﻿TUBERCULATE MONTIPOR^. 139 



they may meet together to form small groups of thin foveolate ramparts which generally rise 

 ap above the surrounding level. 



This interesting coral from some unknown locality was named by Brtiggemann " Montipora 

 foliosa." The above description does not confirm this identification. The small, compara- 

 tively thick, ladle-shaped folia, clustered irregularly, with no appearance of spiral twisting, 

 would alone separate it from all the other foliate Montipores, while in its surface markings it 

 stands quite alone. Where the tubercles are formed they most resemble those of M. hispida. 

 The extreme delicacy of the reticulum, and the friability of the specimen, especially of the 

 thick edges, is also peouhar. The figure (PI. XXXIV. fig. 5) includes none of the tubercles. 



a. LocaKty not recorded. [Register No. 47. 1. 19. 20.] (Type.) 



116. Montipora aspera. 



Marwpora crista-galli, Dana (non Ehrenberg), Zooph. (1848) p. 494, pi. xlvi. fig. 1. 

 Montipora aspera, Verrill, in Dana's Corals and Coral Reefs (1875) p. 333. 



Description. — Corallum " erect-subcespitose inciso-lobate," compressed, angular and alate, 

 lobes often cultrate, crests without calicles, stocks often a foot in height and same in breadth. 



CaUcles very distinctly six-rayed, 0"6 mm. in diameter, generally nearly naked, but 

 occasionally with a few minute " spinuliform papillse " about them. 



Coenenchyma very fragile, " spinuloso-asperate " ; the " spinuliform papillse " sometimes 

 run into thin longitudinal ridges ; under a lens the surface is neatly " laciniate-porous," or 

 consists of mossy points about the pores. 



The above is constructed from Dana's description of a large Montipore from Singapore. 

 The figures unfortunately do not help much in diagnosing the type. The spinuliform papillas 

 are probably tubercles in the restricted sense in which that term is here used. We thus have 

 ' a fragile tuberculate montipore mounting upwards, hardly branching, the upward growing 

 corallum dividing up and fusing again irregularly : the angular compressed wings formed in 

 this way seem to be a special character of the type. There is no specimen in the National 

 Collection which answers to this description. . . 



Its locality, Singapore, suggests its affinity with M. hispida, from which, however, it 

 differs in manner of growth. 



117. Montipora fragilis. (PL XXXIV. fig. 6.) 



Montipora fragilis, Quelch, Cljal. Rep. Reef Corals (1886) p. 171, pi. viii. figs. 1, la, 16. 



Description. — Corallum forms long slender upright stems some 9 to 10 cm. in height, 

 irregular, flattened and branching, the branches running up close to the stem. 



The calicles are small, 0'4 mm., rather scattered, 1 mm. and more apart, the aperture 

 irregular, sharply cut out from the thin flakes of the coenenchyma ; six short, petaloid, 

 interseptal loculi, with occasional indication of a septum of the second cycle. 



T 2 



