thes\ cylindrica Br. has branched pinnules, but via Parantipathes tristicha sp. n., which has 
three rows of pinnules, one of which is branched regularly while both the other rows are un¬ 
branched, there is a connection between the Parantipathes -species with unbranched pinnules 
and [Ant.] cylindrica , the mode of branching of which has become irregular. Also the wormtubes 
in the colonies of [Ant.] cylindrica are in accordance with those of the P arantipath es-z olonies. 
Polyps are absent, which makes it difficult to take a decision but for the time being there is 
no conceivable reason to keep apart this [Ant.]-specles, so that we may call it Parantipathes 
cylindrica. — In the same manner [Ant.] spinescens Gray can become Par. spinescens , at the 
same time as its var. minor Brook; [Ant.] squamosa Koch becomes Par. squamosa and Anti- 
pathes spinosa (Carter): Parantipathes spinosa (Carter). — This genus Parantipathes can be 
considered as a connection between the Aptuchaephora (especially the Autakresales) on the one 
side and the Ptuchaephora on the other side, for Parantipathes tristicha sp. n. is in many 
points very like Bathypathes- species, especially Eubath. quadribrachiata sp. n. The two rows 
of unbranched branches, not wholly in one plane, are present in both species, while the two 
rows of short branchlets, which are to be found in Bath, quadribrachiata sp. n. may be compared 
with the single row of branched branches of Parantipathes tristicha sp. n., which row has the 
double number of branches compared with the rows of unbranched branches, and in this manner 
gives the impression of resulting out of the melting together of two rows. 
The subdivision of the Antipatharia I conceive as follows: 
Family Antipathidae Verill (em. Brook). 
i st sub-family Homoeotaeniales. Only primary mesenteries. 
(= Hexamerota Schultze). 
Sibopathes n. g. 
Cladopathes (Br.) em. 
(= Clad. Br. + Hexapathes K.). 
2 nd sub-family FI e t e r o t ae n i a 1 es. Primary and secondary mesenteries. 
(= Dekamerota Sch. - 4 - Dodekamerota Sch.). 
i st tribe Ptuchaephora with peristomal folds. 
Bathypathes (Br.) em. 
Schizopathes Br. 
Eubathypathes (Br). n. n. 
Taxipathes Br. 
2 nd tribe Aptuchaephora without peristomal folds. 
I st subtribe Crustosae Sch. The colonies form a crust on foreign objects. 
Savagliopsis Sch. 
(Tropidopathes Silb.). 
2 nd subtribe Autakresales with autonomous colonies. 
(= Ramosae Br. -j- Indivisae Br.). 
