﻿84 MADKEPOEAEIA. 



the faces of hood-papilla:, and mostly slightly tilted so as to look towards the growing 

 edge. 



a, b. Macclesfield Bank, 32 fathoms. Coll. Bassett-Smith. (Type.) 



c. (A distorted fragment) Macclesfielfl' Coll. Bassett-Smith. 



Bank, 28 fathoms. 



Variety a. 



Two fi-agments from the same locality, but found at a less depth, differ from the above in 

 that all the calicles are so distinctly tilted towards the growing edge as to be covered by very 

 short nariform upgrowths of the streaming layer ; among these short, irregular, hood-like 

 coverings, there occur long thin radial ridges which are only exceptionally nariform. The 

 calicles are larger,, but of the same general character as those- of the- type. On the under 

 surface, calicles are rare, none appearing till about 3 cm. from the growing edge, when, there 

 being no epitheca as in the type, a few seem to break through. 



These two specimens were labelled M. lima ?, Lamarck, by llr. Bassett-Smith, and it is 

 true that the general' method of growth is very similar to that of the foliate MontiporiB. Their 

 more upright growth, their general appearance and absence of epitheca are in accord with 

 this. The Lamarckian species is, however, I believe, the same as "foliosa," and it is better 

 to keep these specimens, wliich are but small fragments a few cm. long, nearer to those from 

 the same locality with which they are more obviously allied. 



d,,6.. Macclesfield. Bank, 26^ fathoms.. H.M.S. ' Eambler.' 



64. Montipora crista-galli.. 



Pontes crisfa-galli, Ehrenberg, Korallenthiere (lS3i)p. 116. 



Non Manojpora crista-galli, Dana, Zooph. (1848) p. 494, pi. xl\'i. figs. 1, la (= M. aspera, Yerrill). 

 Non Montipora crista-galli, Milne-Edwards aniHaime (= M. abrotanoides), Cor., iii. (1860) p. 211. 

 Montipora crista-galli, EHunzinger, Korallenthiere, ii. (1879) p. 34, pi. xi. fig. 1 ; pi. v. fig, 6 ; pi. x. 

 fig. 5. 



Description. — Corallum a branching tuft, the- closely crowded branches and twigs often- 

 fusing together so as to form broad flat erect leaf-like plates with their upper edges toothed 

 and lobed. At the sides of the plates ridges may run down a s-hort way. 



Calicles from 1 to 0*5 mm. in diameter, regularly distributed about 1 diameter apart. 

 Apertuie very irregular, the interseptal loculi opening freely to the meshea of the surface 

 ccenenchyma. j\Iore than six septa, of which one or two directives are often conspicuous. 

 Noi calicles appear along the growing crests and tips- of the branches and twigs. 



The ccenenchyma appears at the surface as a very irregularly porous reticulum rising 

 to form projecting lower margins to the calicles ; these projections are concave and hardly 

 ever form a wall right round the whole calicle. These projections make the coral look very 

 rough. 



The above diagnosis is based upon Dr. Klimzinger's re-description and photographs 



