BRACHIOPODA. 39 



central furrow ; beak rccimed, thick, rounded ; foramen mode- 

 rate. Lou. and lat. (>, alt. 4 lines. 



Teroljratula subcanulis, M'linsfer, in Cambridge Museum. 

 Fossil. Ojfard i'latj. Bavaria. 



81. Terebratiila coahctata. B.M. 



Shell somewliat pentagonal, ornamented with radiating sjiinu- 

 lose striii', decussated by numerous lines of growth ; dorsal valve 

 curved, with an angular median ridge and more or less distinct 

 lateral fiuTows ; front straight or indented ; ventral valve deep, 

 with a prominent beak ; foramen moderate, round ; deltidium 

 distmet; loop short, simple. Lou. 12, lat. 11, alt. 8 lines. 



Terebratida coarctata. Park. 1811, Org. Rem. iii. pi. 16. f. 5. 



Sow. 18l>;i Mill. Con. iv. p. j. t. 312. f. 1-4. 



Brnnii, Index, ii. p. 1232, 



D'Orb. Prod. i. ]). .'ilO'. 



Darid.son, Mon. Ool. p. 59. pi. 12. f. 12-15. 



Quenst. Handh. p. 4G5. t. 3/. f. 21. 

 Terebratula reticulata. Smith, 18in, Org. Foss. p. 83. pi. 30. f. 10, 



Sow. 1H23, Min. Con. t. 312. f. 5-6 (et decussata). 



Deslong. Soc. L. Nonn. 



Quenst. Handb. p. 464. t. 3/. f, 20. 

 Terebratula decussata, Val. in Lam. 1819, An. sans Vert. vi. 

 no. 51 ; Enc. Me'th. t. 245. f. 4. 



Dar. Ann. Nat. Hist. June 1850, pi. 14. f. 51. 

 Terebratula reticularis, Schloth. Petref. i. p. 269. 



Buch, Mem. Soc. Ge'ol. France, p. 185. pi. 17. f. 7. 

 Fossil. Bath Oolite {Bradford Clay). England ; France, 



82. ? Terebratula Richardiana. 



Like T, reticulata, but much naiTower, more elongated, and 

 more strongly reticulated, 



Terebratula Richai-diana, D'Orb. 1850, Prod. i. p. 377. 

 FossU, Oxford Clay. France. 



83. Terebratula Morierei. 



Shell pentagonal, deeply indented in front ; valves ornamented 

 with concentric, imbricated ridges, both deeply fiurowed in the 

 middle ; beak rather short, recurved, laterally keeled ; foramen 

 moderate, round ; deltidium distinct. Lon. 9, lat. 8, alt. 6 lines. 



Terebratula Morierei {Deslongchamps, MS.), Davidson, April 



1852, Ann. Xat. Hist. pi. 14. f. 3. 

 Fossil. Inferior Oolite. Normandy, 



