EXPLANATION OF THE PLATES. 89 
PLATE XXX. 
FOSSILS OF THE OLD RED SANDSTONE OR DEVONIAN 
ROCKS. 
ECHINODERMATA.—CRINOIDEA. 
Fig. 1.—a, 6. HEXACRINUS INTERSCAPULARIS, Phillips, sp. 
Platycrinus, Phil. Pal. Foss., p. 28. Hexacrinus melo, Austin’s ‘* Crinoidea,” 
p. 49, pl. vi., fig. 1, 0. 
a. Reduced to two-thirds of natural size; side view. From Pal. Foss., 
pl. xiv., fig. 39,c. 6. Original. Pelvic plate (natural size). Middle 
Devonian, Plymouth. Mus. G. S. I. 
Mrppte DEvoNIAN.—Newton, Plymouth, South Devon. 
Fig. 2.—CYATHOCRINUS GEOMETRICUS, Goldfuss. 
Petref. Germ., p. 109, pl. lviii., fig. 5. Phil. Pal. Foss., p. 135. 
From Pal. Foss., pl. 1x., fig. 41.* 
Mipp.e Devonran.—Newton. In Prof. Morris’ “ Catal. of Brit. Foss.,” it 
is also recorded as occurring in the Carboniferous Limestone of Wexiord, 
Ireland ; as, however, detached plates of Actinocrinus polydactylus may 
be easily mistaken for it, this may possibly be a wrong identification. 
Fic. 3.—a, b, TAXOCRINUS MACRODACTYLUS, Phillips, sp. 
Cyathocrinus ? Pal. Foss., p. 29. 
a. From Pal. Foss., pl. xv., fig. 41, a. Young example. 
b. Ibid., fig. 41, c. Plates of the base (Pelvic). 
Urrrer Devontan.—Brushford, North Devon. © 
MOLLUSCA.—BRACHIOPODA. 
Fic. 4.—a, 6. SrrincocerHaLus Burtini, Defrance. 
Dict. des Sciences Nat., vol. li., p. 102. Brit. Dev. Brach., p. 11, pl. i., ii. 
a, b. From Pal. Foss., pl. xxxii., fig. 141, aande. Front and side view. 
MippLe Devontran.—Localities: Plymouth; Bradley, near Newton; 
Ogwell, South Devon ; Combe Martin ; and Hagginton, North Devon. 
