LOWER LUDLOW GROUP. 169 






ae Reference ue MoCor’s Names and References; Observations, &c. Numbers and Localities. 
Drawers. Synopsis: and Figures of Genera. 
Ge4 Leptena, p. 243. Strophomena euglypha, Dalm. sp. (Si- | b. 897, Leintwardine. 
luria, 3rd ed. pl. 20, fig. 19). 
Ge4 Leptena, p. 235. Chonetes minima, Sow. (Siluria, 8rd ed. | b.898, above RotherBridge. 
pl. 20, fig. 16). 
Ge5 Chonetes, p. 249. Chonetes lata, Von Buch. (C. striatella, | b. 900, Sedgley, F. C. 
Dalm. sp. Davidson, Sil. Brach. p. 331, 
t. 49, figs. 23—26). 
LAMELLIBRANCHIATA. 
Pseudaxinus, Salter. 
Ged Anodontopsis, p. 272. Pseudaxinus securiformis, McCoy. b. 899, Dudley, F.C. 
Bi ier be. 9: Anodontopsis, McCoy. A genus of 
thin shells, allied to Modiolopsis, 
but with very much enlarged pos- 
terior area. (The following may not 
belong to the genus.) 
Ged Pl. 1 K, fig. 10, p. 272. Anodontopsis quadratus, Salter, sp. | a. 944, a. 945, Dudley, F.C. 
(Mem. Geol. Surv. Vol. 11. Pt. 1, p. 






363, pl. 20, fig. 1). 
Ge p- 263. Pterinea Sowerbyi, McCoy (Siluria, | a. 808, Dudley, F.C.; a. 
Ge5 — = 2nd ed. pl. 23, fig. 15). 929, Leintwardine. 
Ge6é PE Wd, figs. 1,2) p. 261. Pterinea pleuroptera, Conrad. sp. a. 952, Park Lane, Llan- 
deilo. 
Ge5 Pterinea Condor, n. sp. Very wide | a. 809, a. 810, Dudley, 
hinge-line three inches broad. 19, 
Ged Pterinea lineatula, D’Orb. (Avicula | b. 728, Dudley, F. C. 
lineata, Sow. Sil. Syst. ; Siluria, 2nd 
ed. pl. 23, fig. 16). 
Ge 6 : Pterinea retrofiexa, Wahl. sp. (Leth. | b. 910, High Thorns, Un- 
Suec. t. 17, fig. 12; Siluria, pl. 9, | derbarrow; b. 911, Leint- 
fig. 26). wardine. 
Ge6 Pterinea hians, p. 260. Pterinea retroflexa, var. hians. a. 950, Mortimer’s Cross. 
Ges6 PLU, fig: 6: Pterinea, sp. like Sowerby. a. 948, Dudley, 
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