ASTRANGIA. 79 



ASTRANGIACE^ M.-Edw. & H. 



AUrnngina Verrill. 



PHYLLANGIA M.-Edw. & II. 

 Phyllangia americana M.-Edw. & II. 



Sijndepas Goiil/lii Lyman. 

 Slellanr/ia replans? Ducn. & Mien. 



The typical and only species of the genus Syndepas Lyman appears 

 to me identical with Phyllangia americana M.-Edw. & H., with which 

 Mr. Lyman was probably not acquainted at the time he wrote. The 

 Museum of Comparative Zoology has numerous specimens from the 

 Florida Reef and from Camana, Venezuela; it appears to be quite com- 

 mon in both localities. 



The paliform lobe noticed in the genus by Professor Verrill is some- 

 times well developed in this species, at other times quite absent. 



ASTRANGIA M.-Edw. & H. 

 Astrangia solitaria Veurill. 



A.flrangia solilaria Veurill. Bull. Mus. Comp. Zool., No. 3. 



Cari/ophi/llia solihii-ia Lksueur. Joiir. Tliil. Ac. Nat Sl\ I., p. 180, PI. 8, fig. 11, 1817; and 



Mem. (Ill Mus. d'Hist. Nat., t. VI. p. 273, PI. 15, fig. 1. 

 Aslraiif/ia plii/Uaii(/ii)t(les ? Ducii. & Micii. 



This species has never been fully described ; it has been identified 

 by Verrill with Lesueur's species, but the characters given by the latter 

 author are so scanty that there can be no certitude of the identity, but 

 a strong probability. 



Corallites cylindrical, in loose incrusting clusters, connected by thin 

 stolons on which the costal strine are distinctly continued. Costaj flat 

 and broad, finely granulated. The base is generally covered with nul- 

 lipores simulating an epitheca, and covering at length the stolons. 

 Calicle circular, very deep when full grown, shallow in the young. 

 Septa thick, crowded, in four cycles ; the fourth generally wanting in 

 two or three half-systems. The primaries are considerably thicker than 

 the others, and more exsert ; all the septa are coarsely and bluntly 

 denticulated. Pali well developed, thick, and denticulated. Those 

 of the third united to those of the second order. Columella papillose, 



