REPORT OS THE HOLOTHUPJOrDEA. 93 



which are represented by fine canals, which connect the minute pedicels round the e 

 of the brim with the lateral ambulacra, and consequently penetrate the brim in 

 breadth. On account of the macerated condition of the perisoma, I have not been 

 able to distinguish the anal aperture which has probably a ventral position, since 

 no traces of it are visible on the dorsal surface. The papillae of the terminal 

 part of the tentacles, about twenty in number, resemble low ridges placed so as 

 to lie from the _ towards the centre. Ajb a portion of the ventral perisoma is 

 torn off I am somewhat uncertain whether the odd ambulacrum is totally te of 



pedicels or not. The brim which surrounds the body carries on its edge a number of 

 small scarcely distinguishable processes or pedicels, which by means of fine connecting 

 canals are in communication with the ambulacral system ; those canals are very obvious 

 at both extremities of the body. Both of the dorsal processes are verv minute, 

 onlv one millim eter in length. The ventral surface seems to be aim : te of 



calcareous bodies, while the dorsal one as well as the brim contain an abundance of 

 slightly crowded four-armed, cruciform dej site PL XXXV . . the largest of which 

 have their arms about 0"3 mm. long. The stems of thetentacl- - --. ngtb nedby long, 

 rather straight and large spicula, which He transversely as well as longitudinally, the 

 tentacles themselves thus becoming incapable of contraction (PL XT TV. r _ the 



terminal part contains small spicula situated between the papilla, and like them _ : 

 from the periphery towards the centre. 



Euph n. gen. 



Body very thin and depressed, with the brim. Jly round its anterior and 



posterior extremities, rather broad. Mouth and anus ventral, at some distances from the 

 ends of the body. Tentacles eighteen. Pedicels arranged in a single row round the 

 edge of the brim and in a double one along th Id ambulacru m . The dorsal surface 

 with a few pairs of more or less minute processes, and with a large conical appendage cross- 

 ing the odd interambulacrum at a considerable distance from its 



Eupi ■ •-...-■. PL XXVI.). 



Bodv elongated, of air- st oal breadth throughout, about thri. 3 long as broad- 

 Tentacles almost equallv large ; their dilated terminal :h smaL . ~;2e procc- - 

 iallv round the edge. The lorsal surj with four pairs of small processes arrar _ . 

 in its anterior half ; the azygous large conical append g . at a distance of about 

 45 mm. from the posterior extremity of the body. Integument rough, thin, and trans- 

 it, with twe - f ealcar us d - - .tnbranehed mor e r less curved and spinose 

 spicula : and numerous crowded four-armed, cruciform bodies of various dim 

 arms of which are more or less curved and spin - 



