TRIBE 1 1. CARYOPIIYLLACEA. 425 



4. PALYTHOA FULIGINOSA. (H. 4- Ehrenberg.} Dana. 



P. flavo-fusca, poly pis basi tantum coadunatis; contractis 2$'" latis, 

 altioribus; expands 1" longis, davatis, discis margins 32-dentatis, 

 tentaculis davatis, obtusis, fusco- et albo-fasciatis, fere 64 in serie 

 duplici, internet, validiore. 



Brownish-yellow, polyps united only at base, when contracted 2^ 

 lines broad, and quite prominent; when expanded an inch high, 

 clavate ; disks with 32 teeth to the margin ; tentacles clavate, ob- 

 tuse, banded with brown and white, about 64 in 2 series, the inner 

 larger. 



o 



The Red Sea. Ehrenberg. 



Mammillifera ftdiginosa, Ehrenberg, G. xii., fig. 3. Ehrenberg suggests that the 

 Palytfioa, Peril, of Audouin, may be the above species. 



II. Palythoce breviter mammillosce polypis latere coadunatis, sed apice Kberis. 



5. PALYTHOA MAMMILLOSA. (Ellis.} Lamouroux. 



P. polypis latere coadunatis, contractis apice prominentibus, $-1" allis, 

 fere 3'" latis. 



Polyps laterally united, but with quite prominent summits when con- 

 tracted, to 1 inch high and nearly 3 lines broad. 



Coasts of Jamaica. 



AlcytHiium mammillosum, Ellis and So- PaJythoa stellate, Lamour., Exp., 70, tab. 



lander, 179, No. 5, tab. 1, figs. 4, 5. 1, figs. 4, 5. 



, Linn., Gmelin, 3815, No. 16. Tethya mammiUosa, Oken's Zool., i. 82. 



, Lamk., ii. 601, No. 9. Cavolinia mammiUosa, Schweig., H. 411. 



Sloann's Jamaica, 1, tab. 21, figs. 2, 3. Mammillifera mammiUosa, Blainv., Man., 

 PttJi/thoa mammiUosa, Lamour., Pol. flex., 329. 



361. , Ehrenb., G. xii., sp. 2. 



107 



