BRACHIOPODA. !»i» 



soparnte ; dorsftl vnlve depressed in tlie centre ; loop clonfrated. 

 (louhlv uttiiclicd ; cfntrul se])tinn more or less rli'Viitcd, ^onlc- 

 tiTiu's toucliiiijj; the opposite valve. Lon. 7, lat. 7. alt. 1 lines. 



Terebratida erenulata, G. Sowerby, Thes. Conch, vii. ]). .'i.'jS. t. 71- 



f. !'(;. !»7. !»S. 

 Tercbratella erenulata, Dav. Ann. Nal. Hist. 1S")2, p. 'MS. 

 I lab. Santa Cruz. 



2. Magas Evansii. 



Shell subovate, with a few unequal, l)ifureating; ribs, j)ale red ; 

 beak tapi-rintr, sliirlitly recurved, witb well-ditiiied lateral rid<res; 

 fonuueu ineomplete ; deltidia small; area tlatteued ; dorsal valve 

 rather tlat ; looj) elongated, doubly attached ; septum produced, 

 nearly touching the o])posite valve. Lon. 4, lat. ^i.^, alt. 1 J lines 

 (%s."ll, 12). 



Terebratella Evansii, Davidson, 1852, Ann. Nat. Hist. p. 3(58 ; 



Proc. Zool. Soc. J). . pi. . f. 7-9. 

 Hab. New Zeahiud. (Mus. Cuming.) 



3. Magas Cumingii. 



Shell oval, thick, smooth, Avhite, slightly tinged with red ; beak 

 produced, tapering, slightly curved, grooved to the summit ; area 

 triangular, concave ; deltidium obsolete ; dorsal valve with a 

 ])rominent muscular fulcrum ; loop doubly attached ; se])tum 

 elevated, reaching the ventral valve. Lon. 5, lat. 4, alt. 22 lines. 



Terebratella Cumingii, Davidson, 1852, Aiin. Nat. Hist. p. 368; 



Proc. Znol. Soc. p. . pi. . f. 10-16. 

 Hab. New Zealand. (Mus. Cuming.) ^ 



4. Magas pumila. B.M. 



Shell oval, smooth, ornamented with radiating coloured bands; 

 dorsal valve nearly Hat, or slightly concave ; ventral valve deep, 

 with a well-defined hinge-ai-ea ; beak recurved ; foramen minute ; 

 deltidium rudimentary. Lon. 4, lat. 3, alt. lines (tigs. 9, 10). 



Magas pumila. Sowerby, 1818, Mra. Con. ii. p. 40. t. 119. f. 1-5. 

 Park. Or(j. Rem. j). 227. pi- 7. f- 14. 

 Brongn. Env. Paris, pi. 4. f. .9. 

 Defr. Diet. Sc. Nat. xxviii. p. 13. f. 1. 

 Bromu Leth. Geor/. p. 662. pi. 30. f. 1. 

 D'Orb. in Murch'. Russia, ii. j). 495. pi. 43. f. 27-30; Ter. 



Cre't. iv. p. 54. pi. 501. 

 Bouchard ^- Dav. Bull. Soc. Geol. France, v. 2nd ser. p. \3U. 



pi. 2. f. 1-11. 



F2 



