RED SEA AND EGYPTIAN PORITES. 248 
Dr. Klunzinger gives an illustration, but without description, of a specimen which he 
thought was the same, as indeed it may have been (see his pl. v. fig. 20). 
There are two words in the original description which require comment. The corallum 
is said to be “enertitant” and the walls of the calicles to be thick. The first word had reference 
clearly to the appearance presented by the living layer, which appeared to the author to form 
an encrusting cap over a massive stock. It was obviously the last of the free edges which led 
the early observers astray (see the Introduction to Vol. IV. p. 24, fig. 2, A, B). The word 
encrusting, as it is now used, only applies to the ultimate form of the stock. The ultimate 
form of Milne-Edwards’ P. alveolata is massive, as might have been gathered from his 
description, for he adds that the encrusting living layer builds up massive stocks. 
It is difficult to know exactly what he meant by the walls being “épaisses.” For 
Dr. Klunzinger, like myself, found them thin. According to the modern terminology, the 
walls are only thick when they are reticular. Milne-Edwards probably meant that the skeletal 
elements of the simple wall were stout, and that is the character seen in Dr. Klunzinger’s 
photograph. 
There is no specimen of this in the National Collection. Its resemblance to the British 
Museum specimen of P. Red Sea 1, which was one of Dr. Klunzinger’s P. solida, cannot be 
overlooked. 
255. Porites Red Sea 9. (P. Lrythrec nona.) 
[Red Sea, coll. Klunzinger; Berlin Museum. | 
Syn. Stylarea punctata Klunzinger, Die Korallthiere des Rothen Meeres, ii. (1879) p. 44, pl. y. 
fig. 27.* 
Description.—The corallum forms small, somewhat convex, encrusting colonies. 
The calicles are deep, The walls are stout, porous, trabecular, or echinulate. The septa 
are slight ridges projecting from the wall. There is no trace of pali, but a columellar tubercle 
rises in the centre. 
On account of these two last-named features Dr. Klunzinger suggested the establishment 
of a new genus, as was done by Milne-Edwards and Haime and then retracted—for details see 
under P. Moluccas 1 (= Espers’ Madrepora punctata). But there can be no question in my 
mind from a study of Dr. Klunzinger’s photograph that this is a young colony of Porites, in 
which the calicles are small and crowded and the intra-calicular skeleton deficient, as is 
commonly the case in very young colonies of Porites. The walls show quite the typical Porites 
wall, being a zigzag so irregular as almost to pass into a reticulum, The absence of pali is 
usual in deep calicles throughout the whole genus, while the early appearance of the columellar 
tubercle in the development of the complete intra-calicular skeleton need have no special 
significance. Dr, Klunzinger identifies his own specimens with others of Ehrenberg, as already 
described on p. 161. (See P. Moluccas 1.) 
* From Dr. Klunzinger’s text it was difficult to decide whether the photograph was not of one 
of Ehrenberg’s specimens. But in the description of the plates he adds “aus meiner Sammlung.” 
Hy Ye 
