534 Vet'rill, Notes on Hadiata. 



This genus is like a gigantic Astrangia, except that the corallites 

 are, apparently, always quite separate, and the principal septa are 

 usually more nearly entire at the summit. Pliyllangia has a smaller 

 columella, which is not papillose, and the septa are fewer, narrow, and 

 very exsert, with nearly entire edges, while the calicles are narrow 

 and deep. 



The following and U. Stokesiana Edw. and Hainie, from the Phil- 

 ippines, are the only species known. 



Ulangia Bradleyi Verriii. 



Ulangia Bra'/leyiYeTrHl, Proceedings Boston Soc. of Natural History, x, p. 333, 1866. 

 Plate IX, figure 10. 



Corallites low, broad, subcircular or elliptical, with the base as 

 broad as the margin, generally quite isolated, sometimes two or more 

 are placed 1"5 to 3 inches apart, which were, possibly, once connected 

 by a thin, or entirely soft, basal expansion, that has since disappeared. 

 Calicle generally quite shallow, sometimes moderately deep and cup- 

 shaped. Columella well developed, but not large, usually occupying 

 less than a quarter of the breadth of the calicle, its surface crowdedly 

 covered with small prominent, spinulose papillje, which blend insensi- 

 bly with the similar, rough, papilliform teeth, arising from the inner 

 edges of the septa ; the sui-face of the columella is usually concave. 

 Septa in five complete cycles ; those of the fifth are mostly quite nar- 

 row, thin, lacerately toothed ; all others have the outer part suddenly 

 rising and more or less exsert, according to their cycles, the inner 

 portion thin, gi'adually sloping inward and sometimes, in large speci- 

 mens, almost horizontal, most of them extending inward to the 

 columella, but many of those of the fourth cycle joining those of the 

 third before reaching the columella ; all have the sides covered with 

 small, sharp, spine-like granules, and the inner portion with the edge 

 divided into prominent, rough, papilliform teeth ; the primaries are a 

 little thicker than the rest, and broader throughout, the outer portion 

 rising almost perpendicularly from the inner, broadly rounded or 

 subtruncate at summit, considerably exsert, the edge subentire or 

 minutely denticulate, rarely deeply incised ; the secondaries are 

 similar to the primaries, but a little thinner and narrower, with the 

 outer portion somewhat less exsert and the edge more frequently 

 toothed ; the tertiaries are considerably narrower than the secondaries, 

 with the outer portion narrow and less distinct from the inner, only 

 slightly exsert, and deeply divided into sharp, or rough, lacerate and 

 blunt teeth ; those of the fourth cycle are similar to those of the 



