168 ZOOPHYTES. 



Plate 6, figure 4, part of a corallum, natural size ; 4 a, vertical sec- 

 tion, showing the narrow bottom ; 4 b, transverse section, showing the 

 cellular texture of the interior. 



East Indies. Exp. Exp. 



The branches of this species are often broad sinuous plates, half to 

 three-fourths of an inch thick; and again there are occasionally others, 

 which are cylindrical, and belong to a single polyp. The last have 

 often much resemblance to a single calicle in the E. rugosa, but are 

 less strongly striated. The lamellae are crowded and so fill the cell 

 that its bottom is seldom apparent. 



Caryophyttia angulosa, in part, Lamarck, 2d ed. ii. 355, No. 13. 



Madrepora fastigiata, Esper, i. 95, tab. viii. A. This figure may have been made 

 from a specimen of this species; yet is much too small, and the striae are too decided. It is 

 possibly a distinct species. He gives the Caribbean Sea as the probable locality. The 

 calicles are one-third to half an inch thick, and half to two and a half wide, with the 

 exterior striate. See E. gracilis. 



13. EUPHYLLIA SINUOSA. (Dana.) 



E. maxima, hemispherica ; discis compositis, Kneatis, et elongate mean- 

 drinis. Corallum meandrinse affim, sed cettis sinuosis longioribus, 

 " latis, et lamellis paucis, scepius fa" remotis, integris, non exsertis. 



Very large, hemispherical ; disks compound, linear, and long mean- 

 dering. Corallum similar to that of the meandrina, but the sinuous 

 cells longer, J an inch broad, and the lamellae few and mostly fa of 

 an inch distant, entire, not exsert. 



The few and remote lamellae, and the very open cellular texture, 

 distinguish this species readily from the preceding, with which it 

 agrees in general habit. The intervals between the calicles, or the 

 lobes of the same, are often an inch broad, A single meandering 

 trench, with all its sinuous lobes, is sometimes two feet long. The 

 specimen affording the description belongs to the collections of the 

 Academy of Natural Sciences at Philadelphia, arid there is another 

 in the collections of the Boston Natural History Society. The locality 

 is not known ; it is probably from the East Indies. 



