52 TRILOBITA. 



Phacops (Acaste) incertus, Deslongchamps, 1825. Lower Silurian 



Pebbles, New Red Sandstone, Budleigh-Sallerton, S. Devon. 



Asaphm incerUis, Deslongeli. 1825, Trans. Soc. Linn, de Calvados, vol. ii. 



p. 298, &c. pi. XX. fig. 5. 

 Phacopft {Dahnannid) incetiits, Rouault, 1851, Bull. Soc. G^ol. Fr. vol. viii. 



p. 371. 

 P. incertus, Salter, 18G4, Mon. Pal. Soc. pt. 1, p. 30, pi. i. figs. 27, 28; id. 1864, 



Quart. Joum. Geol. Soc. vol. xx. p. 291, pi. xv. fig. 4. 



Phacops (Acaste) Jainesii, Portlock, 1843. Caradoc Rocks of 



Waterford, Tyrone. 

 Phacops Jamesii, Portlock, 1843, Rep. Geol. of Tyrone and Londond. p. 28.3, 

 pi. iii. fig. 10 ; Salter, 185.3, Decade vii. Geol. Surv. Art. 1, p. 10 ; id. 1864, 

 Mon. Pal. Soc. pt. 1, p. 32, pi. i. figs. 39-41. 



Phacops (Chasmops, M'Coy ?) Jukesii, Salter, 1853. Caradoc Rocks 



of GelUgrin, aear Bala, N. Wales. 

 ? Phacops sclerops, Dalman, 1826, Palaead. t. ii. tig. Ig. 

 P. Jukesii, Salter, 1853, Decade vii. Geol. Surv. art. 1, p. 11 ; id. 18G4, Mon. 

 Pal. Soc. pt. 1, p. 36, pi. i. figs. 29, 30. 



Phacops laciniatus, Roemer. Devonian, Torquay, St. Keyne's, 



Cornwall, Germauy, and Spain. 

 Phacops laciniatus, Roem., Burm. pi. xxv. fig. 6 ; Salter & II. Woodw. 1865, 

 Cat. & Chart Foss. Crust, p. 14, fig. 86. 



Phacops (Trimerocephalus) laevis, Miinst. 1842. Upper Devonian, 



Knowl Hill, Newton BusheU, Mudstone Bay, Durlstone, &c. 

 Asaphus or Trinucleus, Sby. 1840, Geol. Trans. 2nd ser. vol. v. pi. 57. fig. 30. 

 Calymene lams, Phillips, 1841, Pal. Foss. pi. Iv. fig. 250. 

 Trimicleus Items, Miinster, 1842, Beitrage, Heft 5, t. x. fig. 6. 

 Trimerocephahis Icevis, M'Coy, 1849, Ann. Nat. Hist. vol. iv. p. 404 ; id. 1851, 

 Synopsis Woodwardian Mus. Camb. p. 178; Salter, 1864, Mon. Pal. Soc. 

 pt. 1, p. 10, pi. i. figs. 5-7. 



Phacops latifrons, Bronn, 1825. Lower Devonian, Hope and Barton, 



South Devon ; Middle Devonian, Nevpton BusheU ; Upper 

 Devonian, Barnstaple, &c. 

 Calymene latifrons and C. Schlotheimii, Broun, 1825, in Leonhard's Zeitschr. 



f. d. Miner, p. 317, t. ii. figs. 1-8. 

 C. Lntreillii, Steininger, 1834, Mem. Soc. Geol. France, vol. i. pi. ii. ; PhiUips, 



1841, Pal. Foss. fig. 249. 

 C. Schlotheimii aud C. Brongniarti, Stein, ib. pp. 350, 351. 

 C. tuberculata, Murch. 1837, Sil. Syst. pi. xiv. tig. 4. 

 Portloekia latifrons, M'Coy, 1851, Synopsis Woodw. Mus. p. 177. 

 Phacops latifrons, Sandtierger, 1850, Verstein. Rheinisch. Schichtensyst. 

 Nassau, t. i. tig. 7 ; Roemer, 1854-55, Palseontographica, vol. iii. t. ix. 

 figs. 24, 25 ; Salter, 1864, Mon. Pal. Soc. pt. 1, p. 18, pi. i. figs. 9-16. 



Phacops Llanvirnensis, Hicks, 1875. Upper Arenig, Llanvirn Quarry. 



Phacops Llanvirnensis, Hicks, 1875, Quart. Journ. Geol. Soc. vol. xxxi. p. 187, 

 pi. ix. figs. 3, 4. 



