FORAMINIFERA. 



[ 333 ] 



FORAMINIFERA. 



d'Orb. ; Spiroplecta, Ehrenberg ; Caneolina, 

 d'Orb.) ; Verneuilina, d'Orb. (Gaudryina, 

 d'Orb., PI. 23. fig. 48 ; Heterostomella, Rss. ; 

 Chrysalidina, d'Orb. ; Tritaxia, Rss.) ; Val- 

 vulina, d'Orb., PL 23. fig. 20 (davulma, 

 d'Orb., PL 23. fig. 51). 



b. BULIMINIXA. BuKmma. d'Orb., PL 

 23. fig. 46 ( Virgulina, d'Orb. ; Bolivina, 

 d'Orb. ; ifarma,P. & J.j Eobertina, d'Orb. ; 

 Pleurostomella, Reuss). 



c. CASSIDULININA. Cassidulina, d'Orb., 

 PL 23. fig. 45 j Ehreribergina, Reuss. 



GROUP V. Test calcareous, finely perforate. 

 Fam. 7. Chilostomellidae. 



Chilostomella, Reuss; Allomorphina, 



Reuss j Ellipsoidina, Seguenza. 



Fam. 8. Lagenidae. 



. LAGEXINA. Lagena, Walker and 

 Jacob, PL 23. figs. 22, 24-27 (Entosolenia, 

 Ehr., PL 23. fig. 23 ; Fissurina, Reuss) ; 

 Ramulina, Jones. Nodosarina : Nodosaria, 

 Lam., PL 23. fig. 28 (Glandulina, d'Orb.; 

 Dentalina, d'Orb., PL 23. fig. 33; Lingu- 

 lina, d'Orb.) ; Orthocerma, d'Orb., = 



, . 



fio-. 35 (Rimulina, d'Orb.); Marginulina, 

 d'Orb., PL 23. figs. 30-32; Cristellaria, 



., . 



Lam., PL 23. figs. 34, 37 (Planularia, 

 Defr.) ; Flabellina, d'Orb., PL 23. fig. 38. 



b. POLYMORPHININA. Polymorpkina, 

 d'Orb., PL 23. figs. 40-43 (Dimorphina, 

 d'Orb.) ; Uvigerina, d'Orb., PL 23. fig. 44 

 (Saffrina, d'Orb.). 



GROUP VI. Test calcareous, generally with 

 coarse perforations; without canal- 

 system. 



Fam. 9. Globigerinidse. 



Globigerina, d'Orb., PL 24. figs. 2, 3 (Or- 

 bulina, d'Orb., PL 24. fig. 1); Pullenia, 

 Parker and Jones ; Spheeroidina, d'Orb. 

 (PL 24. fig. 4) ; Candeina, d'Orb. 



GROUP YII. Test calcareous, coarsely per- 

 forate ; some with double chamber- 

 walls and interseptal canals. 



Fam. 10. Rotalidde. 



Spirillina, Ehrenb. (PL 24. fig. 5) ; 

 tellina, Williamson (PL 24. fig. 8); Du 

 Una, P. & J. (PL 24. fig. 7); Planorbu 



Pa- 



, ^ 'Discor- 



.,_, . v D - , , Planorbulina, 



d'Orb., PL 24. figs. 6, 10, 12 (Tmncatulina, 



d'Orb., PL 24.fig. 9; AnomalinafiOrb.) ; Ru- 

 pertia, Wallich ; Carpenteria, Gray ; Poly- 

 trema, Risso ; Tinoporus, Carpenter ( = Gyp- 

 sina, Carter) ; Cymbalopora, von Hagenow 

 (PL 24. fig. 17) ; Thalamopora, Rss. ; Put- 

 vinulina, P. & J. (PL 24. figs. 11, 16) ; Rotalia, 

 Lamarck (PL 24. figs. 13, 14) ; Calcarina, 

 d'Orb. 



GROUP VI II. Test calcareous, very finely 

 tubulated ; all the higher forms with a 

 system of interseptal canals. 



Fam. 11. Nummulitidse. 



a. POLYSTOMELLINA. Nonioninttj d'Orb. 

 (PL 24. fig. 18) ; Polystomella, Lam. (PL 23. 

 fig. 55, PL 24. tigs. 19, 20). 



b. NUMMULITINA. Archtsdiscus, Brady ; 

 Amphistegina, d'Orb. (PL 24. fig. 28) ; Fu- 

 sulina, Fischer (PL 24. fig. 15); Eozoon, 

 Dawson ; Cycloclypetis, Carpenter ; Hete- 

 rostegina, d'Orb. ; Operculina, d'Orb. (PL 

 24. figs. 23-26); Ntimmulites ) ~La > m., PL 24. 

 figs. 21, 22 (Assilina, d'Orb.). 



Unplaced groups : 



GROUP IX. Testamcebiformia, Carter. 

 Lobose forms. 



a. Test calcareous. Holocladia and Cys- 

 teodictyina, Carter. 



b. Test chitinous. Cerastestina, Carter. 



GROUP X. Syringosphaeridae, Duncan. Test 

 calcareous, with radiating groups of 

 tubules. 

 Syringosphceria and Stoliczkaria, Duncan. 



GROUP XI. Receptaculitidae, Giimbel. Test 

 calcareous, consisting of an inner and 

 an outer floor of plates, connected by 

 the tubes of an anastomosing canal- 

 system. 

 Receptaculites, Defr. ; Ischadites, Konig ; 



Tetragonis, Eichwald ; Sphceronites, Hisin- 



ger ; Sphcerospongia, Salter. 



BIBL. D'Orbigny,D^. Sc. Nat.1826, vii.; 

 Mem. Soc. Geol. France, iv. ; Diet. d>HisL 

 Nat. 1845, v. ; Foram. foss. Vien. 1846 ; 

 Ehrenb. Mikrog. 1854 ; id. Abh. Ak. Berlin. 

 1838, 1839, 1841, 1847, &c. ; Weaver, Ann. 

 N. H. 1841, vii. 296, 374; Dujardin, Ann. 

 Sc. Nat. 1835, iv. & v. ; Clark, Ann. N. H. 

 1849, iii. 388, 1850, v. 161; Williamson, 

 Tr. Micr. Soc. ii., and Recent Foraminif. 

 (Ray Soc.) ; Carpenter, Tr. Geol. Soc. 1849 ; 

 Microscope ; Phil. Tr. 1856, 59, 60, 69; 



