CTHBIPEDIA. 141 



PoUicipes striatus, Darwin, 1851. Upper Chalk, Norwich ; Faxoe, 



Deumark. 



PolUcipcs striatus, Darwin, 1851, Foss. Lepadidas, Mod. Pal. Soc. p. 70, t. iv. 

 fig. 5. 



PoUicipes ungnis, J. Sowerby, 1836. Gault, Folkestone, Durham, 



Eastware Bay, Maidstone. 



Pollicipe/t unguis, ,1. Sowerby, 1836, Geol. Trans. 2nd ser. vol. iv. t. xi. fig. 5* ; 



Darwin, ISol, Foss. Lepadidaj, Mon. Pal. Soc. p. 64, t. iv. fig. 1. 

 P. IcBvis, J. Sowerby, Geol. Trans. 2nd ser. vol. iv. t. xi. (fig. 5 only). 



PYRGOMA, Leach, 1817. 



Pyrgoma, Leacb, 1817, Journ. de Physique, t. Ixxxv. ; Darwin, 1854, Foss. 

 "Balanid.-e, Mon. Pal. Soc. p. 35 ; II. VVoodw. 18ri8,Geol. Mag. vol. v. p. 258. 

 Boscia, F^russac, 1822, Diet. Classiqvie d' Hist. Nat. 

 Saviynium, Leach, 1825, Zool. Journ. vol. ii. 

 Megatrcma, id. op. cit. 

 Adna, id. op. cit. 



Daracia, J. E. Gray, 1825, Ann. of Phil, (new series) vol. x. 

 Creusia, De Blanville, 181(i-30, Diet. Sci. Nat. pi. cxvi. 

 Nobia, G. B. Sowerby, Junr., 1839, Conchological Manual. 

 Distribution. Upper Chalk and Crag. Recent, British Seas, &c. 



Pyrgoma Anglicum, G. B. Sowerby, 1823. Crag, Upper Street, near 



Chislet and Ramsholt ; Recent, coast of England, &c. 



Pyrgoma Anglicinn, G. B. Sowerby, 1823 (no. 18, Sept.), Genera of Recent and 

 Foss. Shells, tig. 7; Brown, 1844, Ulus. of Conchology (^ud edit.) t. liii. 

 figs. 27-29 ; Darwin, 1854, Mon. Pal. Soc. p. 36, t. ii. figs. 7[«-7 c. 



Megntrema (Adna) Anglica, J. E. Gray, 1825, Ann. of Phil, (new ser.) vol . x. 



Pyri/oma sulcatum, Philippi, 1836, Euumeratio Molluscoruni Sicilife, t. xii. 

 tig. 24. 



Pyrgoma cretacea, H. AVoodw. 1868. Upper Chalk, Norwich. 



Pyrgoma cretacea, II. Woodw. 1868, Geol. Mag. vol. v. p. 258, pi. xiv. figs. 1,2. 



SCALPELLUM, Leach, 1817. 



Scalpelhim, Leach, 1817, Journ. de Physique, t. Ixxxv.; Darwin, 1851, 

 Mon. Pal. Soc. p. 13; II. Woodw. & Salter, 1865, Cat. & Chart Foss. 

 Crust, p. 27. 



Lepas, Liiui., 1769, Systema Naturre. 



PoUicipes, Lamarck, Animaux sans Vertebras. 



Polylepas, De Blainville, 1824, Diet, des Sci. Nat. 



Smilium, Leach, 1825, Zoolog. Jonru. vol. ii. 



Calmitica, J. E. Gray, 1825, Ann. Phil. vol. x. 2nd ser. 



ThalicUa, J. E. Gray, 1848, Proc. Zool. Soc. Lond. 



Amitifa, Quoy et Gaimard, 1826-34, A'oyage de 1' Astrolabe. 



Xiphidium, Dixon, 1850, Geology of Sussex. 



Distribution. Cretaceous and Eocene. Recent, marine. 



