476 
bending, from here tapering to the sharp points; some styli, how- 
ever, are of even thickness for the greater part of the spicule, only 
the apex abruptly and sharply set off. They vary in length from ca. 
250—400 jLi by a thickness up to 22 fv. 
Hymeniacidon racemosa nov. spec. 
(Fig. 29 a—b). 
Three Kings. 65 fathoms. Hard bottom. 5/1.1915. 
Several specimens, apparently fragments. The sponge seems to 
form branching and coalescing, more or less cylindrical stems; the 
Fig. 29. Hymeniacidon racemosa 
nov. spec. a. Styli. b. Subtylostyli. 
Fig. 30. Hymeniacidon haurakii 
nov. spec. Styli. 
largest specimens attain a length of 18 mm, a thickness of 3 mm. 
The surface is hispid; the dermal-membrane thin, covers num.erous 
small subdermal cavities; it is pierced by numerous ostia, which 
are just seen with the pocket lens. Oscula could not be made out. 
Consistence soft, a little elastic; colour yellowish. 
The skeleton consists of a loose feltwork of spicules often for- 
ming rather distinet fibres, which do not, however, attain a great 
length before they dissolve, then being replaced by others; these 
short fibres are forming a very irregular reticulation, being con- 
