TKILOBITA. 35 



Dikelocephalus (Centropleura ?) furca, Salter, 18(50. Upper Tremadoc, 



Moel-y-gest', and Penmorfa, N. Wales. 

 Dikelocephalus {Centropleura'^) furca, Salter, 1800, Mem. Geol. Surv. vol. iii. 

 pp. 303 & 304, pi. vi. fig. 4, & pi. viii. ligs. 9, 10. 



Dikelocephalus? (Centropleura?), sp., Salter, ISGO. Upper Lingula- 



Flags, Ogof-ddu, Criccieth, N. Wales. 



Dikdocepliahts? (Cwi^ro/jfewrrt?), sp., Salter, 1800, Mem. Geol. 8urv. vol. iii. 

 p. 305, pi. V. fig. 20. 



DIONIDE, Barrande, 1847. 



Dione, Barrande, 1840, Not. Prelim, p. .32, Trilob. Bohm. 



Dionide, Barrande, 1847, N. Jahrb. f. Miner. Heft iv. p. 391 ; Salter, 1800, 



Mem. Geol. Sm-v. vol. iii. p. 321. 

 Polytomunis, Corda, 1847, I'rodr. p. 37. 

 Dutribtdion. Lower Silurian. 



Dionide atra, Salter, 1860. Lower Llandeilo, Ty-obry. 



Dionide atra, Salter, 1800, Mem. Geol. Sm'v. vol. iii. p. 321, pi. 11«. fig. 0. 



ECCOPTOCHILE, Corda, 1847. 



Cryphceus, M'Coy, 1849, Ann. & IMag. Nat. Hist. 2ud ser. vol. iv. p. 400. 

 Eccoptochile, Corda, 1847, Bohm. Trilob. Prodr. p. 129, tab. vi. fig. 69 ; 

 M'Coy, 1855, Pal. Foss. p. 155 ; H. Woodw. & Salter, 1805, Cat. & Chart 

 Foss. Crust, p. 13. 

 Distribution. Lower Silurian. 



EccoptocMle Sedgwickii, M'Coy, 1855. Lower Silurian, Builtb, 



Eadnorshire. 

 CryplKcus Sedyicickii, M'Coy, 1849, Ann. & Mag. Nat. Hist. ser. 2, vol. iv. 



p. 400. 

 Eccoptochile Sedf/wickit, M'Coy, 1855, Pal. Foss. p. 155, pi. i. F. fig. 14; II. 

 Woodw. & Salter, 1805, Cat. & Chart Foss. Crust, p. 13. 



ENCRINURUS, Emmrich, 1845. 



Entojnostracites, Wahlenb. 1821, Act. Soc. Sci. Upsal. vol. viii. p. 32. 



Calymcne, Brong. 1822, Crust. Foss. ; Murch. Sil. Syst. p. 055. 



Phacops, Emmrich, ls.'ii>, Dissert. Trilob. i. p. 20. 



AaapJtus, Buckland, 1830, Bridgewater Treatise. 



Amphion, I'ortlock, 184.'], Report Geol. Londonderry, p. 291. 



Aiitpyx, Portloek, 1843, Report Geol. Londonderry," p. 258. 



Cybcle, Salter, 1848, Mem. Geol. Surv. vol. ii. pi. 1 ; Pletcher, 1850, Quart. 



Jouru. Geol. Soc. vol. vi. p. 404. 

 Zethu>;, M'Coy, 1851, Pal. Foss. fasc. i. p. 150. 



Encrinurus, Salter, 1853, Geol. Surv. Decade vii. ; Murch. 1807,Siluria,p.517. 

 Distribution. Silurian. 



Encrinurus multiseginentatus, Portl., sp., 1 843. Lower Silurian, Kclley, 



Tyrone, Ireland. 

 Amphion muUiseymentatus, Portloek, 1843, Geol. Report, p. 291, t. 3. fig. G. 

 Ampy.v? boceatux, Portloek, 1843, ib. p. 202, pi. iii. fig. 11. 

 Erurinurus multisefjmentatui<, Salter, 1853, Decade vii. p. 4 : Murch. lt-07, 

 Silui'ia, p. 517. 



