368 
Middleton Park (continued). 
Chonetes lata (V. Buch Sp.) 
Pterinea demisa (Conrad Sp.) 
— lineata (Gold.) 
— tenuistriata (M°Coy). 
Modiolopsis Nilsoni (His. Sp.) 
Milltir Cerrig Llangynnog, Montgomeryshire. Lower 
Bala. 
Beyrichia complicata (Salt.) 
Orthis elegantula (Dal.) Var. a. 
— retrorsistria (M°Coy). 
Leptzena sericea (Sow.) 
Nucula levata (Hall). 
Moel Seisiog, Llanrwst, Denbighshire. Caradoc sand- 
stone. 
Graptolites sagittarius (Linn. Sp.) 
Phacops Downingize (Murch. Sp.) 
Spirifera percrassa (M°Coy). 
Orthis elegantula (Dal.) Var. a. 
Leptena sericea (Sow.) 
— tenuissimestriata (M°Coy). 
Strophomena compressa (Sow. Sp.) 
Area ? Edmondiiformis (M*Coy). 
Orthoceras subundulatum (Portk.) 
Moel Uchlas, Montgomeryshire. Upper Bala. 
Nebulipora lens (M°Coy). 
Stenopora fibrosa (Gold. Sp.) 
— — Var.a. Lycopodites (Say). 
Beyrichia complicata (Salt.) 
Orthis elegantula (Dal.) Var. a. 
— expansa (Sow.) 
— flabellulum (Sow.) 
— testudinaria (Dal.) 
— Vespertilio (Sow.) 
Lepteena sericea (Sow-) 
Strophomena compressa (Sow. Sp.) 
Pterinea lineata (Gold.) 
Moel-y-Garth, Welchpool, Montgomeryshire. 
Bala. 
Strophomena Spiriferoides (M°Coy). 
Upper 
Moel y Garnedd Uchaf, Bala Lake. Lower Bala. 
Tretaspis seticornis (His. Sp.) 
Orthis flabellulum (Sow.) 
— Vespertilio (Sow.) 
BRITISH PALAXOZOIC FOSSILS. 
Mortimer’s Cross, Aymestry. Upper Ludlow. 
Hemithyris nucula (Sow. Sp.) 
Orthis lunata (Sow.) 
Chonetes lata (V. Buch Sp.) 
Lingula lata (Sow.) 
Pterinea hians (M°Coy). 
Leptodomus impressus (Sow. Sp.) 
Litorina undifera (M*Coy). 
Orthoceras subundulatum (Portk.) 
Mullock Quarry, Dalquorrhan, near Girvan, Ayrshire. 
Upper Bala. 
Paleeopora favosa (M°‘Coy). 
— subtilis (M°Coy). 
— tubulata (Lonsd. Sp.) 
Favosites alveolaris (Gold.) 
Petraia equfsulcata (M*Coy). 
— subduplicata (M°Coy). 
Ptilodictya costellata. 
Tentaculites ornatus (Sow.) 
Harpidella megalops (M°Coy). 
Calymene subdiademata (M°Coy). 
Illenus Rosenbergi (Eichw.) 
Hemithyris angustifrons (M*Coy). 
— hemispheerica (Sow. Sp.) 
— — Var. Scotica (M*Coy). 
Orthis confinis (Salt.) 
— elegantula (Dal.) Var. a. 
— parva (Pander). 
— — Var. avellana. 
— reyersa (Salt.) 
— testudinaria (Dal.) 
Lepteena alternata (Conrad). 
Orthonotus semisuleatus (Sow. Sp.) 
Holopella tenuicincta (M°Coy). 
Trochus helicites (Sow.) 
— Moorei (M°Coy). 
Euomphalus tricinctus (M°Coy). 
Eccyliomphalus Scoticus (M°Coy). 
Murchisonia cancellatula (M°Coy). 
— pulchra (M°Coy). 
— simplex (M°Coy). 
Bellerophon dilatatus (Sow.) 
— subdecussatus (M*Coy). 
Orthoceras tenuistriatum (Miunst.) 
Mynydd Mawr, Caermarthenshire. Upper Bala. 
Beyrichia complicata (Salt.) 
