i5 
to foreign bodies by a dilated base. Till now the free base is only found by two species of 
Schizopathes , both of which I unite into one species, while the third species ( Schiz. conferta 
Brook) misses the base and so the generic character also. Further the polyps of Schizopathes 
are more crowded than by Bathypathes , although nearer the base of the Schizopathes- species 
the interpolypar distance increases. Schizopathes has a sagittally elongated stomodaeum, while 
the oral cone is a prominent cylinder; by Bathypathes “an elongation of the stomodaeum in 
the sagittal axis is never marked; usually its greatest length corresponds to the transverse axis 
of the gastrozoid” (l). Moreover: “the mouth opens on the general surface of the peristome, or 
is situated on the apex of a short conical or cylindrical projection of it”. By Schizopathes the 
polyps are so crowded that there is no isolation of the zooids into triplets, the interpolypar 
distance is just as great as the distance between the pairs of lateral and sagittal tentacles; 
by Bathypathes the polyps are at a greater distance apart, which occurs by Schizopathes only 
in the lower part of the colony, where the polyps are “separated from one another by a con¬ 
siderable interval as in Bathypathes ” (l), and where the zooids are degenerate. As a farther 
generic characteristic is mentioned that the ova of Bathypathes are very large and each in¬ 
closed in a special mesogloeal chamber; by Schizopathes nothing of this is mentioned, even in 
the anatomical part, but by Taxipathes Brook mentions large ova without special mesogloeal 
cyst, at which he says that in the structure of theovaries Taxipathes differs from Schizopathes. — 
On examination of all these generic differences, it appears first that Brook himself already says 
that the polyps in the lower parts of Schizopathes are separated from one another by a con¬ 
siderable interval, which fact lessens the difference between crowded (Schiz .) and not-crowded 
polyps (Bath.) • this is made more striking by the Siboga-material of Schizopathes (Schiz. affims 
Br. by me united to Schiz. crassa Br.) whereby the polyps are so far apart that with the 
naked eye it is clearly visible which pairs of tentacles belong together as one polyp (Brook’s 
“triplets of zooids”). — The high oral cone, typical for Schizopathes as Brook’s opinion is, 
and wholly or nearly wholly lacking by Bathypathes I also found by the specimen of Eubathypathes 
patula Br. described by me, crateriform and as high, if not higher, than by Schizopathes. By 
other Antipatharia moreover it is to be remarked that the height of the oral cone often depends 
on a high degree on the state of preservation, or at least is very variable within the boun¬ 
daries of one and the same species. — The difference in stomodaeum, lessened by Brook’s 
own description of its condition by Bathypathes , is made less striking since the mouth, usually 
transversally elongated by Bathypathes and not described by Brook for Schizopathes , is by the 
Siboga-specimen of Schizopathes either round or also somewhat transversally elongated. — Ihe 
ova, not clearly described for Schizopathes , are very large by the specimen I examined, larger 
than by Bathypathes , and each ovum has its .special mesogloeal chamber, just as Brook found 
by Bathypathes. — By Schizopathes Brook gives as a generic characteristic its having ten 
mesenteries in the “gastrozoid” and only one in each of the “gonozoids” but this is not a 
generic characteristic for on another page he gives this point rightly as a distinctive of the 
entire subfamily of Schizopathinae Br. so that Bathypathes and Taxipathes share alike in this 
characteristic. — Apart from the question whether all this points are of generic value, the dif¬ 
ference between Bathypathes and Schizopathes is reduced to the fixing of the colony-base and 
