§ 3. LISTS OF THE LOWER PALZOZOIC FOSSILS UNDER THE HEADS 
LOCALITIES, ARRANGED ALPHABETICALLY. 
Aber Hirnant, E. of Bala, N. Wales. Upper Bala. 
Orthis Hirnantensis (M°Coy). 
— sagittifera (M°Coy). 
Spirifera biforata (Schlot.) 
— — Var. fissicostata (M°Coy). 
Arca Edmondiiformis (M°Coy). 
Acton Scott, Church Stretton, Shropshire. Caradoc 
sandstone. 
Stenopora fibrosa (Gold. Sp.) 
Trachyderma levis (M°Coy). 
Calymene brevicapitata (Portk.) 
— subdiademata (M°Coy). 
Homalonotus bisulcatus (Salt.) 
Pentamerus oblongus (Sow.) 
Orthis Actonize (Sow.) 
— elegantula (Dal.) Var. a. 
-— Vespertilio (Sow.) 
Leptagonia depressa (Dal. Sp.) 
Avicula orbicularis (Sow.) 
Aldens on the Stincher, Ayrshire. Lower Bala. 
Cytheropsis Aldensis (M°Coy). 
Maclureia magna (Leseur). 
Allt ffair ffynnon, Llanfyllin, N. Wales. Upper Bala. 
Hemithyris subundata (M°Coy). 
Allt Goch, Llanfyllin, Montgomeryshire. Upper Bala. 
Paleopora tubulata (Lonsd. Sp.) 
— — Var. a. 
Favosites alveolaris (Gold.) Var. 
Stenopora fibrosa (Gold. Sp.) 
Spirigerina marginalis (Dal. Sp.) 
Hemithyris rotunda (Sow. Sp.) 
Leptzna sericea (Sow.) 
Leptagonia depressa (Dal. Sp.) 
Allt tre Ffynnon, Parish of Llanrhaydr. Upper Bala. 
Orthis retrorsistria (M°Coy). 
Allt yr Anker, Meifod, Montgomeryshire. Upper Bala. 
Stenopora fibrosa (Gold. Sp.) 
Allt yr Anker (continued). 
— — Var. a. Lycopodites (Say.) 
Petraia uniserialis (M°Coy). 
Glyptocrinus basalis (M°Coy). 
Trinucleus Caractaci (Murch.) 
— gibbifrons (M°Coy). 
Tretaspis seticornis (His. Sp.) 
Zethus atractopyge (M°Coy). 
Phacops alifrons (Salt.) 
Chasmops Odini (Eich. Sp.) 
Calymene brevicapitata (Portk.) 
Homalonotus bisuleatus (Salt. ) 
Isotelus Powisi (Murch.) 
Spirifera biforata. 
— — Var. a. lynx (Kichwald Sp.) 
— — Var. c. biforata (Schlot. Sp.) 
— — Var. d. fissicostata (M°Coy). 
Spirigerina marginalis (Dal. Sp.) 
Orthis Actoniz (Sow.) 
— elegantula (Dal.) 
— — Var. a. 
— expansa (Sow.) 
— flabellulum (Sow.) 
— plicata (Sow. Sp.) 
— porcata (M°Coy). 
— rigida (Davidson). 
— testudinaria (Dal.) 
— Vespertilio (Sow.) 
Leptzna deltoidea (Conrad.) 
— — Var. B. undata (M°Coy). 
— quinquecostata (M°Coy). 
— sericea (Sow.) 
— — Var. rhombica (M‘Coy). 
Strophomena grandis (Sow. Sp.) 
— Spiriferoides (M°Coy). 
Leptagonia depressa (Dal. Sp.) 
Lingula tenuigranulata (M°Coy). 
Modiolopsis postlineata (M*Coy). 
Turbo crebristria (M°Coy). 
Pleurotomaria lenticularis (Sow. Sp.) 
Murchisonia cancellatula (M°Coy). 
— pulchra (M°Coy). 
— simplex (M°Coy). 
Bellerophon subdecussatus (M°Coy). 
OF THE 
