LISTS OF THE LOWER PALZEOZOIC FOSSILS. 
Presteign, Radnorshire. Lower Ludlow*. 
Hemithyris ? hemisphezerica (Sow. Sp.) 
— Wilsoni (Sow. Sp.) 
Pentamerus oblongus (Sow.) 
Pump Saint, near Lampeter, Caermarthenshire. Upper 
Bala. 
Diplograpsus pristis (His. Sp.) 
Pwllheli, Caernarvonshire. Upper Bala. 
Tentaculites annulatus (Schlot.) 
Trinucleus Caractaci (Murch.) 
— — Var. elongatus (Portk.) 
Encrinurus punctatus (Briinn. Sp.) 
Portlockia apiculata (Salt.) 
Calymene subdiademata (M°Coy). 
Homalonotus bisuleatus (Salt.) 
Hemithyris diodonta (Dal. Sp.) 
— hemispheerica (Sow. Sp.) 
— Upsilon (Bar. Sp.) 
Pentamerus levis (Sow.) 
Orthis elegantula (Dal.) Var. a. 
— plicata (Sow.) 
Leptzena sericea (Sow.) 
Strophomena compressa (Sow. Sp.) 
— Spiriferoides (M°Coy). 
Ravenstone Dale, Westmoreland: 
ton limestone). 
Tentaculites annulatus (Schlot.) 
Zethus atractopyge (M°Coy). 
Homalonotus bisulcatus (Salt.) 
Isotelus Powisi ( Murch.) 
Spirifera biforata (Schlot.) 
— — Var. D. fissicostata (M°Coy). 
Strophomena grandis (Sow. Sp.) 
— Pecten (Linn. Sp.) 
Pterinea tenuistriata (M°Coy). 
Upper Bala (Conis- 
Rhiwargor, near Llanwddyn, Montgomeryshire. Upper 
Bala. 
Trinucleus Caractaci (Murch.) 
— gibbifrons (M°Coy). 
Portlockia apiculata (Salt.) 
Spirifera biforata (Schlot.) 
— — Var. 8. dentata (Pand. Sp.) 
Orthis Actonize (Sow.) 
371 
| Rhiwargor (continued). 
Orthis elegantula (Dal.) Var. a. 
— parva (Pander). 
— Vespertilio (Sow.) 
Strophomena Spiriferoides (M°Coy). 
Leptagonia depressa (Dal. Sp.) 
Rhiwlas, N. of Bala, Merionethshire. Upper Bale. 
Caryocystites granatum ( Wahl.) 
Trinodus agnostiformis (M°Coy). 
— tarda (Bar. Sp.) 
— latus (Portk.) 
Tretaspis seticornis (His. Sp.) 
Lichas laxata ¢ (M°Coy). 
Staurocephalus Murchisoni (Bar.) 
Ceraurus octo-lobatus (M°Coy). 
— clavifrons (Dal. Sp.) 
Zethus sexcostatus (Salt. Sp.) 
Isotelus laticostatus (Green Sp.) 
Illenus Davisi (Salt.) 
Orthoceras vagans (Salt.) 
Rhosfawr, N. of Glog, Llanfyllin, N. Wales. 
Bala. 
Spirigerina marginalis (Dal. Sp.) 
Orthis elegantula (Dal.) Var. a. 
— plicata (Sow. Sp.) 
Leptzena sericea (Sow.) 
Leptagonia depressa (Dal. Sp.) 
Upper 
Rother Bridge (above). 
stone). 
Portlockia apiculata (Salt. ) 
Calymene brevicapitata (Portk.) 
Orthis Vespertilio (Sow.) 
Leptzna minima (Sow.) 
— sericea (Sow.) 
Upper Bala (Coniston lime- 
Upper Bala (Coniston flags). 
Graptolites sagittarius (Linn, Sp.) 
Rother Bridge (below). 
Rother Heath, Kendal, Westmoreland. Upper Bala. 
Stenopora fibrosa (Gold. Sp.) 
Saint Helen’s, Low Furness. Upper Bala (Bala lime- 
stone). 
Stenopora fibrosa (Gold. Sp.) 
* The Caradoc sandstone near this spot has not been noted in the list of localities, but doubtless furnished the specimen 
of Pentamerus oblongus. 
3 B2 
