I860.] JONES AND PARKER FORAMINIFERA. 303 



31. Marginulina Litmus, D'Orb. Ann. Sc. Nat. vii. p. 259, No. 11 ; 

 Soldani, Testaccog. i. pt. 2, pi. 106. fig. aa, bb. 



43. Cristellaria aculeata, D'Orb. Ann. Sc. Nat. vii. p. 292, No. 14 ; 

 Soldani, Testaceog. i. pt. 1, pi. 57. fig. tt ; 0. echinata, D'Orb. 

 For. Fos. Vien. pi. 4. f. 21, 22. 



51-60. The genus Bulimina comprehends all the forms here indi- 

 cated. Virgulina is a delicate, compressed, biserial Bulimina, the 

 chambers not increasing with exact regularity. Bolivina is a similar 

 form, but more regularly plaited in its growth, being a Tcxtularian 

 isomorph. All these lie within the limits of an essential species. 



53. Bulimina aculeata D'Orb. Ann. 8c. Nat. vii. p. 269, No. 7 ; Sol- 

 dani, Testaceog. i. pt. 2, pi. 127. fig. I, pi. 130. f. W. 



64. Uvifjerina nodosa, D'Orb. Ann. Sc. Nat. vii. p. 269, No. 3 ; Sol- 

 dani, Testaceog. i. pt. 2, pi. 126. fig. xx, yy, zz, A, B. 



65-82. Textularia^. Varieties of one manifold species, belonging 

 to one generic type. The shell of Gaudryiaa commences with three 

 cells in a coil, before it takes on its biserial Tcxtularian character. 

 Such as take on a uniseiial growth have been termed Olavulina, and 

 confounded with similar varieties of Valvulina. The arrested tri- 

 serial growth is Verneuilina. Bigmerina is a Textularia becoming 

 uniserial. Grammostomum is a compressed form of Textularia, with 

 a terminal slit-like aperture. This kind of aperture passes gradually, 

 on the one hand, into the common arched passage of Textularia, and 

 on the other into the round terminal aperture of Bic/enerina. Gram- 

 mostoiiiuiii also may be dimoi-phous, — passing from the complex to 

 the simple arrangement of cells. 



82. Verneuilina communis, D'Orb. This is the Clavidina communis, 

 D'Orb. For. Foss. Vien. p. 196, pi. 12. f. 1, 2. For some re- 

 marks on the several forms referred to Clavidina by authors, 

 see Annals Nat. Hist. 3 ser. vol. v. p. 469. 



83,84. The characters and relationship of Orhitolina and I'utellina, 

 with their numerous varieties, are explained in the Annals Nat. 

 Hist. 3 ser. voL vi. pp. 29-38. 



s5. Polytrema miniacea, Esper, sp.* MUlepora miniacea, Esper, 

 Zooph. i. pi. 17: Gmel. Syst. Nat. -'>7^\ ; M. rubra, Lamarck, 

 Ili-t. An. s. Vert. ii. ]». -i)-, N<>. s : Polytrema coraUina, 

 ltisso, Europe Bferidion. \. p. 340, X". '.i| ; Polytrema miniacea, 

 Blainville, Aotinolog. p. HO, pi. 69. f.4. This i-^ a fixed, 

 reddish, often branching Uhizopod. related to ()rl>it<dii>n. 



36. SpiriUina vivipara, Ehrenb. Bee Annals Nat. Eist. 2 ser. six. 

 p. 284. This has been often confounded with other Fbromtiw* 

 fera, similarly shaped, bul with sandy and opake shells, and of 

 distinct relationship. < s 'y. vivipara is related to Rotalia through 

 the simple vermiculate varieties of /«'. repanda, especially R, 

 Vi rmieulata. 



* We line to thank Dr.J. I Graj for pomting oul the lynonymj of 1 1 » i -* 

 specie* 



\(ii,. xvi.- -PARI i. z 



