TRIBE II. CARYOPHYLLACEA. 4H 



cato-contorted ; 1 to l lines thick at the margin. Corallum with 

 the calicles short, cylindrical, 2 lines in diameter ; margin subacute ; 

 many very short or obsolete. 



This species has the general habit of the peltata, but grows in some- 

 what thinner fronds, with smaller calicles, which, at margin are nearly 

 acute. It attains a breadth of ten or twelve inches. It appears to 

 be the peltata of Ehrenberg, and, as that name is applied to another 

 species, we have changed it as above. 



Turbinaria peltata, Ehrenberg, G. xlix. sp. 2. 



4. GEMMIPORA CRATER. (Pallas.) Blainville. 



G. explanata ; fronde stipitatd, infundibuliformi, margine I'" crasso. 

 Corallum caliculis brevibus, fere !"' latis. 



Explanate; frond stipitate, infundibuliform, margin a line thick. 

 Corallum with the calicles short, nearly l lines in diameter. 



East Indies. 



This species has much smaller calicles than the preceding. The 

 slightly larger calicles and thicker fronds distinguish it from the cine- 

 rascens. Esper and Pallas describe it as finely striate without. 



Madrepora crater, infundibuliformis, stri- Explanaria infundibulum, Lamk., ii. 398, 



ata, Pallas, Zooph., 332. No. 1. 

 , Esper, Fortsetz., i. 91, tab. 74, and , Lamouroux, Encyc., 385. 



Fortsetz., ii., tab. 86, fig. 1 ; the first Turbinaria crater, Oken, Zool., i. 67. 



figure is cup-shaped, six inches broad, Explanaria crater, Blainv., Man., 387, pi. 



finely striate below, with a stout obconi- 56, fig. 6 ; a reduced figure, badly drawn. 



cal pedicel, and scattered calicles within. 



5. GEMMIPORA CINERASCENS. (Ellis.} Dana. 



G. explanata ; fronde stipitata, late hypocrateriformi, scepe plicato-con- 

 torta, tenui, margine J'" crasso. Corallum extus rugatnm ; intus 

 caliculis brevibus, L'" latis, conicis vel globoso-conicis, cellis '" latis et 

 profundis. 



