476 ZOOPHYTES. 



Feejee Islands. Exp. Exp. 



A stout species, remarkable for the short-conical extremities of the 

 cylindrical branches, and the crowded unequal calicles, mostly tubi- 

 form, and placed at right angles with the surface. The striatures of 

 the calicles are neat and entire. The specimen in the collections is a 

 branch six inches long. It resembles the brachiata, but differs in its 

 stouter branches and branchlets, and its strongly striate calicles. 



The Heteropora cervicornis of Ehrenberg (op. cit. G. Ixix. sp. 10), which is far re- 

 moved in its characters from Lamarck's cervicornis, a West India zoophyte, may be 

 identical with the above species. 



49. MADREPORA HYSTRIX. (Dana.) 



M. humilis,fruticosa, late ramosa, prolifera, ramis polypisque valde diva- 

 ricatis, interdum reflexis. Corallum caliculo apicali oblongo lineam- 

 que lato ; lateralibus incequalibus, 1^-4'" longis, sparsis, divarica- 

 tis, tubiformibus, vel tubo-nariformibus, aliis obsolescentibus, aliis 

 proliferis, subtilissimc scabro-striatis, totis validis sed margine non 

 incrassatis. 



Low fruticose, spreading ramose, proliferous, branches and polyps 

 very divaricate and sometimes reflexed. Corallum with the apical 

 calicle oblong, a line broad ; the lateral unequal (H to 4 lines long), 

 divaricate, scattered, tubiform or tubo-riariform, some obsolescent, 

 some proliferous, very finely scabro-striate, stout, but margin not 

 thick. 



Plate 40, fig. 1, corallum, natural size; plate 31, figs. 5, 5 a, view 

 of calicle and cell, enlarged. 



Feejee Islands. 



The divaricate branches and the calicles standing at right angles 

 with the branches or even reversed, varying much in length to a 

 third of an inch, give a bristled aspect to the clump. Independent of 

 the calicles, the branchlets are hardly more than a sixth of an inch 

 thick, and the branches at base about half an inch. The specimens 

 in the collections are four to five inches high, and five to six inches 

 broad, and consist of several branched stems from the same base. 



