BRITISH PALASOZOIC FOSSILS. 
Allt y Gader, near Llanfyllin, Montgomeryshire. Upper | Bala, Merionethshire (see Gelli Grin). Upper Bala. 
Bala. 
Orthis expansa (Sow.) 
— poreata (M°Coy). 
Arca Edmondiiformis (M°Coy). 
Applethwaite Common, Westmoreland. 
(Coniston limestone). 
Palxopora interstincta (Wahl. Sp.) 
Nebulipora explanata (M°Coy). 
Stenopora fibrosa (Gold. Sp.) 
Halysites catenulatus (Linn. Sp.) 
Sarcinula organum (Linn. Sp.) 
Petraia zequisuleata (M°Coy). 
Ceraurus clavifrons (Dal. Sp.) 
Chasmops Odini (Hichw. Sp.) 
Calymene brevicapitata (Portk.) 
Orthis flabellulum (Sow.) 
Strophomena pecten (Linn. Sp.) 
Upper Bala. 
Ardwell, S. of Girvan, Ayrshire. Bala Group. 
Diplograpsus pristis (His. Sp.) 
Orthis parva (Pander). 
Cycloceras bilineatum (Hall Sp.) 
Ash Gill, Westmoreland. 
Spirifera biforata. 
— — Var. fissicostata (M°Coy). 
Orthis protensa (Sow.) 
Orthoceras subundulatum (Portk ) 
Upper Bala. 
Aymestry, Herefordshire. 
Ludlow rock. 
Fistulipora decipiens (M°Coy). 
Stromatopora striatella (d’Orb.) 
Palzeopora interstincta (Wahl. Sp.) 
— — Var. a. subtubulata (M°Coy). 
— tubulata (Lonsd. Sp.) 
Favosites aspera (d’Orb.) 
— oculata (Gold. Sp.) 
Ccenites intertextus (Hichw. ) 
Strephodes vermiculoides (M°Coy). 
Arachnophyllum typus (M°Coy). 
Ptilodictya lanceolata (Gold. Sp.) 
Serpulites longissimus (Murch.) 
Pentamerus Knighti (Sow.) 
Cycloceras tenuiannulatum (M°Coy). 
Poterioceras ellipticum (M*Coy), 
— pyriforme (Sow. Sp.) 
Aymestry limestone and 
Petraia elongata (Phill. Sp.) 
Spirifera biforata (Schlot.) 
— — Var. fissicostata (M°Coy). 
Orthis callactis (Dal.) 
— crispa (M°Coy). 
— elegantula. Var. a. (Dal.) 
— plicata (Sow.) 
— testudinaria (Dal.) 
— Vespertilio (Sow.) 
Leptena transyersalis (Dal.) 
Strophomena grandis (Sow. Sp.) 
Leptagonia depressa (Dal. Sp.) 
Pleurotomaria turrita (Portk.) 
Balmae Shore, Kirkcudbright. Bala or Wenlock Group. 
Graptolites Ludensis (Murch.) 
— sagittarius (His. Sp.) 
Hemithyris diodonta (Dal. Sp.) 
— nucula (Sow. Sp.) 
Leptzena alternata (Conrad). 
Sanguinolites decipiens (M°Coy). 
— inornatus (Phill. Sp.) 
Cycloceras tracheale (Sow. Sp.) 
Beaver’s Grove, Bettws-y-Coed, N. Wales. Bala Group. 
Pentamerus globosus (Sow. Sp.) 
Orthis elegantula (Dal.) Var. a. 
Leptzena sericea (Sow.) 
Strophomena Spiriferoides (M°Coy). 
Beckfoot, Kirkby Lonsdale, Westmoreland. 
Ludlow. 
Holopella gregaria (Sow. Sp.) 
Naticopsis glaucinoides (Sow. Sp.) 
Upper 
Benson Knot, Kendal, Westmoreland. Upper Ludlow. 
Spongarium zquistriatum (M°Coy). 
— interlineatum (M°Coy). 
Uraster Ruthveni (Forb.) 
Serpulites dispar (Salt.) 
Protaster Sedewicki (Forb.) 
Cornulites serpularis (Schlot.) 
Tentaculites tenuis (Sow.) 
Trachyderma squamosa (Phill.) 
Ceratiocaris elliptica (M°Coy). 
— inornata (M°Coy). 
— solenoides (M°Coy). 
