159 
without oxea besides the styli, and as the specimen in hånd is 
incrusting and therefore cannot have well developed skeleton-fibres, 
it seems to me that I am justified in referring the sponge to the 
genus Thrinacophora, in spite of the lacking of the oxea. 
Family Suberitidae. 
Genus Suberites Nardo. 
Subevites afjinis nov. sp. 
Carnley Harbour. 45 f. Sandy clay. 6/XII.I914. 
Several specimens. Pear- or club-shaped. 
70 mm high, ca. 10 mm thick; attached by 
rapidly increasing in thickness, and having at- 
tained its greatest thickness it grows cylindric- 
ally upwards; top roundish. Osculum at the 
top, ca. 1 mm in diameter. Ostia? Texture 
firm, only a little elastic; colour pale grayish- 
yellow. Surface even, glabrous. 
Skeleton in the interior of the sponge very 
irregular; spicules for the main part lying pell- 
mell; only round the canals there is a tend- 
ency towards a vague regular arrangement; 
but the spicules are forming distinet fibres 
directed at almost right angles towards the sur¬ 
face; the fibres are so close that they almost 
touch one another; the most external spicules 
are diverging a little and pierce the dermal- 
membrane, so that the surface of the sponge 
is finely and evenly hispid; and these spicules 
are somewhat smaller than those in the interior 
of the sponge (although big ones are found 
between them). The outer layer, containing 
veritable fibres, is only ca. 1 mm thick. 
Spicules: (fig. 32) ty losty li. Many devel- 
opmental-forms; the spicules are as a rule 
slightly curved, most often about the first third; 
'but especially the longer spicules may some- 
times have several curvings; but also many 
Biggest specimen ca. 
a narrow base, then 
Fig. 32. Suberites affinis, 
nov. sp. Tyloslyli. 
