18 
BRACHIOPODA. 
Kuster, Conch, vii. 21. t. 2. f. 11-13 ; t. 1. f. 13. 14. 
Davidson, Ann. Nat. Hist. 1852, p. 364. 
Terebratula (a) sub-vitrea {Leach), Blainv. Diet. Sci. Nat. liii. 
135. 1828. 
Terebratula euthyra, Phil. 1844, Moll. Sicil. ii. p. 68. 1. 18. f. 8 ? 
Gryphus vitreus, Megerle, Berl. Mag. 181 1, 64. 
Habitat. Mediterranean, in 90 to 250 fathoms, on nullipore 
mud (Forbes). 
Fossil. Pliocene. Sicily. 
2. Terebratula sphenoidea. 
Shell triangularly-ovate, truncated in front, smooth ; margins 
even, obscurely bisinuated in front ; dorsal valve convex near the 
umbo, depressed in front ; beak prominent, scarcely ciured, 
foramen moderate, round ; deltidium conspicuous ; loop short, 
simple. Lon. 12, lat. 10, alt. 6 lines. 
Terebratula sphenoidea, Phil. 1844, Moll. Sicil. ii. p. 67. 1. 18. f. 6. 
Bronn, Index, p. 1251. 
Fossil. Pliocene. Sicily. 
3. Terebratula sbptata. 
Shell oval, subquadi-ate, venti-icose, smooth ; valves gibbous, 
rather truncated in front, sides nearly parallel •, dorsal valve with 
the front margin rather bent dowmvrards, beak prominent, thick ; 
foramen moderate, round; deltidium sohd. Lon. 10, lat. 9, alt. 
7 lines. 
Terebratula septata, Phil. 1844, Moll. Sicil. ii. p. 68. t. 18. f. 7. 
Bronn, Index, p. 1250. 
Fossil. Pliocene. Sicily. 
4? Terebratula uva. 
Shell narrowly- oblong, gibbous, smooth, slightly translucent, 
pale horn-colour ; margins even ; beak produced, truncated ; 
foramen large, deltidium small, concave; loop short?. Lon. 13, 
lat. 7, alt. 6 Unes. 
Terebratula uva, Brod. 1833, Proc. Zool. Soc. 124. 
G. B. Sow. Thes. Conch, vii. 353. t. 70. f. 53-55. 
Dav. Ann. Nat. Hist. 1852, ix. p. 364. 
Hob. Gulf of Tehuantepec (Mus. Cuming). 
5. Terebratula grandis. B.M. 
Shell oval, ventricose, smooth, becoming very thick with age ; 
front margin obscurely biplicate; beak produced, slightly re- 
curved, lateral ridges indistinct; foramen large and round; del- 
