ANIMALS. 147 
The two species next to be described are the only certain Permian forms with 
which the paleontologist is acquainted. 
EPITHYRIS ELONGATA, Schlotheim. 
(@) 
(’) 
@) 
() 
@) 
° 
Plate VI, figs. 30-45. 
TEREBRATULITES ELONGATUS, Schl. Akad. Miinch., vol. vi, p. 27, pl. vii, figs. 7 a, 6, c, 
8, 9, 1816. 
COMPLANATUS ,, Op. cit., pl. vii, figs. 13, 14a, 0, e. 
LATUS 
ELONGATUS 
», Op. cit., pl. vii, fig. 12. 
» Petrefactenkunde, p. 277, 1820. 
» Boué, Edin. Phil. Journal, vol. xii, p. 144, 1825. 
cCOMMUNIS, Var. 6, Latus, Schl. Loc. cit. 
(?) Terepratuta, N.S., Phillips, Phil. Mag., N.S., vol. iv, p. 401, 1828. 
Ee) 
Frat TEREBRATULA, J. de C. Sow. Trans. Geol. Soc. Lond., 2d series, vol. in, 
p. 119, 1829. 
TEREBRATULA ELONGATA, Schl. Brongn., Tab. de Terr., p. 425, 1829. 
De la Beche, Geol. Man., p. 354, 1831; Germ. Transl., 
p- 459, 1832; 3d Eng. ed., p. 573, 1833. 
COMPLANATA, Schl. Op. cit. 
INTERMEDIA 
ELONGATA 
COMPLANATA 
INTERMEDIA 
ELONGATA 
a9 
39 
Op. cit. 
Phillips, Encyc. Met., vol. iv, p. 617, 1834. 
Op. cit. 
Op. cit. 
Von Buch, Ueber Terebrateln, p. 100, 1834. 
Quenstedt, Wiegmann’s Archiv, 1835. 
Le Cocq, Transl. Von Buch, Mém. Soc. Géol. de 
France, vol. ii, p. 211, pl. xix, fig. 10, 1838. 
QUALENII, Fischer. Bull. des Nat. de Moscou, p. 466, 1842. 
PLICA 
99 
39 
ELONGATA, Sché. 
Kutorga, Verh. der Min. gesellsch. St. Petersburg, 
p. 26, pl. vi, fig. 2, 1842. 
Kutorga, Ib., pl. v, fig. 11. 
Morris, Catalogue, p. 133, 1843. 
Geinitz, Geea von Sachsen, p. 97, 1843. 
De Verneuil, Bull. Soc, Geol. de France, 2™° serie, vol. i, 
p. 26, 1844. 
Geol. Russ., vol. i, p. 222; vol. ii, pp. 66-9, pl. ix, 
fig. 9 a, 6, ce, d, 1845. 
Keyserling, Petschora-land, p. 238, 1846. 
CASSIDEA, Geinitz. Grundriss, p. 507, 1846. 
ELONGATA, Schl. 
Ibid., p. 508. 
Tennant, Strat. List, p. 88, 1847. 
King, Catalogue, p. 7, 1848. 
Howse, Trans. T. N. F. C., vol. i, p. 251, 1848. 
Geinitz, Versteiner., p. 11, pl. iv, fig. 27 a, 6, c,d, 1848. 
Diagnosis—Smooth to the eye; but microscopically granulated, through being 
crowded with moderate-sized punctures: in general three quarters of an inch in 
