Systematik. 233 
Schwämmen überhaupt gehört. Merkwürdiger Weise erwähnt Schulze 
den Schwamm in keiner seiner Arbeiten über Hornspongien. 
72. Dehitella. „Sponge or coral dichotomously branched, expanded, 
growing on a large tuft from a broad, tortuous, creeping base, ofa dark 
brown colour, and uniform hard rigid substance. Stem hard, eylindrical, 
opaque, smooth; branches and branchlets tapering to a point, eylindrical, 
covered with tufts of projeeting borny spines on every side; those on 
the branches often placed in sharp-edged, narrow, transverse ridges; those 
of the upper branches and branchlets elose but isolated, and divergent 
from the surface at nearly right angles.“ Ebensowenig zu ermitteln wie 
das erste Genus dieser dunklen Familie 
3. Auliskia Bwk. 
Fam. Hireiniadae. 
*]. Hireinia Ndo. 
2. Sarcotragus O. 8. 
3. Stematumenia Bwk. 
Fam. Dysideidae. 
Tl. Dysidea Johnst. 
Fam. Ohalinidae. 
*]. Ohalina Grant. 
2. Isodictya Bwk. 
3. Halispongia Blainv. 
*4, Acanthella ©. 8. 
*5. Tragosia.*) „Sponge funnel-shaped or fan-shaped, branches 
anastomosing, minutely hispid. Skeleton regularly netted. The spicula 
of the primary lines of the skeleton are needle-shaped, with their apices 
direeted inwards; those of the secondary lines are fusiform.‘‘ Obwohl 
diese Diagnose nicht ausreicht, so ist es aus Allem wohl klar, für welchen 
Schwamm diese Gattung aufgestellt ist: wahrscheinlich mit Schmidt’s 
Oribrochalina identisch. 
*6. COlathria O. 8. 
#7, Azinella O. S. 
8. Astrospongia.”*) „Sponge stipitate, solitary or branched;; surface 
smooth, when moist very rough and very porous, the outer surface 
denser; when dry friable. Oscules concave, eircular, scattered, surrounded 
with six or eight small eireular pores forming a star; spieules small, 
subulate in the fibres.“ Diese Gattung ist für Axinella polypoides O. 8. 
aufgestellt. Vorläufig scheint mir aber noch kein Grund vorzuliegen, 
hierfür eine besondere Gattung zu errichten. 
19. Astrostoma.***) „Sponge solitary, branched; fibres horny, flexible. 
Oseules? eireular, scattered and concave, sunk in the surface, with eight 
or ten rays, which are covered with spieules. Spiceules small, subulate, in 
rl. 9: 513, — *#)). cp. 514.4], ve D..516, 
