258 
APPENDIX. 
formed of coral, had it not been said (Boteler’s Nar. vol. ii. 
p. 39) that they were composed of sand : not coloured. — 
Latham's Bank is a small island fringed by coral-reefs ; 
but being only 10 feet high it has not been coloured. — - 
Monfeea is an island of the same character as Pemba : its 
outer shore is fringed, and its southern extremity is con- 
nected with Keelwa Point on the main land by a chain of 
islands fringed by reefs ; coloured red. The four last-men- 
tioned islands resemble in many respects some of the islands 
in the Red Sea, which will presently be described.— 
Keelwa : in a plan of the shore, a space of 20 miles N. and 
S. of this place is fringed by reefs, apparently of coral ; 
these reefs are prolonged still further southwards in Owen’s 
general chart. In the plans of the rivers Lindy and Mong- 
hoxu (9° 59' and 10° 7' S.) the coast seems to have the same 
structure, coloured red. — Querimha Islands (from 10° 40' 
to 13° S.) : a chart on a large scale is given of these 
islands ; they are low and of coral formation (Boteler’s 
Nar. vol. ii. p. 54) ; and generally have extensive reefs pro- 
jecting from them, which are dry at low water, and which 
on the outside rise abruptly from a deep sea ; on the inside 
they are separated from the continent by a channel, or 
rather a succession of bays, with an average depth of 10 
fathoms. The small headlands on the continent also have 
coral banks attached to them ; and the Querimba islands 
and banks are placed on the line of prolongation of these 
headlands, and are separated from them by very shallow 
channels. It is evident that whatever cause, whether the 
that that can be so. On the other hand, the reef is so small and the 
bottom so clear, that it is difficult to understand how they could 
have missed the shoaler water if it existed then, as it is very plain 
to see. 
‘ Other reefs, with from 7 to 10 fathoms on them, seem not to have 
altered. 
‘ W. J. S. Whakton, Commander E.N. 
‘ Mauritius : Sept. 15, 1874.] 
