486 ZOOPHYTES. 



G. caulibus erectis laminatis, crassis, non ramosis, polypo apicali nullo. 



62. MADREPORA LABROSA. (Dana.) 



M. laminata, laminis latis, erectis, ^-1" crassis, lobatis, lobis 1-2" 

 latis, margine rotundatis. CoraUum caliculis lateralibus erectis et con- 

 fertissimis, brevibus et crassimis, fere L'" latis et !-!'" longis, cochle- 

 ariformibus, non striatis, margine "' crasso ; stella conspicua, duabus 

 lameUis prominulioiibus ; caliculis apicalibus vix angustioribus sed 

 coalitis. 



Laminate, plates erect, obtuse, 1 to 2 inches broad, and to 1 inches 

 thick, margin rounded. Corallum having the lateral calicles very 

 crowded, erect, short and very stout, nearly 1 lines broad, and 1 to 

 l lines long, cochleariform, not striate, margin a line thick; star 

 distinct, two lamellae a little the most prominent ; apical calicles 

 scarcely smaller but coalescent. 



Plate 43, fig. 3, part of corallum, natural size; plate 31, figs. 10 a, 

 10 b, views of calicle, enlarged. 



The Sooloo Sea. Exp. Exp. 



The specimen in the collections is a broad, thick plate, eight inches 

 wide, half an inch thick at the margin, and one and a half inches 

 below. Its very large thick-lipped calicles, not striate, arid the size of 

 the plate, distinguish it from the two following species. 



63. MADREPORA SECURIS. (Dana.) 



M. cespitose laminata, laminis erectis, elongatis, apice quadratis et valde 

 truncatis, 2-2^" latis, vix lobatis, i-1" crassis, super fide incequali. Co- 

 rallum caliculis lateralibus confer tissimis, breviter tubiformibus,validis, 

 |-1'" latis, vix striatis, aperturd integra, arbiculatd, stella conspicua. 



Cespitose laminate, plates erect, oblong, quadrate at apex, and strongly 

 truncate, scarcely lobed, to 1 inch thick, surface uneven. Co- 

 rallum with the lateral calicles very closely crowded, stout and 

 short tubiform, | to 1 line broad, scarcely striate, aperture entire, 

 circular, star distinct. 



