, pi. x, 



figs. 20, 21 ? 



32 



