542 Verrill, Notes on Radiata. 



Fnngia elegans VerriU. 



Fuivjia elegans Verrill, Amer. Journal of Science, 2d ser. xlix, p. 100, Jan. 1870. 



Plate X, figures 1 and 2. 

 Corallum, when young, regular and round, often becoming slightly 

 oval ; when adult, usually more or less angular, the edge plicated, 

 forming six to twelve lobes. The upper surface becomes very convex 

 in mature specimens and the lower surface deeply concave and 

 covered with very numerous, fine, subequal, elevated costiB, which are 

 finely dentate on the outer half, becoming nearly entire and very faint 

 toward the center, which usually shows the scar, where it was at- 

 tached when young. Septa thick and rather crowded, very unequal, 

 the six primaries very prominent and thick at the inner end; those of 

 succeeding cycles successively shorter and less elevated. Edges of 

 septa unevenly crenulate, or finely dentate. Columella slightly de- 

 veloped, loosely spongy ; median fosette small, narrow, elongated; the 

 two septa in the direction of its longer diameter much less elevated 

 and thinner than the rest. Trabiculae stout, cons^^icuous, often coales- 

 cing into continuous transverse plates. 



The smallest unattached specimens are '90 of an inch broad by -35 

 high; ordinary specimens are about 190 broad by I'lO high; some 

 of the largest 2-25 by 1-15 ; 2-35 by 1-20 ; 2-40 by 1-25 ; 2-55 by I'll. 

 Near La Paz, — J. Pedersen. 



Of this small but very interesting species Capt. Pedersen has sent 

 more than one hundred specimens, all of which came from a single 

 locality. 



Family, Agaricid^ Verrill. 



Fungidce- (pars) Dana, Zoophytes U. S. Expl. Exp., p. 283, 1846. 



LophoseriruB Edw. and Haime, Comptes-rendus de I'Acad. des Sci., xxix, p. Tl, 1849. 



Lophoserince (pars) Edw. and Haime, Ann. des Sci. nat, 3^ ser., xv, p. 101, 1851; 



Coralliaires, iii. p. 35, 1860. 

 L'phoseridce Verrill, Proc. Essex lust., iv, p. 146, 1865. 



Coralla simple or compound. Wall, and basal disk of compound 

 species, compact, imperforate, costate. Costae generally nearly equal, 

 seldom echiniilate or dentate. Septa compact, usually few, low, pro- 

 longed outwardly, extending between adjacent cells. In compound 

 species the coral is generally encrusting, or thin and foliaceous, the 

 polyps covering one or both sides of the foli:ie, and budding chiefly 

 around the margins, from the prolonged septal systems. The cells are 

 not separated by definite walls. In some genera, however, like JPavo- 

 nix and SiderastrcB'i,, the coral forms more or less thickened plates, or 

 even globular masses, while the interseptal chambers have transverse 

 dissepiments, as well as trabiculae. 



