TRILOBTTA. 



47 



Olenus (Sphserophthalmus) expansus, Salter, 1873. U. Lingula-Flags, 



Moel Gron. 

 Olenux {Spliaroplithulmits) cxpanms, Salter, 1873, Cat. Camb. & Sil. Foss. 

 p. 12. 



Olenus (Sphaerophthalmus) flagellifer, Angelin ? U. Lingula-Flags, 



Carreg-wen. 

 Olenus (Sphasrophf/ialmiis) Jluijellifer, Angelio, ralreont. Suecica, pi. xxvi. 

 tig. 7 ; Salter, 1S(;4, Decade xi. CTeol. Surv. pi. viii. tigs. 7, 8 ; id. 1866, Mem. 

 Geol. Surv. vol. iii. p. 301, pi. v. tigs. 8, 9 ; id. 1873, Cat. Camb. & Sil. Foss. 

 p. 11. 



Olenus gibbosus, Wahlb., Belt, 1867. Lower Lingula Flags, 



River Mawddach, N. Wales. 



Olenus gihhosus, Belt, 1867, Geol. Mag. vol. iv. p. 295, pi. xii. fig. 5, a, b ; 

 Salter, 1873, Cat. Camb. & Sil. Foss. p. 7. 



Olenus (^SpliaBrophthalmus) humilis, Phill. 1848. Upper Lingula-Flags, 



Elack Shales, Malvern, Moel Gron, Upper Mawddach. 



Olenus humilis, Phill. 1848, Mem. Geol. Surv. vol. ii. pt. 1, p. 55, tigs. 4-6. 



0. (Spha-roph.) humilis, Salter, 1865, Decade xi. Geol. Sm'v. pi. viii. tigs. 9-11 ; 



id. 1K36, Mem. Geol. Surv. vol. iii. p. 302, pi. v. fig. 12 ; id. 1873, Cat. Camb. 



& Sil. Foss. p. 12. 



Olenus impar, Salter, 18G6. Upper Tremadoc Slate, Penclogwyn, 



near Portmadoc. 

 Olenus impar, Salter, 1866, Mem. Geol. Surv. vol. iii. p. 302, pi. viii. fig. 4. 



Olenus micrurus, Salter, 1849. Lower Lingula-Flags, X. Wales, 



Olenus )nicrHn;,<, Salter, 1849, Decade ii. Geol. Sui'v. pi. ix. ; id. 1859, Siluria, 

 2nd ed. p. 45, foss. 4. fig. 2 ; id. 1865, Lyell's Elements of Geol. 6th ed. 

 p. 573, fig. 663; id. Mem. Geol. Surv. vol. iii. p. 300, pi. ii. figs. 5, 6; 

 id. 1873, Cat. Camb. & Sil. Foss. p. 11. 



Olenus (Sphserophtlialmus ) pecten, Salter, 1865. U. Lingula-Flags, 



Middle Cambrian, White-leaved Oak, Malvern. 



Olenus {Sphaerophthalmus) pecten, Salter, 1865, Decade xi. Geol. Surv. pi. viii. 



figs. 12, 13 ; id. 1865. Quart. Journ. Geol. Soc. vol. xxi. p, 480, figs. 4, 5; 



id. 1873, Cat. Camb.'& SU. Foss. p. 12. 



Olenus Plantii, Salter, 1873. Upper Lingula-Flags, Craig- y-Dinas 



and Moel Gron. 

 Olenus Plantii, Salter, 1873, Cat. Camb. & Sil. Foss. p. 11. 



Olenus scarabaBoides, Wahlb. 1822. Upper Lingula-Flags, Tremadoc, 



JN". Wales, and Malvern. 



Etitomostracites scarahceoicles, Wahl. 1822, Nova Act. Soc. Upsal. vol. viii. 



t. i. fig. 2. 

 Olenm scarahccoides, Dalman, 1827, Palsead. p. 257; Salter, 1859, Sihiria, 



2nd edit. Append, p. 540 ; id. 1805, Deciide xi. Geol. Surv. p. 5, pi. viii. 



tigs. 1-3 ; id. 1866, Mem. Geol. Surv. vol. iii. Append, p. 54 j, pi. v. figs. 2-5. 

 Paradoxides scarabaoides, Brong. 1822. Crust. Foss. p. 34, t. 3. fig. 5. 

 Peltura scarabaoides, Milne-Edw. 1840, Crust, vol. iii. p. .344; Angelin, 



1855, Palaeont. Suecica, pi. xxv. fig. 8. 



