﻿April, 1857.] 



ELLIOTT SOCIETY. 



191 



nodes of the marginal cord, making thirty-six in all without ten- 

 tacula, forty-eight if the tentacular nodes be included. The sex- 

 ual organs either double on each tube and placed one on the pro- 

 boscidian, the other on the disk portion of the tube, or single 

 and then located in the disk. 



* * Tentacular bulbs without lateral cirrhi — lashes long and flexible. 



EPENTHESIS, nov. gen. 



General form much like that of Eucheilota, but the disk is 

 probably rather thinner above, and a vertical section of it would 

 give a more truly crescentic outline than in that genus. There is 

 no notable difference in the form of the digestive trunk, except 

 that in my specimen it possessed five labial appendages instead 

 of four, the typical number in Eucheilota. The radiate tubes are 

 four in number, and the sexual organs are four rather round thick 

 glands, bulging and hanging downwards in the cavity of the bell 

 from its inner surface, and situate each on a radiate tube about 

 one-fourth its length from the marginal canal. The tentacula in 

 the present species appear to be the same in number as in Eu- 

 cheilota, sixteen, and this is perhaps the typical number. They 

 want the small lateral tentacula, but otherwise resemble those of 

 Eucheilota. The marginal capsules are small, and contain one 

 or two corpuscles each. The ordinary numerical formula appears 

 to be, one between every two tentacula, but sometimes by a sort of 

 deformity, there are found two between two tentacula. 



Larva unknown. 



Remark. — This genus differs from Eucope thaumantioides in 

 the form and position of its sexual organs and in the number of 

 its marginal capsules Probably several of the species de- 

 scribed by Forbes are referable to it, but I am unwilling to risk a 

 conjecture based upon his figures merely. 



Distribution. — Charleston Harbor, British Seas? 



EPENTHESIS FOLLEATA, nov. spec. 



The general form of the disk was that of a spherical segment 

 somewhat greater than a hemisphere. Its cavity is deep and the 

 bell-wall diminishes very gradually from the summit towards the 

 tentacular margin. The possession of five labial tentacular im- 

 parted a peculiar aspect to the digestive trunk. The sexual glands 



