38 PEOCEEDINGS OP THE NATIONAL MUSEUM vol.81 



Ijima in his Contribution III, page 42, speaks of the spherical larva 

 of Leucopsacus orthodiom, and in his Contribution IV, page 46, of 

 the spindle-shaped ones of VitroUula fertilis. The present larvae 

 are also spindle shaped, and I consider them larvae in an early stage 

 of development. 



Our spindle-shaped larvae measure 100/x, to 105/a in breadth and 

 220^ to 250/x in height. It was not possible to give a detailed account 

 of them, as my preparations were not sectioned and the specimens 

 were poorly preserved. The macrosclere, which first makes its ap- 

 pearance in the larva, is a minute and delicate-rayed oxystauractin. 

 The spicule is situated on the surface, with the plane of the four rays 

 disposed paratangentially to the surface of the larva. The longer 

 distal and proximal rays cross or join each other at both ends of 

 the other ox5^stauractins on both peripheral ends of the larva. 

 Their smooth, greatly tapering longer proximal and distal rays with 

 the sharply pointed or somewhat inflated ends may be 95/x to 100/x 

 long, and the shorter paratangential rays measure 60/a in length. 

 The epithelial covering is entirely concealed from view. 



FARREA SOLLASII YAKUSHIMENSIS, new subspecies 



Specimen A (holotype, U.S.N.M. No. 22036) is much branched, 

 forming composite masses, and measures 25 mm in height and 50 mm 

 in breadth. It exhibits a somewhat narrow-meshed tubular frame- 

 work, which was fixed to a substratum by means of a few compact 

 pedicles. In inferior regions of the sponge body in parts near the 

 pedicles, most of the soft parts are macerated, and only the dictyonal 

 frameworks are complete. The constituent tubes are 2 mm to 3 mm 

 in breadth and open out by means of short projecting terminal 

 branches. In external appearance this specimen seems to be allied 

 to the members of Eurete, 



Table 12. — Record of specimens of Farrea soUasii yakushimensis 



Specimen B is much smaller and poorly preserved ; nearly all the 

 soft parts are macerated. The body is attached to a stone by a short 

 pedicle. The height of the specimen is 25'Inm, and the broadest part, 

 which is at the distal end of the sponge body, measures 23 mm. 



Specimen C, preserved in alcohol, is attached to a stone by the 

 broad base measuring 8 mm. Although the greater part of it is so 

 completely macerated that only the dictyonal net is left, the soft 



