EXPLANATION OF THE PLATES. 109 
a, b. Reduced to two-thirds of natural size, from pl.i., fig. 6. a, 6. Front 
and back view of the same shell, showing radiating bands of colour. 
Longnor, Derbyshire. 
CarponrreRous Limestonf.—This shell is abundant in many English and 
Irish localities, but is less frequent in Scotland. 
Fic. 10.—a, 6, c. TerepratuLa saccutus, Martin. 
Anomites, Martin, Pet. Derb., pl. xlvi., figs. 1, 2. 
Terebratula, Sow. Min. Conch., pl. 446. Carb. Brach, p. 14, pl. 1., figs. 
23, &e; 
Original. a,b,c. Front, back, and end view of the same shell. Carb. 
Limest., Dovedale. Mus. G.S. I. 
DeEvonIAN AND Carsonirerous.—Middle Devonian, Torquay group. S. 
Devon. Upper Devon., Baggy and Pilton groups, N. Devon. Carbo- 
niferous Limestone, many localities, especially in the Derbyshire district. 
It also occurs in West Lothian, Scotland; and at several localities in 
Ireland. 
Fie. 11.—a, 6. Ruyncnonetia pLevropon, Phillips, sp. 
Terebratula, Phil. Geol. Yorksh., vol. ii., p. 222, pl. xii., figs. 25, &c. 
Rhynchonella, Brit. Carb. Brach., p. 101, pl. xxii, figs. 1, &e. 
a, 6. Front and end view of the same specimen, from Brit. Carb. Foss., pl. xxiii., 
figs. 1. 1a. Carb. Limest. Bolland, Yorkshire. 
DEVONIAN AND CarRBonireRous.—Middle Devon. Torquay, Ilfracombe. 
Upper Devon., Petherwin, Cornwall, Baggy and Pilton, and Passage 
beds, Barnstaple. Lower Carboniferous to Upper Carb. Limestone. 
In England this fossil shell is abundant in the Carb. Limest. and shales, 
especially in Yorkshire and Derbyshire localities. In Scotland it is 
found near Carluke, in Lanarkshire; Campsie also in West Lothian. 
In Ireland it occurs in the Red Sandstone of Kildress, Co. Tyrone, and 
in the Carb. Limest. and shales at several other localities. Brit. Carb. 
Brach., p. 105. 
Fic. 12.—Ruyncnonetita puenus, Martin, sp. 
Anomites, Mart. Pet. Derb., pl. xxii., figs. 4, 5. 
Rhynchonella, Dev. Brit. Carb. Foss., p. 97, pl. xxii., figs. 1, &e. 
From Brit. Carb. Foss., pl. xxii., fig. 2. Carb. Limest. Bolland. 
DEVoNIAN AND CARBONIFEROUS.— Middle Devonian, Ilfracombe, Torquay ; 
Upper Devon., Petherwin, Pilton. Lower Carboniferous, and Carb. 
Limestone. Etheridge, Journ. Geol. Soc., vol. xxiii., p. 622. 
‘This species is common in the Carb. Limest. of Derbyshire, Yorkshire, &c., 
in England; also in the Isle of Man; Lanarkshire and Stirlingshire, 
Scotland ; and in various counties in Ireland. 
