TRIBE I. ASTR^EACEA. 



177 



Large ; disks usually nearly circular, sometimes lobed. Corallum 

 large, branches short; calicles suborbicular, from 1 to l inches 

 broad, often lobed (sometimes with 4 to 5 lobes), exterior every 

 where lamello-striate, and dentato-echinate ; cell with a rounded 

 margin ; lamellse thin, regularly serrato-dentate. 



Plate 8, figure 4, section of cell showing the outline of lamellae. 



West Indies. 



In many characters this species resembles the carduus, but the cali- 

 cles are much smaller and shorter. It differs from the following in 

 the thin lamellse, and their teeth continuing regularly over the apex ; 

 also in the strong dentate lamello-strise of the exterior, which are dis- 

 tinct far down the branch. There are eight or nine of these lamellse 

 on the exterior in half an inch of breadth. 



Fungus marinus foliolis erectis serratis, 

 &c., Seba, iii. 200, tab. 109, fig. 6. A 

 fastigiate clump eight inches high, and 

 nearly as broad above, with the stem an 

 inch or less in diameter below. The fas- 

 tigiate form may not be characteristic, as 

 it probably grows in hemispherical clumps, 

 like other species of the genus. 



Madrepora angulosa, Esper, Pflanz. i. 92, 

 tab. 7. Smaller but otherwise like Seba's. 

 From " Curassao," Caribbean Sea. The 

 calicles are strongly lamello-striate and 

 serrate for two to three inches from the 

 summit. 



, Pallas, Zooph. No. 174. " M. dicho- 



toma fastigiata, stellis terminalibus, tur- 

 binato-angulosis, lamellis dentatis." 



Lilhodendron angulosum, Schw. Handb. 

 416. 



Caryophyllia angulosa, in part, Lamarck, 

 2ded. ii. 355, No. 13. 



, Lamouroux, Encyc., 173. 



, Ehrenberg, G. Iviii. sp. 3. 



Mussa angulosa, Oken, Zool., 73. 



Iiobophyllia angulosa, Blainv. Man. 355. 



The Lobophyttia angulosa, of Blainville, 

 includes also one or two species of Eu- 

 phyllia. The species so called by Quoy 

 and Gaymard, Voyage de 1'Astrolabe, iv. 

 193, pi. 15, rigs. 1,2, appears to be a 

 Manicina. The Caryophyllia angulosa 

 of the same authors, Voyage de 1'Uranie, 

 pi. 96, fig. 9, may be the Euphyllia 

 tumida. 



4. MUSSA CORYMBOSA. (Forskol.) Dana. 



M. fastigiata, pattide fuscescens ; discis scepius suborbiculatis, totis aurets, 

 medio glabris, margine tumido, papilloso, papillis bursiformibus, vix 

 lineam altis; tentaculis parvulis. Corallum, caliculis incequalibus, 

 1-1 i" latis, subturbinatis, scepe compressis et angulosis ; lamellis 

 valde dentatis, margine caliculi non revoluto, subacuto. 



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