rOEAMINIFEEA OF THE KEEIMBA AECHIPELAGO. 367 



Station Va. (Label) " Nameguo Bay. Bottom: — Mud and Rocks." 



Station V b. (Label) " Luseti Bay. Bottom : — Mud and B,ocks."' 



Owing to the same misunderstanding, these two samples were also mixed. The mixed material is a 

 brown-grey sand, siliceous and calcareous in equal proportions, the latter being moUuscan and nullipore 

 algal debris. Hulk of material after washing : — 630 cc. 



Coarse material .... 450 co. (Coarse and fine shells and coral debris ; Orbitolites, Operculina, 



Nullipore, etc.). 

 Heavy „ .... 152 cc. 

 Elutriated „ .... 20 cc. 

 Floated „ .... 8 cc. 



Namegiio Bay is a continuation of Tambnzi Bay, but is separated from it on the 

 north by the line of reefs. It communicates with the sea by Tambuzi Pass and 

 Nameguo Pass. 



Luseti Bay lies between the line of reefs to the south of Nameguo Bay and the 

 mainland, and communicates with the sea by Kero-Nyuni Pass. It is connected to 

 the south with Kero-Nyuni Bay by the Kero-Nyuni Channel. Species and varieties 

 = 152. 



Station VI. (Label) " Kero-Nyuni Bay. Bottom : — Sand. Depth 5-10 fras." 



A dark grey muddy sand, composed of coarse and fine grains. About 25 per cent, of shell-debris and 

 calcareous fragments. Bulk of material after washing: — 1113 cc. 



Coarse material (Grade 1), 350 cc. (A tangled mass of shell- and coral-debris, and small Modiolaria 



varicosa, Gould* ; Orbitolites and coral-fragments matted 

 together with byssus). 

 „ „ (Grade 2), 348 cc. (Shell-debris, Orbitolites, Operculinn, etc.). 



„ „ (Grade 3), 300 cc. (Large Miliolids, PulvinuUna, Oypsina, Operculina, and other 



large forms). 



Heavy „ 97 cc. 



Elutriated ,, 14 cc. 



Floated „ 4 cc. ■ 



Between Eas Yamkumbi and Ras Pekawi. It is bounded on the north by the line 

 connecting Ras Yamkumbi and the Wadiazi Reef, and on the south by a similar line 

 connecting Ras Pekawi with Mjumbi Island. It communicates with the sea by 

 Mjumbi Pass, and with the south by Pekawi Channel. Species and varieties =209. 



Station VII. (Label) " Pekawi Bay. Exposed Coral-Reef." 



A muddy grey-brown sand, speckled with shell-debris. A difficult sample to clean, the residue con- 

 sisting largely of clayey insoluble brown granules, probably derived from decomposed coral, which 

 adhered to one another and to the Foraminif'era. Bulk of material after washing ; — 204 cc. 



Coarse material .... 87 cc. (Chiefly shell-debris). 



Heavy ,, ... 110 cc. 



Elutriated „ .... 5 cc. 



Floated „ 2 cc. 



* Note. — Mr. G. C. Eobson informs us that, so far as the Natural History Museum is aware, this species 

 has hitherto been recorded only from Australia. 



