nRACHIOPODA. P.'J 



I{li\ iicliorn Diivitlsoniiinn, Koninck MS. 

 '! Kliyncliorii iiiiniina, id. 

 Fossil. Chalk, ("iply, Belgium. 



21. TKRKnUATKLL.V I'ECTITA. 



Shell sulx'ircular, or somi'wlint ])cntagon!il, plicato-striatcd ; 

 stria; .'JO-dO, iiicrciisiug by intcrcaliitioii ; dorsul valve slightly 

 convex, longitudinally dei)ressed in the eentre in front j hinge- 

 line nearly as wide as the shell, almost straight; area distinet. 

 Hat, triangular ; I'oramcu moderate ; deltidium double. Lon. 10, 

 hit. I>, alt. () lines. 



Terebratula peetita, Soxc. Min. Con. 1818, ii. p. 87. t. 1.38. f. 1. 



Lam. Ah. satis Vert. vi. j). 255. no. 46 ; ed. 2. vii. p. 343. 



Brongn. Env. Paris, pi. 9. f. 3. 



Defr. Diet. Sc. Nat. hii. p. 159. 



Biic/i, Mem. Soc. Geol. Fr. iii. p. Ifi8. pi. \6. f. 12. 



Rwrner, Kreid. p. 40. 

 Terebratula jjcctinata, Smith, Strata identified, 1816, f. 4. 

 Terebratella peetita, D'Orh. Ter. Cr^t. iv. p. 120. t. 51/. f. 16-20, 



l)ai\ M!)n. Cret. p. 26. jd. 3. f. 29-33. 

 Fossil. L^ Greensand. England ; France. 



22. Terebratella Verneuilliana. B.M. 



Shell circular, oraamented with about 15 unequal, sharp, 

 radiating ])laits ; valves nearU' equally convex ; beak scarcely 

 curved ; area short, wide and tlat ; foramen large, circular ; del- 

 tidium complete, double. Lon. 6, lat. 61, alt. 3 lines. 



Terebratella ^'erneuilliana, Davidson, April 1852, Ann. Nat. Hist. 



pi. 14. f. 4. 

 Fossil. Ch-eensand. Santander. 



23. Terebratella canaliculata. B.M. 



Shell ovoid, ornamented with 12-14 radiating and bifurcating 

 plaits ; dorsal valve semicircular, convex ; ventral valve produced 

 into a long straight beak, truncated by a large foramen ; area 

 large and Hat ; deltidium elongated ; loop reflected and doubly 

 attached. Lon. 5, lat. 4, alt. 21 lines. 



Terebratula canaliculata, Roemer, 1840, Kreid. p. 41. no. 30. pi. 7- 

 f. 1. 



D'Archiac, Mem. Soc. Geol. Fr. 2nd scr. ii. p. 331. pi. 21. 

 f. 15. 

 Terebratella canahcnlata, D'Orb. Prod. ii. p. 1/3. 

 Terebrirostra canaliculata, D'Orb. Prod. ii. p. 1/3. 

 Fossil. U. Greensand. Westphalia; Belgium. 



