EXPLANATION OF THE PLATES. #1 
Mippite Drvonran.—Abundant at Woolborough Quarry, near Newton 
Abbot ; Ogwell; Chircombe Bridge, &c.; at Barton, Lummaton, and 
Hope’s Nose, near Torquay; in the Plymouth limestone at Datington. 
near Totnes; and in several. other Devonshire localities. Brit. Dev. 
Brach., p. 59. 
Fic. 10.—a, 6. RHYNCHONELLA CUBOIDES, Sowerby, sp. 
Atrypa, Trans. Geol. Soc., 2nd ser., vol. v., pl. Ivi., fig. 24. 
A. crenuluta, A. impleta. Ibid., fig. 17, and pl. lvii., fig. 2. 
Rhynchonella, Brit. Dev. Brach., p: 65. 
From Brit. Dev. Brach., pl. xiii., fig. 16, 16. Lanes or Woolborough 
Quarry. 
MrippLe DevonrAn.—Abundant in the limestone of Woolborough Quarry, 
Newton Abbot ; near Ogwell; Bradley, North Down ; Barton, &e., near 
Torquay ; also common “in the Plymouth limestone. Brit. Dev. Brach., 
p- 66. 
Fig. 11.—a, b. PENTAMERUS BREVIROSTRIS, Phillips, sp. 
Stringocephalus, Pal. Foss., p. 80. Pentamerus, Brit. Pal. Foss., p. 384. 
From Brit. Dev. Brach., pl. xv., figs. 3, 5. Woolborongh Quarry. 
Mippie DrEvoniAN. —Oceurs plentifully in the limestone of W oolborough 
Quarry, near Newton Abbot; near Chircombe Bridge, West Ogwell, 
and Bradley, North Devon; Barton, Lummaton, and Hope’s Nose, near 
Torquay; at Dortington, near Totnes ; and Plymouth. Brit. Dev. 
Brach., p. 73. 
Fic. 12.—a, b, c. ORTHIS INTERLINEATA, Sowerby. 
Trans. Geol. Soc., 2nd ser., vol. v., pl. liii., fig. 11; pl. liv., fig. 14. 
From Brit. Dev. Brach., pl. xvil., figs. 19, 23. 12a. Petherwin, Cornwall ; 
b. enlarged strive from do. ; ¢. interior of ventral valve, Pether win. 
Mipprx and Upper Drvontan.—It occurs abundantly in the Upper De- 
vonian shales of Landlake, near South Petherwin, and Launceston, in 
Cornwall; and in the brown grits of North Devon, near Barnstaple, 
Croyde, Marwood, &e.; and, ‘according to Mr. Valpy, in the Middle 
Devonian at Hagginton Hill, near Ilfracombe. Brit. Dev. Brach., p. 92. 
Fig. 13.—Propuctus PRELONGUS, Sowerby, sp. 
Leptena, Trans. Geol. Soc., 2nd ser., vol. v., pl. liii., fig. 29. 
Brit. Pal. Foss., p. 390. 
From Brit. Dev. Brach., pl. xix., fig. 24. Cast, from the Upper Devonian of 
Croyde Bay, North Devon. 
Uprer Devonran.—Croyde Bay, also in brown grits, Orchard Quarry, 
Pilton ; Braunton ; and in the Lower Marwood beds, near Marwood, 
North Devon. 
Productus, 
