82 
BRACHIOPODA, 
92. Waldheimia? prominula. 
Shell oblong, rather truncated in front, ornamented with 
twenty-four sharp radiating ribs ; valves convex, shghtly flattened 
along the centre ; margins dentate ; beak prominent, slightly 
curved, truncated by a round foramen ; deltidium elongated, bor- 
dered by a smooth space. Lon. 10, lat. 8, alt. 5 lines. 
Terebratula prominula, Rcemer, Rhein. Ueberg. p. 66. pi. 5. f. 3. 
D’Orb. Prod. i. p. 100. 
Fossil. Devonian. Prussia. 
93. Waldheimia? ulothrix. 
Shell somewhat transverse, rounded, with 9-1 1 sharp radiating 
plaits ; surface ornamented w'ith wavy, concentric hnes, espe- 
cially near the margin ; beak small, recujved ; aperture rounded ; 
area small, triangular, distinct. Lon. 6, lat. 7i, alt. 4 lines. 
Terebratula crispata, Koninck, Descr. p. 292 (not Sow.). 
Terebratula ulothrix, Kon. 1844, id. pi. 19. f. 5, note. 
Terebratula subcrispata, D’Orb. 184/, Prod. i. p. 151. 
Fossil. Carboniferous. Belgium. 
94. Waldheimia? trilatera. 
Shell small, triangidar, elongated, laterally compressed, orna- 
mented W'ith 18-22 sharp radiating plaits, each valve w'ith a 
medio-longitudinal depression ; beak short, acute, straight ; fora- 
men minute; area inconspicuous. Lon. 5i, lat. 4^, alt. 24 lines. 
Terebratula trilatera, Koninck, 1844, Descr. p. 292. pi. 19. f. 7- 
D’Orb. Prod. i. p. 151. 
Fossil. Carboniferous. Belgium. 
e. Beak elongated ; valves ornamented with rounded ribs. Lyra. 
Lyra (Meadi), Cumberland, 1816, in Sow. Min. Con. 
Trigonosemus, Kcenig, Icon. Sect, (part.) 1825. 
? Rhynchora (costata), Dalman, 1828, Vetens. Acad. p. 136. 
Hisinger, Lethcea Suecica. 
Terebratulse rostratae, Morris, 1846, Journ. Geol. Soc. p. 385. 
Rhynchoridae, King, Permian Fossils, 81, 141. 
Terebru'ostra (lyra), D’Orbigny, 1848, Ann. Sc. Nat. Terr. Cret. 
iv. t. 519. 
Dav. 1852, Mon. Cret. p. 31. 
