70 EXPLANATION OF THE PLATES. 
PLATE: XX: 
FOSSILS OF THE LUDLOW ROCKS. 
ZOOPHYTA.—ANTHOZOA. 
Fig. 1.—Favosires Fisrosus, G'oldfuss, sp. 
Calamopora, Petr. Germaniz, p. 82, pl. xxviil., fig. 3, 4. Alveolites, Sil. 
Syst., p- 681, pl. xv., fig. L Stenopora, Brit. Pal. Foss., p. 24. Havo- 
sites, Brit. Foss. Corals, p. 261, pl. Ixi., fig. 5. Sil., 4th edition, p. 510. 
From Sil. Syst., pl. v., fig. 27, and the same figure in Sil., 4th edition, 
pl. KRIy. , fig. if in which the coral is seen incrusting the small univalve 
shells Cy ‘clonema corallii. Upper Ludlow, Trewerne Hills, Radnorshire. 
LLANDEILO TO LupLow.—Branching and hemispherical varieties of this 
widely-distributed coral are figured with the fossils of the Caradoc 
Roeks.. Plate x., fig: 1. a-d., under the name of Stenopora fibrosa ; 
the variety now figured ‘is found frequently incrusting particular species 
of shells. Cy clonema corallii and Murchisonia corallii of the Ludlow 
Rocks, as their names imply, being its favourite habitats.” Sil., 4th 
edition, p. 132. Locality: near Ludlow. 
ECHINODERMATA.—ASTEROIDEA. 
Fig. 2.—a, 6. PaLastERINA PRIMZVA, Forbes, sp. 
Uraster, Mem. Geol. Surv., vol. ii., pt. ii. p. 463 ; and Decade 1, pl.i. Pala- 
sterina, Ann. and Mag. Nat. Hist., vol. xx. oy, 327. 
a. Upper surface. 6. Under surface. From the figures 1 in the Decade cited, 
pl. i., fig. 2, a, 6; and from a specimen in the Mus. G. S. 1. Loe. : Lud- 
low Rocks, ‘Under barrow, near Kendal. 
Lupitow:—Sil., 4th edition, p. 513. “ The most common species of Starfish 
in the Ludlow Rocks of Kendal;” ibid., p. 225. Localities: Under- 
barrow, Westmoreland ; Leintwardine, Shropshire. 
Fig. 3.—PaLtzocoma Marston, Salter. 
Ann. and Mag. Nat. Hist., ser. ii., vol. xx., p. 328. 
Original. U nder surface, Lower Ludlow, Church Hill, Leintwardine. Mus. 
once 
Lupiow.—Sil., 4th edition, p. 515. 
Fie. 4.—Proraster Minront, Salter. 
Ann. and Mag. Nat. Hist., ser. i., vol. xx., p. 330. 
