456 ZOOPHYTES. 



the apical calicle stout, cylindrical, rather more than a line broad, 

 the lateral much crowded and unequal, compressed-nariform, l 

 lines long, sometimes tubo-nariform and proliferous : under surface 

 crowdedly covered with short calicles. 



Ceylon, Indian Ocean. Rev. G. A. Apthorp. 



The clump resembles the nasuta in general appearance, but its 

 calicles are more unequal, and the apical calicle is twice as broad ; 

 moreover, the branchlets are shorter and more unequal, the surface 

 below is crowdedly muricate, and the marginal branchlets are coa- 

 lescent and not free. The calicles are about a line and a half long, 

 with many quite small interspersed, and others larger that are tubi- 

 form. The clump measures fourteen inches by eleven in breadth, 

 and five inches in height. The pedicel below occupies two-thirds the 

 whole breadth of the base. 



23. MADREPORA CORYMBOSA. (Lamarck.} 



M. late cespitosa, convexa ; ramulis digitiformibus, subsimplicibus, 3-4'" 

 latis et 2| 3" longis, subteretibus. Corallum caliculo apicali lato 

 (1-J^'"); lateralibus l^-lf" longis, tubiformibus, apice obttquis, 

 margine echinulatis, extus striatis et scabrosis, paucis caliculis minutis 

 spar sis ; stelld brevissimd aut inconspicud, duabus lamellis paulo pro- 

 minulioribus. 



Broad cespitose, convex above; branchlets digitiform, subsimple, 3 to 

 4 lines broad and 2 to 3 inches long, subterete. Corallum with 

 the apical calicle large (1 to \\ lines broad); the lateral 1^ to 1| 

 lines long, tubiform, with the summit oblique and margin echinu- 

 late; exterior striate and scabrous; a few minute calicles inter- 

 spersed; star very short or indistinct; two of the lamellae a little 

 the most prominent. 



East Indies, and Indian Ocean. 



This species forms broad corymbed clamps, resembling the nasuta 

 in form ; but it has not the much-compressed, nariform calicles of that 

 species, and the apical calicle is quite large. The under surface of 

 the outer branchlets of the clump have a few large arid stout tubular 

 calicles. From those of the following species, to which it is allied, it 



