FROM THE LOWER CHALK. 319 



Chalk and Upper Greensand may be bracketed together, and not separated by a hard- 

 and-fast line as at present. 



HOLASTER SUBGLOBOSUS, Lcs/ce, Sp. PI. LXXIII, figs. CI h. 



Spatangus subglobosus, LesTce. Add. ad Kleinii Disp. Echin., p. 240, pi. liv, 



figs. 2,3, 1778. 

 Echinus subglobosus, Linne. Gmelin's Systema Natura, p. 3198, 1789. 



— — Lamarck. Encyl. Method., Zoophytes., pi. 157, figs. 7, 8, 



1791. 

 Spatangus subglobosus, Lamarck. Animaux sans Vertebres, t. iii, p. 33, 1816. 



— — Beslong champs. Encycl. Method., Zoophytes, p. G89, 



1S24. 



— — Goldfuss. Petref. Germanise p. 148, pi. xvii, fig. 4, 



1826. 



— — Blainvillc. Zoophytes, Diet. Sc. Nat., t. lx, p. 185, 1830. 

 — ■ iiemispiIjEkicus, Phillips. Geol. of Yorkshire, p. 91, pi. i, fig. 16, 1835. 



Holaster subglobosus, Agassiz. Prodrome, Mem. Soc. Nat. de Neuchatel, t. i, 



p. 183, 1836. 

 Spatangus subglobosus, Desmoulins. Etudes sur les Echinides, p. 398, 1837. 

 Holaster subglobosus, Agassiz. Descr. des Echin. foss. de la Suisse i, p. 13, 



pi. ii, figs. 7—9, 1839. 



— altus, Agassiz. Ibid., pi. iii, figs. 9 — 10, 1839. 



— subglobosus, Homer. Petref. der norddeutschen Kreidegebirges, p. 34, 



1840. 

 Holaster subrotundus, Sismonda. Echin. Foss. del Cont. di Nizza, p. 5, 1843. 



— subglobosus, Morris. Catal. of British Fossils, p. 54, 1843. 



— — Agassiz Sf Desor. Catal. raisonne des Echinides, p. 133, 



1847. 



— — A. Gras. Oursins Fossiles de l'lsere, p. 63, 1848. 



— — Sorignet. Oursins de 1'Eure, p. 67, 1850. 



— — Forbes, in Dixon's Geol. of Sussex, p. 341, pi. xxiv, fig. 2, 



pi. xxix, fig. 1, 1850. 



— — Bronn. Lethsea Geognost., p. 204, pi. xxxi, fig. 2 a, a, 



1852. 



— — Forbes. Mem. Geol. Surv. Decade iv, pi. vii, 1852. 



— — Quenstedt. Handbuch der Petref., p. 591, pi. 1, fig. 14, 



1852. 



— — d'Orbigny. Paleont. Franc., Terr. Cret., t. vi, p. 9", pi. 



816, 1853. 



— — Leymerie el Cotteaxt. Catal. des Ecbin. Foss. des Pyre- 



nees ; Bull. Soc. Geol. de France, 2me serie, t. xiii, 

 p. 350. 1856. 



— — Slrombeck. Glieder. des Planers, in N.-W. Dcutschland ; 



Zeitschr. der Deutschen geol. Gesellsch., vol. ix, p. 415, 

 1857. 



