68 
XXXV (partly). The branches are always directed towards all sides of the colony, but some¬ 
times a principal plane can be discerned, but never for all the branches; it is also possible 
that one colony shows a principal plane (Via, Vila), while other colonies with the same charac¬ 
teristics are branched in all directions (VI j 3 , VII.fi); one colony (XIX) has its secondary branches 
always in a plane, but not the primary branches. 
To this review can be added the following characteristics, which are occasionally men¬ 
tioned. — The colour is insufficiently known, through the preservation in spirits. — This may 
also be the cause of the deviations in polypar shape, as they appear in XIII a and |3. — In 
some cases the elongation of the polyp and the oral cone in a transversal direction is used as 
a generic distinctive (e. g. in XXXI and XXXVII), but this elongation is signalled more than 
once, especially on younger and thinner branchlets, while it is entirely absent on the older parts. 
Far from accepting it as a generic difference I hold it to be unavailable even as a specific 
difference and in my opinion it is only a special adaptation to the available room on the axis, 
and in this manner entirely dependent on the very variable diameter of the axis. In various 
other Antipatharia I observed the same phenomenon. 
Sometimes fusions of neighbouring branches occur, but since these fusions are far from 
frequent and even may be limited to one single fusion on a colony, in my opinion these fusions 
may be used only as a secondary specific characteristic, and even then only if they appear 
frequently and typically. 
In view of the conclusions, deduced from the tabel, the species, reviewed in it, may 
be for the present joined with the Siboga-specimens in one single species Euantipathes dichotoina 
(Pall.) emend, n. n., the emendated diagnosis of which is as follows : 
Colony : slender, sometimes with increasing diameter, branched in 
all directions or principally in the same plane, at angles of 30°—90° ; 
mutual distance between the branches: a few mm. — 3 cm.; length of the 
branches: 1 — many cm.; branches curved or sinuous; sometimes fusions 
in the older parts. 
Spines : triangular, vertical or sub-vertical on the axis, smooth, 
distal side usually steeper than the proximal side. Length 60 p. (30 u .— 
200 p.) ; mutual distance 350 p. (210 p, — 1 000 p.) ; 4 — 5 quincunxially alter¬ 
nating longitudinal rows; more rows on the older parts. 
Polyps: in one series, usually on different sides of the colony; often 
predominating proximal lateral tentacles; oral cone usually large and 
swollen; mouth small and round or somewhat sagittally or transversally 
elongated; in ter polypar distance in most cases 1.5 — 2 mm. 
Former habitat. 
( 'Antipath.es dicliotoma Pall.) Brook, Naples, 110 fm. (1 fragment); Marsigli, Marseille, 
140 fm. (1 colony); Roule, Bay of Gascony, 400 — 1410 M. 
( Antipathies arborea Dana) Dana, Sandalwood Bay, Fiji, 10 fm. (1 colony). 
(Antipathies foeniculacea Pall.) Pallas, Mediterranean; Rumphius, Lamarck, Indie; Studer, 
Dirk Hartog, W. Australia, 45—50 fm., Mermaid Channel, 50 fm. (some ? colonies). 
