424 MR. F. CHAPMAN ON DEEP-SEA FOPvAMINIFERA 



ROTALIA ORBICULARIS, Orb. 



Occurrence.— ^i2i. 4, 2728 £ms. ; 13, 1050 £ms, ; 19, 1995 £ms. 



ROTALIA cf. DENTATA, Parher cV Jones. (Plate 55. fig. 16.) 

 Botalia dentata, Parker & Jones ('65), p. 387, pi. 19. figs. 13 a-c. 



A somewhat obscure rotaline form, with reticulate secondary growth'on 

 the shell-surface and with a few short spines on the periphery, may be 

 provisionally referred to this species. 



Occurrence. — Sta. 11, 1417 fms. 



Genus Calcarina, Orh. 



Calcarina spengleri, J. F. Gmel., sp. 



The specimens found here are more or less abraded, and resemble those 

 from a detrital and shallow-water deposit. Nevertheless the species has been 

 once recorded from deep water, o£E Amboyna at 1425 fathoms. 



Occurrence. — Sta. 78, 1570 fms. 



Genus Tinoporus, Montfort. 

 Tinoporus baculatus, Montfort. 



This species is usually found in moderately shallow water. The examples 

 from Funafuti are all somewhat abraded. 



Occurrence. — Sta. 55, 507 fms. ; 78, 1570 fms. 



Genus POLYTREMA, B'lSSO. ' 



POLYTREMA MINIACEUM, Pallas, Sp. 



The sounding recorded below represents a moderately shallow-water fauna, 

 whose limit has been reached at this depth. The tests of P. miniaceum are 

 here quite typical and have the characteristic rose-pink colour of specimens 

 from less depths. 



Occurrence. — Sta. 55, 507 fms. 



Family NUMMULINID^.. 

 Genus NoNiONiNA, Orb. 

 NONIONINA DEPRESSULA, Walker ^- Jacob, sp. 



It is remarkable to find this almost essentially shallow-water species so 

 common at the great depths recorded below. The specimens are quite 

 typical. 



Occurrence. — Sta. 3, 2715 fms. ; 10, 1485 fms. ; 11, 1417 fms. ; 13^ 

 1050 fms. ; 48, 2298 fms. ; 109, 604 fms. ; 140, 2476 fms. ; 148, 2620 fms. j 

 149, 2550 fms. ; 150, 2438 fms. 



