152 TRILOBITA. 



Palaeoz. Foss. (1851), pi. i F, f. 12, p. 154. Coniston Limestone ; 

 Applethtuaite Common. 



Sphserexochus mirus, Beyrich, J. W. Salter, Mon. Biit. Tril. 

 (1864), pi. vi, f. 6 g, p. 76. Wenlock Limestone; Malvern. 

 Fletcher Collection. 



Staurocephalus murchisoni, Barrande, F. McCoy, Brit. Palaeoz. 

 Foss. (1851), pi. i F, f. 15, 15 a, p. 153. J. W. Salter, Mon. 

 Brit. Tril. (1865), pi. vii, f. 19, p. 84. Middle Bala; Rhiwlas. 



Tretaspis fimhriatus, v. Trinucleus fimbriatus. 



Trinodus agnostiformis, v. Agnostus agnostiformis. 



T. tardus, v. Agnostus agnostiformis. 



Trinucleus concentricus (Eaton). T. gibbifrons, F. McCoy, A. 

 M. N. H. ser. 2, iv (1849), p. 411, and Contrib. Brit. Pal. 

 (1854), p. 149, and Brit. Palaeoz. Foss. (1851), pi. i E, f. 14, 

 14 a, p. 145. Llandeilo Beds ; Golden Grove, Llandeilo. This 

 specimen cannot be found. 



T. etheridgei, H. Hicks, Q. J. G. S. xxxi (1875), pi. ix, f. 6, 



p. 182. Llanvirn Beds; Llanvirn Qtmrry. Presented by Dr 

 H. Hicks. 



T. fimbriatus, Murchison. Tretaspis fimbriatus, F. McCoy, 

 Brit. Palaeoz. Foss. (1851), pi. i E, f 16, 16 a, p. 146. Llandeilo 

 Beds ; Pencerrig, near Builth. 



T. gibbifrons, v. Trinucleus concentricus. 



T. ramsasri, H. Hicks, Q. J. G. S. xxxi (1875), pi. x, f 2, p. 183. 

 Upper Arenig ; Porth-hayog. Presented by Dr H. Hicks. 



Trochurus nodulosus, v. Lichas nodulosus. 



Zethus atractopyge, v. Cybele verrucosa. 



Z. rug OS m, v. Cybele rugosa. 



Z. sexcostatus, v. Encrinurus sexcostatus. 



