28 THE VOYAGE OF H.M.S. CHALLENGER. 
Porites explanata, n. sp. Tichopora tenella, un. sp. 
Rhodarea calicularis, Lamk. Millepora murray, n. sp. 
a tenuidens, w. sp. ‘5 gonagra, Edw. and H. 
Of these the following fourteen are new species :— 
Stylophora flabellata. | Madrepora manna. 
. cellulosa. e parilis. 
Psammocora ramosa. Montipora irregularis. 
Hydnophora tenella. _ Porites explanata. 
Cycloseris discus. | Rhodarxa tenuidens. 
Madrepora angulata. Tichopora tenella. 
a canalis. _ Millepora murrayi. 
One of these, Tichopora tenella, is the type of a new genus. 
This is the first published record which gives an account of the Reef-Corals of 
Samboangan. Many other species than those included have been recorded from the Sulu 
Sea and from the Philippines generally, which doubtless will be found to flourish at or 
about Samboangan. 
The Reef-Corals now known from the Philippines and Sulu Sea include the following 
ninety-four species :— 
Stylophora digitata, Blainv. | Galaxea ellisix, Edw. and H. 
A flabellata, n. sp. +3 clavus, Dana. 
al cellulosa, n. sp. » fascicularis, L. 
Pocillopora acuta, Lamk. »  heragonalis, Edw. and H. 
; danucornis, Esper. | Lithophyllia lacrymalis, Edw. and H. 
re danx, Verrill. — Trachyphylla anarantus, Dana. 
<; verrucosa, Ell. and Sol. Symphyllia sinuosa, Quoy and Gaim. 
Seriatopora caliendrum, Ehre. Hydnophora tenella, n. sp. 
- valida, Ehre. Astrea ordinata, Verrill. 
= contorta, Studer. » fragilis, Dana. 
cs ocellata, Ehre. | Cyphastrea pleiades, Ell. and Sol. 
compressa, Studer. ‘; microphthalma, Lamk. 
. cervina, Lamk. - brueggemannt, n. sp. 
* octoptera, Ehre. Goniastrea grayi, Edw. and H. 
a gracilis, Dana. Merulina crispa, Dana. 
- crassa, N. Sp. Ms laxa, Dana. 
Ulangia stokesana, Edw. and. H. Echinopora undulata, Dana. 
Cladocora conferta, Dana. Fungia patella, Ell. and Sol. 
Galaxea tenella, Briig. »  dentata, Dana. 
