FORAMINIFEEA. 



[ 333 ] 



FORAMINIFERA. 



d'Orb. ; Sju'roplecfa, Ehrenberg ; Cnncolina, 

 d'Orb.) ; Venwuilina, d'Orb. {Gaudryiita, 

 d'Orb., PI. 23. fig. 48 ; HetcrostomeUa, K^s. ; 

 ChniMilhlina. d'Orb. ; Trifa.rin, Rss.) ; Val- 

 vuli'iia, d'Orb., PI. '23. tig. 20 {aariihna, 

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



b. BuLiMiNiXA. — Bidiminct, d'Orb., PI. 

 23. fig. 46 ( Viri/idina, d'Orb. ; Bolivina, 

 d'Orb. ; L'iffinii(i,'l\ kJ .; liobcrti)ia,dVvh. ; 

 Pkurostoinella, Reuss). 



e. Cassidulinina. — Cassidulinn, d'Orb., 

 PI. 23. fig. 4.J ; Ehrenhergina, Reuss. 



Group V. Test calcareoiis, finely iDerforate. 

 Fam. 7. Cliilostomellidee. 

 ChilosfomeUn, Reuss; Allomorphina, 

 Reuss ; EUipsoidina, Seguenza. 



Fam. 8. Lagenidse. 



a. Lagenina. — La(/ena, Walker and 

 Jacob, PI. 23. figs. 22, 24-27 {Entosolenia, 

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

 Bamulma, Jones. Nodosarina : — Nodosaria, 

 Lam., PI. 23. fig. 28 {GlanduUna, d'Orb.; 

 Benfalina, d'Orb., PL 23. fig. 33; Liiiffu- 

 lina, d'Orb.) ; Orfhocerina, d'Orb., =Rhah- 

 do(/oniinn, Rss., PL 23. fig. 36 ; Frondicu- 

 laria, Defr., PL 23. fig. 39 {Amphimov- 

 2Jhina, Neugeb.) ; Vaginulina, d'Orb., PL 23. 

 fio-. 35 (Bimidim, d'Orb.); Marginnlina, 

 d^Orb., PL 23. tigs. 30-32; CristeUaria, 

 Lam., PL 23. figs. 34, 37 {Plamdaria, 

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



b. Polymorphinina. — Pohjmorphina, 

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

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

 {Sagriyia, d'Orb.). 



Group YI. Test calcareous, generally witli 

 coarse perforations; without canal- 

 system. 



Fam. 9. Globigerinidae. 



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

 bidina, d'Orb., PL 24. fig. 1); Pidknia, 

 Parker and Jones ; Spharoidma, d'Orb. 

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



Group VIL Test calcareous, coarsely per- 

 forate ; some with double chamber- 

 walls and interseptal canals. 



Fam. 10. Rotalidde. 



Spirillina, Ehrenb. (PL 24. fig. 5} ; Pa- 

 tellina, Williamson (PL 24. fig. 8) ; Discor- 

 bina, P. & J. (PL 24. fig. 7); PlanorbuUna, 

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



d'Orb., PL 24. fig. 9; yl?)/)»!«//»//,d'Orb.) ; Pu- 

 pe.rtia, Wallich ; Carpentaria, Gray; Polg- 

 trema, Risso; Tinopiorus, Carpenter (= Gyp- 

 sina, Carter) ; Cyndxdopora, von Hagenow 

 (PL 24. fig. 17) ; Tkalamopora, Rss. ; Pd- 

 vinidina, P. & J. ( PL 24. figs. 11 , 16) ; Rot alia, 

 Lamarck (PL 24. tigs. 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. Nummulitidae. 



a. Polystomellina. — Nonionina, d'Orb. 

 (PL 24. fig. 18) ; Poh/stomella, Lam. (PL 23. 

 fig. 55, PL 24. figs. i9, 20). 



b. NuMMULiTiNA. — Archcsdiscus, Brady ; 

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

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

 Dawson ; Cydoclypem, Carpenter ; Hete- 

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

 24. figs. 23-26) ; Nummulites, Lam., PL 24. 

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



Unplaced groups : — 



Group IX. Testamojbiformia, Carter. 



Lobose forms. 



a. Test calcareous. — Ilolocladia and Cys- 

 teodictyina, Carter. 



b. Test chitinous. — Cerastestina, Carter. 



Group X. Syringosphaeridae, Duncan. Test 

 calcareous, with radiating groups of 

 tubules. 

 Syringosplireria and StoUczharia, Duncan, 



Group XL 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 ; Sp)hcerospongia, Salter. 



BiBL. D'Orbigny,Z>«c^. Sc. NatAS2Q,x\\.; 

 Mem. Soc. Geol. France, iv. ; Diet. d'Hist. 

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

 Ehrenb. Mikrog. 1854; lA. Abh. Ah. Berlin, 

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

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

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

 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; 



