366 MESSES. E. HEEON-ALLEN AND A. EAELAND ON THE 



Between Ras Afunji and Ras Nondo, communicating with the sea by Wamizi 

 Pass, and to the south by Wamizi Channel. Arenaceous forms attached to shell- 

 fragments. Species and varieties =176. 



Station II B. (Label) " Wamizi Pass." 



A jar containing a small quantity of very muddy sand in formalin, washed off larger organisms which 

 had heen preserved in tanks. Residue after washing : — 6-5 cc. of clean chalk-white fine material, almost 

 entirely composed of brilliantly white and clean Foraminifera (notably Polystomdla millettii, sp. n.). 



Wamizi Pass lies between Eongwi Island and Wamizi Island, which lie due east 

 and west off the coast. Species and varieties =146. 



Station III. (Label) "Mtundo Bay. Bottom: — Sand, Shell, and Coral. Depth 6 fms." 



A dark grey sharp siliceous sand, grains varying much in size. Yery little organic debris noticeable, 

 and that chiefly moUuscan. Ostracoda very plentiful. Bulk of material after washing ; — 87'5 cc. 

 Coarse material .... 60 cc. 

 Heavy „ .... 16 cc. 



Elutriated „ .... 10 cc. 

 Floated ,, .... 1-5 cc. 



Mtundo Bay is one of the divisions of Mazimbwa Bay, lying between Ras Nondo. 

 and Ras Msangi. Between Mtundo Island and Wamizi Island is Mtundo Pass. It 

 communicates to the south with Tambuzi Bay by Kifuki Channel, between Kifuki 

 Island and Ras Msangi. Species and varieties =214. 



Station IV A. (Label) " Mazimbwa Bay. Bottom: — Mud. Depth 15 fms." 



A dark grey siliceous sand, coarse and fine mixed. Some shell-debris. 



Mazimbwa Bay lies between Ras Msangi and Ras Ulu ; the two capes, twelve miles 

 apart, are almost united by Congo Island and a curved line of reefs. It opens to the 

 north by Meromyi Bar and to the south by Myonji Pass. 



Station IV B. (Label) " Tambuzi Bay. Bottom : — Rock and Mud." 



Owing to a misunderstanding, the material from these two Stations was mixed together. Bulk of 

 material after washing : — 168 cc. 



Coarse material .... 52 cc. (Coarse mineral sand, coral-fragments, shell and algal debris, 



Orbitolites, small Eohinoderms). 

 Heavy „ .... 101 cc. 

 Elutriated „ .... 13 cc. 

 Floated „ . , . . 2 oc. 



Tambuzi Bay lies between the line of reefs above referred to and the outer islands 

 of Nyuni, Tambuzi, Masasari Rocks, and Myonji. It connects with the sea by Nyuni 

 Pass and Suna Pass, and with Nameguo Bay by Tambuzi Channel. Species and 

 varieties =185. 



