346 
BRITISH PALASOZOIC FOSSILS. 
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277 
Genera and Species, with the localities represented by the 
numbers of the preceding List, under each 
Geological Group. 
DOLABRA. 
— elliptica (M°Coy). 
Upper Ludlow, 236. 
— obtusa (M°Coy). 
Upper Ludlow, 236. 
ANODONTOPSIS. 
— angustifrons (M°Coy). 
Upper Ludlow, 18—130. 
— bulla (M°Coy). 
Upper Ludlow, 130. 
— levis (Sow. Sp.) 
Upper Ludlow, 155. 
— quadratus (M°Coy). 
Upper Ludlow, 2386. 
— securiformis (M°Coy). 
Upper Ludlow, 18. 
LYRODESMA. 
— plana (Conrad). 
Upper Bala, 270. 
CLIDOPHORUS. 
— ovalis (M°Coy). 
Caradoc sandstone, 209. 
Upper Bala, 88. 
Bala Group, 51. 
— planulatus (Conrad Sp.) 
Wenlock shale, (126). 
Upper Bala, (126). 
TELLINOMYA. 
— lingulicomes (M°Coy). 
Lingula flags, 201. 
ORTHONOTUS (Sow. Sp.) 
— cymbiformis (Sow. Sp.) 
Upper Ludlow, 119—31. 
— nasutus (Conrad Sp.) 
Caradoc sandstone, 121. 
— semisulcatus (Sow. Sp.) 
Upper Ludlow, 130. 
Upper Bala, 182. 
SANGUINOLITES. 
— anguiliferus (M°Coy). 
Upper Ludlow, 18. 
— decipiens (M*Coy). 
Upper Ludlow, 18—155. 
Bala or Wenlock Group, 15. 
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numbers of the preceding List, under each 
Geological Group. 
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SANGUINOLITES (continued). 
— tnornatus (Phill. Sp.) 
Bala or Wenlock Group, 15. 
LEPTODOMUS. 
— amygdalinus (Sow. Sp.) 
Upper Ludlow, 163—18—23. 
Ludlow Group, 75. 
— — Var. retusus. 
Upper Ludlow, 163. 
— globulosus (M°Coy). 
Upper Ludlow, 245—130—18. 
— impressus (Sow. Sp.) 
Upper Ludlow, 181. 
— truncatus (M°Coy). 
Upper Ludlow, 18. 
— undatus (Sow. Sp.) 
Upper Ludlow, 18. 
GRAMMYSIA. 
— cingulata (His. Sp.) 
— — Var.a. 
Upper Ludlow, 18. 
Wenlock limestone, 91. 
— — Var. p. triangulata (Salt.) 
Upper Ludlow, 18—155—2386. 
— — Var. y. obliqua (M°Coy). 
Upper Ludlow, 117. 
— eatrasulcata (Salt. Sp.) 
Upper Ludlow, 18. 
— rotundata (Salt.) 
Upper Ludlow, 18. 
CARDIOLA. 
— sibrosa (Sow.) 
Ludlow Group, 194. 
— interrupta (Brod.) 
Ludlow Group, 75. 
Lower Ludlow, 136—94—202—185. 
Wenlock shale, 268—151—45—165. 
Upper Bala, 30—252—114— 287. 
ARCA. 
— Edmondiiformis (M°Coy). 
Upper Ludlow, 18. 
Wenlock shale, 151. 
Caradoc sandstone, 177. 
Upper Bala, 8—57—1. 
