471 
covering the whole sponge, caused by the countless styli projecting 
almost perpendicularly from the surface. Oscula and ostia could 
not be made out. Colour dark, consistence rather hard, somewhat 
elastic. 
The skeleton consists of a stout reticulation of spongin-fibres, 
cored by the tylota, which are in most places arranged uniserially, 
only rarely biserially; the sides of the meshes are generally only 
of ca. one spicule’s length, the meshes themselves are often tri- 
angular or quadratic; the fibres are up to 130 fi thick, generally 
only about ca. 60 u ; primary and secondary fibres are not disting- 
uishable. The nodes of the meshes are often rather thick, and 
from the dermally placed nodes styli are projecting perpendicularly 
outwards (fig. 24 a), only their bases are imbedded in spongin; as 
before said these spicules are lending the sponge-surface a velvety 
appearance. Everywhere in the soft tissues (or rather the remainder 
thereof) are found numerous toxa and foreign spicules. 
Spicules, a. Megascleres. 1. Tylota (fig. 2b b), very stout, straight 
or a little curved, with short thick heads; about 270 fi long and up 
to 35 /f thick. 2. Styli (fig. 24 c), a little curved, sometimes a little 
subtylostylote, generally thickest at the base, from here evenly 
tapering to the sharp points; they are always longer than the 
tylota, reaching up to 800 /lv, by a thickness of up to 35 p. 
b. Microscleres. Toxa (Fig. 24 d), slightly and beautifully curved, 
about 75 p in length, 2 p in thickness. 
Tedanione connectens nov. spec. 
(Fig. 25a—d.) 
Little Barrier Islands. 30 fathoms. 29/XII.1914. 
Three fragments. Sponge irregularly enerusting, giving off di- 
gitiform hollow processes; the elder parts of the sponge filled up 
with sand; largest specimen 27 mm in greatest diameter; the pro¬ 
cesses Bre generally broader at the base, ca. 2—3 mm, tapering 
to the apex, which is ca. 1 mm broad, length up to ca. 17 mm. 
Colour whitish, surface smooth, consistence soft. Oscula and other 
orifices could not be made out. 
Skeleton composed of loose strands and wisps of tylota, in the 
interior intermingled with a few styli, where the spicules also are 
lying more close together; the main direction of the spicula-wisps 
