POLYPS AND CORALS. 29 



Color of living polyp bright vermilion. Tentacles twen- 

 ty, short and blunt, those of the first cycle longest. Mouth 

 oblong. 



Simon's Bay, Cape of Good Hope, in 15 to 20 fathoms, 

 rocky bottom. Dr.-Wm. Stimpson. 



EuPSAMMiA Stimpsoniana Verrill, these Proceedings, 

 Vol. IV, page 150, 1865. 



Plate 2, figures 3, 3? 



Coral elongated, slightly compressed, obconical, the base 

 in the younger specimen having been adherent, in the larger 

 one smoothly rounded. Walls closely costate to the base, 

 the costas slightly wavy, minutely scabrous. Cup in the 

 larger specimen regularly oval, narrow and deep. Columella 

 well developed, salient in the form of a flattened tubercle, 

 sepi-a in four cycles with a few rudimentary ones of the fifth, 

 those of the first two cycles broad, evenly arched to the sum- 

 mit, a little exsert, the edges entire. In the younger speci- 

 men the cell is nearly circular and the septa of the fourth 

 cycle are rudimentary. 



Length of larger specimen 1,25 inch; cell .62 by .48; 

 depth .36 ; young, length .75 ; diameter of cell .27. 



North China Sea, 25 fathoms, shelly sand. Dr. Wm. 

 Stimpson. 



Dendrophyllia gracilis Edw. and Haime. 



Plate 1, figure 2 ; Plate 2, figures 2, 2^. 



A fine series of this elegant species is in the collection. 

 The columella is usually more prominent than indicated by 

 Edwards and Haime, and the manner of budding is quite 

 variable. The first and second cycles of tentacles are larg- 

 er than the rest, mouth oval with weU marked lateral folds. 



Color bright salmon, tentacles almost white, mouth white, 

 disk radiated with salmon color. 



Near Hong Kong, in 25 fathoms, gravel, and in several 

 other localities at various depths in muddy gravel. Dr. 

 Wm. Stimpson. 



