398 MR. F. CHAPMAN ON DEEP-SEA FORAMINIFERA 



MiLiOLiNA VENUSTA, Karrev, sp. 



This is by far the commonest miliolid in the present series ; and this is 

 only to be expected from its well-known preference for deep water. It was 

 this species, among others, which gave the aspect of a fairly deep-water 

 deposit to the Upper Gault of Folkestone (see Chapman, '91, p. 9). 



Occurrence.— ^i^. 3, 271.5 fms. ; 10, 1485 fms. ; 11, 1417 fms.; 1.3, 

 1050 fms. ; 19, 1995 fms. ; 48, 2298 fms. 



MiLIOLINA FERUSSACII, Orh., Sp. 



Occurrence. — Sta. 3, 2715 fms. 



MiLIOLINA ALVEOLINIFORMIS, Brady. 



This form is nearly always fomid in the neighbourhood of coral reefs ; bnt 

 Millett records it from the Malay Archipelago, from anchor mud. The 

 deepest habitat previously noted was 420 fathoms. 



Occurrence. — Sta. 55, 507 fms. 



Genus SiGMOiLiNA, Schlumhercfer. 



SlGMOlLINA SCHLTIMBERGERI, SUvestri. 



Sigmoilina schlumbergeri, Silvestri ('04), p. 267 ; Chapman ('07), p. 21, pi. 2. fig. 42. 



Our specimens represent the smooth, non-agglutinate variety. The sand- 

 encrusted form was described by Brady as Planhpirina celata, Costa, from 

 which it differs in having a more even contour and inconspicuous sutures. 

 The above species has not been recorded from so great a depth as the present, 

 the maximum limit of the ' Challenger^ examples being 1630 fathoms. 



Occurrence. — Sta. 48, 2298 fms. 



Sigmoilina sigmoidea, Brady, sp. 



Dr. H. B. Brady has given the bathy metrical range of this species as 

 300-900 fathoms, so that the present series shows it to be of exceptionally 

 deep-water habitat in this area. Dr. Flint has recorded its deepest limit,, 

 from the W. Indies, as 1170 fathoms. 



Occurrence.— ^iu.. 3, 2715 fms. ; 11, 1417 fms. ; 13, 1050 fms. ; 20, 

 1215 fms. ; 21, 2195 fms. ; 23, 735 fms. ; 45, 2107 fms. 



Genus Ophthalmidium, Kilhler. 



Ophthalmidium inconstans, Brady. 



Two typical specimens occur in the sample recorded below. 

 Occurrence.— ^i\x. 13, 1050 fms. 



