LISTS OF THE LOWER PALA®OZOIC FOSSILS. 
Maes Meillion, S. of Bala, N. Wales. 
(Bala limestone). 
Palzeopora megastoma (M°Coy). | 
Trinucleus latus (Portk.) | 
Portlockia apiculata (Salt.) 
Homalonotus bisuleatus (Salt.) 
Spirifera biforata (Schlot.) 
— — Var. a. lynx (Eichwald Sp.) 
Orthis Actonize (Sow.) 
— parva (Pander). 
— plicata (Sow. Sp.) 
Upper Bala 
Maes-y-fallen, Bala. Upper Bala. 
Spirifera biforata (Schlot.) | 
— — Var. a. lynx (Kichwald Sp.) 
Orthis elegantula (Dal.) 
— Hirnantensis (M°Coy). 
— testudinaria (Phill.) 
Malverns, Worcestershire. Lower Ludlow, or Wen- 
lock shale. 
Vioa prisca (M°Coy). 
Palzeopora interstincta (Wahl. Sp.) 
Fayosites aspera (d’Orb.) 
Pterinea demissa (Conrad Sp.) 
Strophomena simulans (M°Coy). 
Mandinam, Caermarthenshire. Upper Bala. 
Pentamerus lens (Sow. Sp.) 
— microcamerus (M°Coy). 
— undatus (Sow. Sp.) 
Turbo crebristria (M*Coy). 
— Williamsi (Sow. Sp.) 
Mathyrafal, S. of Meifod, Montgomeryshire. 
Bala. 
Paleopora megastoma (M°Coy). 
Favosites alveolaris (Gold.) 
— — Var. multipora (Lonsd.) 
Stenopora fibrosa (Gold. Sp.) 
Caninia turbinata (Linn. Sp.) 
Halysites catenulatus (Linn. Sp.) 
Petraia uniserialis (M°Coy). 
Ptilodictya costellata (M*Coy). 
— explanata (M°Coy). 
Fenestella subantiqua (M°Coy). 
Beyrichia complicata (Salt.) 
Upper 
Mathyrafal (continued). 
Encrinurus punctatus (Briinn. Sp.) 
Calymene brevicapitata (Portk.) 
Spirifera biforata (Schlot.) 
— — Var. c. biforata (Schlot.) 
— — Var. d. fissicostata (M*Coy). 
— percrassa (M°Coy). 
Spirigerina marginalis (Dal. Sp.) 
Hemithyris Lewisi (Davidson Sp.) 
— subundata (M°Coy). 
Orthis Actoniz (Sow.) 
— elegantula (Dal.) 
— expansa (Sow.) 
— hybrida (Sow.) 
— parva (Pander). 
plicata (Sow. Sp.) 
protensa (Sow.) 
testudinaria (Dal ) 
turgida (M°Coy). 
Leptzena quinquecostata (M‘Coy). 
— sericea (Sow.) 
— — Var. rhombica (M°Coy). 
Strophomena antiquata (Sow. Sp.) 
— grandis (Sow. Sp.) 
Leptagonia depressa (Dal. Sp.) 
Murchisonia pulchra (M°Coy). 
May Hill, Gloucestershire. 
doc sandstone. 
Halysites catenulatus (Linn. Sp.) 
Encrinurus punctatus (Briinn. Sp.) 
Spirigerina reticularis (Linn. Sp.) 
Hemithyris navicula (Sow. Sp.) 
Pentamerus microcamerus (M‘Coy). 
Orthis turgida? (M‘Coy). 
Leptzena transyersalis (Dal.) 
Strophomena pecten (Linn. Sp.) 
Leptagonia depressa (Dal. Sp.) 
Euomphalus funatus (Sow.) 
Wenlock arits and Cara- 
Middleton Park, Caermarthenshire. Wenlock shale. 
Favyosites alveolaris (Gold.) 
Enerinurus punctatus (Briinn. Sp.) 
Odontochile longicaudata (Murch. Sp.) 
Homalonotus Knighti (Kcnig.) 
Spirigerina reticularis (Linn, Sp.) 
Orthis expansa (Sow.) 
Strophomena pecten (Linn. Sp.) 
