overlap the bare band, shows elongated cavities leading from tin; polyp openings. 

 into the coenenchyma proper. It may also be, seen that minute canals doss the 

 band of thin coenenchyma from side to side. 



The spicules agree closely with those of the other specimen. The following 

 measurements were taken of length and breadth in millimetres : 



(a) Coenenchyma: (1) Long spindles, with few blunt spines, 0'5x0'04; 



0-4x0-03; 0-3x0-03. 



(2) Shorter warty spindles, 0-25x0-03; 0'2x0'02. 



(3) Rods with warty ends and warts in two whorls, 



0-14x0-06; 0-12x0-06. 



Some of these approach double clubs, while others are 

 almost stellate. 



(4) A few crosses also occur, 0"2 x 0'2 ; 0"2 x O'l. 



(l>) Autozooids : (1) Long spindles, as in ccenenchyma, but with fewer spines, 



0-55x0-03; 0'45x0'03. 



(2) Clubs with bare shaft and warty end, 0'15 in length, 



shaft 0'02 broad, end 0'03 broad; O'J xO'015xO-02. 



(3) Short warty rods, as in coenenchyma, O'lxO'08; 



O-lxO'06. 



(4) A few crosses, 0'2xO'l. 



Locality : Station 254 ; 11 16' 30" N., 92 58' E. ; 669 fathoms. 



Sarcophytum agaricoides, u. sp. 1 Plate I. fig. 3. 



The general appearance of the colony may be described as mushroom-shaped. 

 A distinct cylindrical stalk expands into a large hemispherical lobe or pileus. The 

 colour is a uniform purplish-red except on the retractile portions of the autozooids. 

 which are yellowish-white. The pileus is approximately circular in outline, 

 markedly convex on its upper surface and slightly concave on its lower. The 

 total height of the colony is 5 "5 cms. The pileus has a maximum breadth of 3 "2 

 cms. and a length of 1 "2 cm. 



The lower surface of the pileus is covered with an epidermis, continu- 

 ous with that of the stalk, and totally devoid of polyps. The upper surface 

 bears numerous retractile autozooids, uniformly distributed over the surface. 

 In the inter-spaces a great number of small whitish spots mark the positions 

 of the siphonozooids. The stalk is cylindrical, and has a maximum length of 

 3"3 cms. 



A longitudinal section through the colony shows a series of tubular canals, 

 running from the apertures of the autozooids, bounded by abundant connective 



1 This beautiful species was described by one of my students, Mr. James Hector, as an exercise 

 for the B.Sc. degree. J. A. T. 



