95 
4 longitudinal rows and a quincunx; on the older parts the regularity is intact but there are 
5 longitudinal rows and the spines are more aculeate (fig. 88£). On the 
base of the stem an irregular distribution occurs, but no deformations 
of the spines. 
The specimen of station 301 was first taken by me for a basal 
part of Aphanipathes reticulata sp. n. but the typical regular mode 
of branching, the shape of the spines, their dimensions, surface, number 
of longitudinal rows, the absence of fusions, etc., make it not possible, 
in the absence of further material, to unite both species. — The 
mode of branching is very like Brook’s description of Aphanipathes 
pennacea Pall, except a slight difference in the shape of the spines and their dimensions, but 
the other specimens are often the necessary transitions between both. As on former occasions, 
I have given a review of the characteristics of all specimens in a tabel, to compare them with 
Pallas’ species. This tabel demonstrates that the deviations, which may occur in some specimens, 
Fig. 88. Aphanipathes pennacea 
(Pall.) Brook, a Spines on a 
smaller branch; b spines on a 
principal branch; a,b 52 X- 
partly are present in a lesser degree in other specimens, partly are of too small a weight to 
annihilate the conspicuous likeness in the other characteristics. — I prefer to combine all described 
specimens with Pallas’ Aphanipathes pennacea , the Aphanipathes- character of which is not very 
conspicuous, and the diagnosis of which is as follows: 
Colony : Branches in two rows, alternating regularly to the right and 
to the left; in most cases nearly in the same plane except often the 
ultimate branches; inserted at angles of 45 0 —90°; straight. Mutual distance 
a few mm. No fusions. 
Spines: Distally inclined; concave distal side, convex proximal side; length 
70— 210 p.; mutual distance 165 — 230 p.. ; surface usually granulated, except 
on the base of the spine; sometimes entirely smooth or with protuberances on 
the top. Aculeate on the older parts of the colony and more upright. 
Polyps: Tentacles knob-shaped; arranged in two rows (probably not on 
the older parts, but here the polyps are degenerated). Round, low oral cone. 
Interpoly par distance 1 mm. 
Former habitat. Pallas, East Indies; Brook, (Brit. Mus.) St. Helena. 
6. Aphanipathes cancellata Brook. 
Aphanipathes cancellata Br. BROOK. Antipatharia, Chall. Rep., p. 133, pi. Ill, figs. 5 — 9. 
Aphanipathes hancocki F.-C. FORSTER-COOPER, Antipatharia (Percy SI. Tr. Exp.), p. 312, fig. 8. 
Merauke. Dutch South New Guinea. 1 spec. 
This dried specimen, collected by Dr. I. W. R. Koch, is an oval fragment of a colony, with 
a long axis of 40 cm. and a short axis of 30 cm. There are no principal branches to be descried. 
Hie mode of branching is the same as in Brook’s specimen; there are frequent fusions to a 
close-set reticulum. All the branches are curved or sinuous. Only the ultimate ones are straight 
and free; their length is ± 0.5 cm. The colony is branched in a plane but there are many 
dents and curves in this plane. Right across the colony-plane, along the long axis, an other 
