30 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.81 



The second specimen (B) is a fragment of large sponge body, hav- 

 ing small parts of perforated gastral wall. 



Another tolerably large fragment (C) , which I am inclined to refer 

 to the same species, has come under my observation. It was obtained 

 from Station 4976 (southwest of Shiomisaki, Kii). It is a portion 

 representing the greater part of the upper section of an individual 

 probably similarly shaped, but somewhat smaller than the second 

 specimen. The gastral cavity of the sponge has also, here and there, 

 large openings of the excurrent canals, measuring 3 mm to 7 mm in 

 diameter. 



The outer dermal surface seems much macerated and its mem- 

 brane probably has fallen off. 



In the first and second specimens the barrel-shaped mesamphidisks 

 are much more numerous than another kind that are present abun- 

 dantly in the third specimen, in which the barrel-shaped ones are 

 also sparingly represented. 



The essential difference between H. {C) owstoni and H. (C.) 

 clathratum is the presence of the barrel-shaped mesamphidisk, but 

 from the observation of the three specimens in question, such a spe- 

 cific difference is perhaps unsatisfactory. Though owstoni may not 

 prove specifically separable from clathratum^ it has a different gastral 

 aspect. I have also found much larger dermal pentactinic pinules, 

 which attain a length of 280/a and a breadth of 68/x in the distal 

 ray. 



INDETERMINABLE HYALONEMATIDS 



The collection includes several fragmentary macerated specimens 

 that are probably referable to Hyaloneina, but that can not be more 

 definitely identified on account of their incomplete state : 



Station 4911 (10 to 20 miles southwest of Koshiki Islands) ; a 

 macerated specimen with a very long, beautiful root tuft. 



Station 5069 (entrance to Enoura, Suruga Gulf) ; macerated frag- 

 ments. 



Suborder HEXASTEROPHORA F. E. Scliulze, 1899 



Tribe HEXACTINOSA Schrammen, 1910-12 



Subtribe Clavularia F. E. Schulze, 1886 



Family FARREIDAE F. E. Schulze, 1886 

 Genus FARREA Bowerbank, 1862 



FARREA KURILENSIS, new species 

 FiGUKE 4 ; Plate 3, Figure 2 



This new species is represented by a large colony (holotype, 

 U.S.N.M. No. 22034) attached to a plate of large cirripeds. It was 



