Madrepora in the British Museum. 4G3 



central branches the corallites are more unequal, tubular, 

 dimidiate, or spout-shaped, with smaller thin-walled ones 

 between, the majority becoming dilated, nariforra, bursiform, 

 or subimmersed lower down, many 2*5 millim. thick; between 

 these numerous stout tubular corallites, 2*5 millim. long and 

 broad, occur at irregular intervals, which indicate new out- 

 growths. Star moderate. 

 Habitat not recorded. 



Madrepora squamosa. 



? Madrepora tnillepora, Dana (non Ehreuberg), Zoophytes, p. 44(5, 

 pi. xxxiii. fig. 2. 



Corallum corymbose or subvasiform, flattened above, 

 branches rarely coalescent. Main branches oblique, not flat- 

 tened on under surface, but bearing numerous horizontal 

 twigs 1*5 to 3 centim. long and 6 millim. diameter, provided 

 with subimmersed corallites. Branchlets on the upper surface 

 simple or subsimple and erect near the centre of the colony, 

 more divided near the periphery ; length of central ones 4*5 

 centim., diameter 8 millim. at the base, 4 millim. at the apex. 

 Apical corallites '2'6 to 3'5 millim. diameter, cylindrical. 

 Lateral corallites of the central branches small, equal, labellate 

 with rounded lip spreading almost at right angles, rarely over 

 1 millim. diameter and 075 millim. long, but becoming wider 

 and subimmersed towards the base. On the marginal branches 

 the corallites are much larger and more distant; usually 2 

 millim. diameter, 2 millim. long, and the lips nearly 2 millim. 

 apart ; scarcely so spreading near the apex. Star moderately 

 distinct in the corallites of the outer branches, but the septa 

 are almost undistinguishable in the corallites of the central 

 branches. 



Great Barrier Reef [Saville-Kent) . 



Madrepora syrinf/odes. 



M. cf. Durvillei, Ortmanu, Zool. Jahrb. Bd. iii. p. 151. 



Corallum bushy or of the bottle-brush type. Branchlets I'O 

 to 3'5 centim. long and 8 millim. tliick, bearing several 

 spreading proliferous corallites 1 centim. long, the stouter 

 corallites of which also bear buds. Apical and proliferous 

 corallites 3 millim. diameter, not over 2 millim. exscrt, 

 scarcely tapering, margin only slightly rounded. Lateral 

 corallites at an angle of 45°; either tubular, 1-75 millim. 

 diameter and 3 to 4 millim. long, or shorter and tlien nariform. 

 Septa scarcely recognizable in the lateral corallites, but well 

 developed in the apical and proliferous ones. 



