370 
Penlan, Llandovery (continued). 
Lepteena quinquecostata (M*Coy). 
Leptagonia depressa (Dal. Sp.) 
Penllys, N. W. of Meifod, two miles EK. of Llanfi- 
hangel. Bala Group. 
Stenopora fibrosa (Gold. Sp.) 
Lepteena sericea (Sow.) 
Penmachno, Caernaryonshire. 
Orthis expansa (Sow.) 
Upper Bala. 
Fenmorfa, Tremadoc, N. Wales. 
Lingula Davisii (M*Coy). 
— ovata (M‘Coy). 
Tellinomya lingulicomes (M°Coy). 
Lingula flags. 
Penny Bridge ‘Hills W. of), N. Lancashire. 
Ludlow. 
Cardiola interrupta ( Brod.) 
Lower 
Pentre cwm dda, S. of Glyn Diffwys, N. Wales. 
Upper Baia. 
Diplograpsus foliaceus (Murch. Sp.) 
Siphonotreta micula (M°Coy). 
Orthis retrorsistria (M*Coy). 
Lepteena sericea (Sow.) 
Pen y Craig, Llangynyw, Montgomeryshire. 
Bala. 
Upper 
Graptolites Ludensis (Murch. ) 
Favos'tes alveolaris (Gold.) 
Halys.tes catenulatus (Linn. Sp.) 
Petraia uniserialis (M°Coy). 
Ptilodictya explanata (M°Coy). 
— lanceolata (Gold. Sp.) 
Trinucleus gibbifrons (M*Coy). 
Spirifera biforata (Schlot.) 
— — Var. a. lynx (Hichwald Sp.) 
Spirigerina marginalis (Dal. Sp.) 
Hemithyris subundata (M*Coy). 
Pentemerus undatus (Sow. Sp.) 
Lepteena quinquecostata (M°Coy). 
Pen y Park, Llanfyllin. Upper Bala. 
Beyrichia complicata (Salt. ) 
Orthis porcata (M*Coy, Var.) 
— testudinaria (Dal.) 
Potter’s Fell, Kendal, Westmoreland. 
BRITISH PALA OZOIC FOSSILS. 
Pen y gaer, Cerrig y Druidion, Denbighshire. Lower 
Bala. 
Orthis retrorsistria (M°Coy). 
Strophomena Spiriferoides (M°Coy). 
Plas Madoc, N. of Llanrwst. Caradoc sandstone. 
Orthis elegantula (Dal.) Var. a. 
Mytilus unguiculatus (Salt.) 
Clidophorus ovalis (M*Coy). 
Nucula levata (Hall). 
Holopella gregaria (Sow. Sp.) 
Pont-ar-y-llechau, near Llangadoc. 
Pterinea demissa (Conrad). 
— subfaleata (Conrad). 
— tenuistriata (M°Coy). 
Upper Ludlow. 
Pont-y-Glyn, Diffwys, W. of Corwen, Denbighshire. 
Upper Bala. 
Nebulipora lens (M‘Coy). 
Stenopora fibrosa (Gold. Sp.) 
Trochurus nodulosus (Salt. Sp.) 
Phacops alifrons (Salt.) 
Illeenus Davisi (Salt.) 
Pseudocrania divaricata (M°Coy). 
Spirifera biforata (Schlot.) 
— Var. a. lynx (Hichwald Sp.) 
Spirigerina marginalis (Dal. Sp.) 
Orthis Actoniz (Sow.) 
— elegantula (Dal.) 
Leptzna deltoidea (Conrad). 
— — Var. undata (M°Coy). 
— sericea (Sow.) 
| Pont-y-Meibion, two miles S. of Llansantfraid, on the 
Ceiriog. Lower Bala. 
Beyrichia complicata (Salt.) 
Leptena tenuissimestriata (M°Coy). 
Porth Breiddyn, below Welchpool. Wenlock shale. 
Homalonotus bisuleatus (Salt.) 
Upper Ludlow. 
Uraster hirudo (Forb.) 
Discina rugata (Sow. Sp.) 
Spirifera subspuria (d’Orb.) 
Hemithyris navicula (Sow. Sp.) 
Chonetes lata (V. Buch Sp.) 
