22 
long or epitliecate Avail of each corallite, particularly as the zooid so produced 
forms the commencement of a “ nouveau ruhan,” and invariably marks the 
point of deflection of one or more chains, to assist in enclosing a fenestrule. 
That corallites occur at the fenestrule angles, differing in outline from the 
other two kinds of tubes, seems to he just the point missed by Podta. That 
these exist needs no further demonstration; that their function when present 
was to produce neAV chains of corallites, is equally apparent. It seems to 
me, therefore, that in llalysites there is evidence of (a) gemmation from the 
walls of either autopores or mesopores ; and (b) budding from a set of 
specially constituted zooids usually occupying that position in the colony 
forming the angles of the fenestrules. The existence of incomplete chains 
protruding into already formed fenestrules, and commencing their course 
from a gonopore, either at one of the re-entering angles, or an obtuse angle 
on one of the sides of a fenestrule, hears out my view of the reproductive 
nature of the gonopores. My contention is also supported by figures of the 
very young state of forms referred to H. catenularius, Linn., and H. eschciroides, 
Lamk., by Mr. C. Wiman. 1 
14. Species. — I have subdivided the Australian llalysites into nine 
species. As already explained, I find it impossible to refer these to old-world 
or American forms ; hut I have endeavoured to indicate, wherever possible, 
an alliance with the latter. The eight species arc — 
llalysites lithostrotonoides, sp. nov. 
,, or thopter oides, ,, 
,, Sussmilchi, „ 
,, cratus, „ 
,, australis, Eth., fil. 
,, pycnoblastoides, sp. nov. 
,, peristephesicus , ,, 
,, gamboolicus , ,, 
,, chillagoensis , „ 
1 Wiman, Bull. Geol. Inst. Univ. Upsala, V, Pt. 2, No. 10, 1902, pi. vii, f. 1 and 2, 6-8. 
