170 



SALENIA 



a. — Species from the Upper Greensand. 

 Salenia petalifera, Desmarest, sp., 1825. PI. XXXIII; PI. XLII, fig. 3. 



Echinite, from Wiltshire, 

 Echinus, 



— areolatus, 



— petaliferus, 



Salenia petalifera, 



PERSONATA, 



PETALIFERA, 

 PERSONATA, 



PETALIFERA, 



PERSONATA, 



- PETALIFERA, 



PERSONATA, 



- PETALIFERA, 



Parkinson. Organic Remains, vol. iii, pi. i, fig. 12, 1811. 

 W. Smith. Strata identified by Organized Fossils, p. 12, 



Greensand, fig. ii, 181 G. 

 Konig. Icones foss. sectiles, fig. 100, 1820. 

 Desmarest. Oursin ; Diet. Sc. Nat., t. xxxvii, p. 101, 1825. 

 Be Blainville. Zoophytes, Ibid., t. lx, p. 210, 1830. 

 Desmoulins. Etudes sur les FJchinides, p. 302, 1837. 

 Agassis. Monogr. des Salenies, p. 9, pi. i, figs. 1 7 — 24, 1838. 

 Agassi;. Catal. Ectyp. loss., p. 11, 1840. 

 Dujardin. In Lamarck's Animaux sans Vert., 2e 6d., t. iii, 



p. 394, 1840. 

 Morris. Catalogue of British Fossils, p. 58, 1843. 

 Agassis et Desor. Catal. rais. des Echinides, Ann. Sc. Nat., 



3e se'rie, t. vi, p. 341, 1846. 

 Forbes. Mem. of Geol. Surv., Decade I, pi. v, 1849. 

 Bronn. Index Palseontologicus, p. 1107, 1849. 

 dtOrbigny. Prodrome de Pal. strat., t. ii, p. 179, 1850. 

 uVOrbigny. Cours element, de Pal., t. ii, p. 126, fig. 277, 



1851. 

 Bronn. Lethsea Geog. Kreide-Geb., pi. xxix, fig. 15, 1852. 

 John Miiller. Ueber den Bau der Echinodermen, p. 7, pi. i, 



fig. 15, 1854. 

 Forbes. In Morris's Catal. of Brit. Foss., p. 89, 1854. 

 Desor. Synopsis des FJchinides foss., p. 149, pi. xx, 



figs. 1—3, 1856. 

 Pictet. Traite de Paleontologie, t. iv, p. 247, pi. xcvii, 



fig. 1, 1857. 

 Cotteau. Paleontologie Francaise, Terrain cretace, torn, vii, 



p. 144, pi. 1034, 1864. 



Diagnosis. — Test circular, depressed, upper surface convex, sides inflated, base 

 narrow, concave; ambulacra wide, prominent, flexed, two complete rows of large marginal, 

 and two incomplete rows of small central granules. Inter-ambulacra three times the 

 width of ambulacra, two rows of tubercles, six in each, large above the ambitus, small 

 below ; miliary zone wide, sparsely granulated ; apical disc smooth, large, margin 

 undulated, sutures marked with punctuations ; vent circular, periprocte thin and 

 prominent. 



Dimensions. — Altitude, four tenths of an inch ; latitude, seven tenths of an inch. 



