REPORT OX THE HEXACTINELLIDA. 387 



The dermal piiiuli have four tolerably loug, smooth and gradually pointed basal rays, 

 and a moderately long distal which bears strongly developed upward bent spines. Santa 

 Cruz, West Indies, 180 to 248 fathoms. 



Species 2. Pheronema carpeiiteri (Wyville Thomson). 



Tiic body has a somewhat broad ellipsoidal form, slightly truncated at the upper and 

 lower pole, of which the latter bears the broad basal root-tuft as long as the body, while 

 the superior pole is surrounded by the cuff-like fringe of spicules round the osculum. 

 The radial tufts projecting in irregular distribution from the lateral surface of the body 

 form an annular zone for a finger's Ijreadth below the oscular margin. The parenchyma 

 contains long and short uncinates. The amphidiscs have hemispherical terminal umbels, 

 each with eight moderately Inroad paddle-shaped rays. The dermal pinuli have lonw, 

 smooth, pointed basal rays, and a moderately long, somewhat bushy radial. North of 

 Scotland, 530 to 1600 fathoms. 



Species 3. Pheronema graiji, Sav. Kent. 



The body has the forari of a Ijullfinch nest, with broad gastral cavity, occupying 

 aliout two-thirds of a sphere, and bearing a loug beard-like basal tuft. The prostalia 

 lateralia are almost uniformly distributed over the whole outer surface, but form 

 besides, as in Pheronema carpenteri, a thick zone measuring a finger's breadth across 

 below the oscular cuff. Otherwise the forms of spicules agree essentially with the above 

 species. Portugal. 



Species 4. Pheronema hemisphairic^un (Gray). 



Body urn-shaped, with a concave indentation (annular groove) both above and below 

 a gentle median swelling beset with tufts of spicules. The spicules of the broad 

 basal tuft project downwards as far as the body is long, and form a broad annular zone 

 round a central free portion. The parenchyma contains small oxyhexacts, in which the 

 rays bear raised lateral spines. The dermal pinuli have rough basal rays directed some- 

 what obliquely downwards, and a short slightly bushy radial. The gastral pinuli, on the 

 other hand, have a long, .slender radial ray. Zel )U, Philippines. 



Species 5. Pheronema ylohosum, n. sp. 



The body occupies three-fourths of a sphere the size of a man's fist, and bears on its 

 superior truncated extremity the wide oscular aperture of the flat gastral cavity. The 



