BRACHIOPODA. ANOMIAD. 359 
Genus 2. TEREBRATULA. 
Terebratula, Bruguiére, Lamarck, Cuvier. 
Shell inequivalve, regular, rather trigonal, with a short pe- 
duncle affixed to marine bodies ; this peduncle is ciliated at its 
base ; the umbo of the right valve is produced and sometimes 
is incurvated, its apex perforated or notched; the hinge has 
two teeth, bidentated at their bases internally; those in the 
left valve are very much elongated, thin, curved internally, and 
sometimes furcated or forked, which serves as a fulcrum to sup- 
port the animal. 
1, TEREBRATULA GLABRA. Tab. XIV. figs. 3, 4, 5. 
The shells smooth and polished ; the epidermis on the mid- 
dle of both valves pale orange; their margins painted with 
orange and purplish, mingled together. Length nine inches 
and a quarter; height eleven inches and three-quarters. 
Terebratula Cranium, Mont. Trans. Linn, Soc. xi. 182. 
Anomia Cranium, Turt. Conch. Dict. 
This species inhabits the deep sea on the coasts of Devon, 
where it is extremely rare, but is not uncommonly found in 
the Shetland seas. 
The interior surface of both valves iridescent, painted with 
orange and purplish. 
2. TEREBRATULA STRIATA. Tab. XIV. figs. 1, 2. 
The shells sculptured with divaricating striz ; the epidermis 
in one valve iridescent, with the margins of the shell pale fus- 
cous, in the other valve iridescent, variegated with brown, tinged 
with orange, purple and yellow. Length nine lines and a 
quarter; height half a line. 
Inhabits the seas of Shetland, the Orkneys, and the western 
coasts of Devonshire, and is extremely rare. 
The interior surface of the valves whitish. 
