234 ZOOPHYTES. 



bottom of the cell. These teeth are usually confined to six or eight 

 of the larger lamellae. The lamellae are crowded together below, and 

 the bottom of the cell is scarcely seen. 



Mad. cavernosa(Tj Forsk. Anitn. Egyp. 132. Astrcea versipora, Lamour., Encyc., 130. 



Astrcea versipora, Lamk., ii. 414, No. 19. Favia versipora, Ehrenberg, op. cit. G. 



A. Dipsastrcea versipora, Blainville, Man. lix. sp. '2. ; states that the animal has a 



373. pale-brown colour, with a green disk. 



35. ASTR^EA DENTICULATA. (Ellis.) 



A. subglobosa. Corattum cellulosum ; cellis suborbiculatis, semipolli- 

 caribus, subprofundis, intus coronatis ; cottibus leviter sukatis ; 

 lamettis incequalibus, et incsqualiter exsertis, verticalibus, apice sub- 

 truncatis. 



Subglobose. Corallum cellular ; cells somewhat circular, half an inch 

 wide, rather shallow, coronate within ; ridges slightly sulcate ; 

 lamellae unequal and unequally exsert, vertical, subtruncate at 

 apex. 



Plate 12, fig. 6, outline view of a cell, natural size; 6 a, profile of 

 cell and lamellae ; 6 b, transverse section of corallum, natural size ; 

 6 c, vertical section of the same. 



East Indies. Pacific Ocean. Exp. Exp. 



The unequally exsert lamellae give a ragged appearance to the 

 surface and cells. The depth of the cells scarcely exceeds two-thirds 

 the diameter. 



A specimen from the Pacific Ocean, in the Expedition collections, 

 answering to the description of this species, has a coarsely cellular 

 texture ; the septa, in a transverse section, consist partly of large 

 cellules in a single series, and the stars are few-rayed, with rarely a 

 cross partition to the cellules. The lamellae are nearly entire on the 

 inner vertical margin, but have often two or three teeth at apex. 



Mad. denticulata, Ellis and Solander, tab. teeth within the cell is scarcely appa- 



49, fig. 1 ; corresponds with the speci- rent. 



mens examined, except that the inequa- Astrcea denticulata, Lamk., ii. 413, No. 18. 



lity of the exsert lamellae is hardly dis- Astrcea denticulata, Lamour., Exp. Meth. 



tinct enough, and the corona or circle of 59, tab. 49, fig. 1 ; Encyc., 130. 



