BHACIIIOI'ODA. 47 



unduliitctl, niul the front is mther driirfsscd in the middle." 

 Lon. 7. hit. 7. Jdt. 4 lines. 



Terchnitnla jnvciiis, Soirerhij, Geol. Trans. 2nd scr. v. pi. fjfi. f. 8. 



riiil. ISJI, I'lil. Foss. pi. Ho. f. I(i5. 



D'Orb. Prod. i. p. KM). 

 Fossil. Deroiiinn. Britain. 



110. TkKKIIK.VTULA VIRGO. 



Shell o\ lito-lanceolatc, uniformly convc.v ; beak ])romincnt ; 

 front niar<rin contiaeted, nearly straight ; surface beautifully re- 

 tieulated, and marked by a few faint, longitudinal striae. Lon. 8, 

 lat. 5.i lines. 



Terebratula virgo, Phil. Pal. Foss. p. 91. pi. 35. f. 167. 

 Fossil. Devonian. England. 



111. Terebratula caiqua. 



Shell much elongated, elliptical ; valves equally ventricose, 

 smooth, or with a few stria; of growth ; beak inflated, ranch re- 

 curved, and touching the other valve ; foramen round, mode- 

 rate ; deltidiura concealed ; front straight. Lon. 2^, lat. l-^L^ 

 alt. IfV unc. 

 Terebratula eaiqua, Vern. ^- Arch. 1842, Trans. Geol. Soc. 2nd ser. 



vi. pi. .'^o. f. 1. 



D'Orb. Prod. i. p. 100. 

 Terebratula amygdalina, Goldf. Bonn. Mus. 

 Fossil. Devonian. Paffrath, Prussia. 



112. Terebratula Bordini. 



Shell subpentagonal, smooth, very finely ptinctate ; edges 

 sharp ; margins even ; ventral valve rather more convex than the 

 dorsal ; beak reciu-ved, its summit perforated by a small round 

 foramen ; deltidium distinct. Lon. 10, lat. 9, alt. 4 lines. 



Terebratula Bordini, Vern. 1850, Bull. Soc. Geol. Fr. t. 7- p. 36. 



pl.l.f. 8. 

 Fossil. Devonian. Spain. 



113. Terebratula Schulzii. 



Shell much elongated, smooth ; borders shaqj ; front mai-gins 

 quite even ; ventral valve most convex ; beak acute, perforated 

 by a small foramen, below which is an elongated deltidium. 

 Lon. 9, lat. 5, alt. 3 lines. 

 Terebratula Schulzii, Vern. 1850, Bull. Soc. Geol. Fr. vii. p. 37. 



pl.l.f. 7. 

 Fossil. Devonian. Spain. 



