420 MR. F. CHAPMAN ON DEEP-SEA FORAMINIFERA 



Genus Truncatulina, Orb. 

 Truncatulina lobatula, Walker Sf Jacob., sp. 

 Occurrence. — Sta. 109, 604 £ms. 



Truncatulina variabilis, Orh.^ sp. 

 Occurrence. — Sta. 10, 1485 £ms. 



Truncatulina refulgens, Montfort, sp. 



The range in depth of this species is very great, and previous records 

 extend down to 2400 fathoms. 



Occurrence. —Sta. 4, 2728 fms. ; 109, 604 fms. 



Truncatulina akneriana, Orb., sp. 



Dr. Egger records this species from the ' Gazelle ' soundings at depths 

 from 347-951 metres. 



Occurrence.— ^ta. 20, 1215 fms.; 21, 2195 fms.; 23, 735 fms.; 109, 

 604 fms. 



Truncatulina ungeriana, Orb., sp. 



This and the following species are by far the commonest of the present 

 genus in the Funafuti deep-sea deposits. The ' Challenger ' obtained the 

 deepest examples of T. ungeriana from 2600 fathoms. 



Occurrence.— Bt^. 4, 2728 fms. ; 11, 1417 fms. ; 13, 1050 fms. ; 19, 

 1995 fms. ; 20, 1215 fms. ; 21, 2195 fms. ; 45, 2107 fms. ; 48, 2298 fms. ; 

 140, 2476 fms. ; 142, 2435 fms. ; 148, 2620 fms. ; 149, 2550 fms. 



Truncatulina wuellerstorfi, Schwager, sp. 



The deepest examples hitherto recorded were from 2435 fathoms, by the 

 ' Challenger.' 



Occurrence.— ^ia. 2 » 1489 fms. ; 3, 2715 fms. ; 4, 2728 fms. ; 10, 1485 fms. ; 

 11, 1417 fms. ; 13, 1050 fms. ; 20, 1215 fms. ; 21, 2195 fms. ; 48, 2298 fms. ; 

 105, 2400 fms. ; 148, 2620 fms. 



Truncatulina haidingeri. Orb., sp. 



Occurrence.—StSi. 11, 1417 fms. ; 6S, 1143 fms. ; 138, 2688 fms. 



Truncatulina humilis, Brady. 



This is a deep-water form, first found in the ' Challenger ' soundings from 

 the North Atlantic and North Pacific. 



Occurrence.—Sta. 3, 2715 fms. ; 140, 2476 fms. 



