92 
Polyps : Inconspicuous: on one side of the colony, in a single series. 
Radiate or slightly transversally elongated. In ter poly par distance i mm. 
Length of tentacles 0.15 mm. Low oral cone with round, small mouth. 
Stat. 
Stat. 
Stat. 
Stat. 
Stat. 
90. 
9 1 - 
95 - 
Soi. 
5. Aphatiipathes pennacea (Pall.) Brook. 
Aphanipathes} pennacea Pall. Brook, Anthipatharia. Chall. Rep., p. 129, pi. XI, fig. 23. 
Antipathes pennacea Pall. Pallas, El. Zooph., p. 209; LAMOUROUX, Polyp, flex., p. 379; 
Encycl. method., p. 71 ; Dana, Zooph., p. 582; Milne-Edwards, Coralliaires, t. 1, p.318. 
Antipathes plunia Gray. Gray. Proc. Zool. Soc. London 1857, p. 291. 
2. 9°3'.4S., ii9°56'.7E. Savu-sea. 959 M. Globigerina ooze. 1 spec. 
i° 17'. 5 N., ii 8 0 53’E. Makassar-straits. 281 M. Coral sand and stones. 1 spec. 
Muaras-reef (East coast of Borneo). Up to 54 MJ Hard coral sand. 1 spec. 
5°43-5N., ii9°4o'E. Sulu-sea. 522 M. Stony bottom. 1 spec. 
io°38'S., I23°25'.2E. Pepela-bay, East coast of Rotti-island. 27 — 45 M. Mud, 
coral and Lithothamnion. 1 spec. 
The colony of station 301 is a complete specimen with a stem of ± 7 cm., in its first 
part curved, but further straight. It tapers swiftly; the top is snapped off. There are two rows 
of branches, one on the right, one on the left. One branch in each row is very large and 
thick; both are curved sligthly upwards and snapped off after a few cm. The branches alternate 
regularly to the right and to the left; the mutual distance in a row is ± 2 mm. Some branches 
bear secondary branches, which alternate as regularly in two rows, although irregularities are 
rather frequent. Some tertiary branches occur, which alternate regularly or are arranged wholly 
irregular. All the branches lie in a plane, with very rare exceptions. The angle between the 
branches is always more than 6o° or slightly less. Fusions are entirely absent. The branches 
of higher order are straight; the ultimate branches are 1 — 3 mm. long. 
The spines (fig. 83) are arranged in 4 longitudinal rows, alternating in a straight quin¬ 
cunx. On the ultimate branches the length of the spines is 105 y and 
75 y. on opposite sides of the axis; their mutual distance is 170 y.. On 
the stem the distribution of the spines is irregular, while thhy are somewhat 
longer. On the ultimate branches the spines are inclined distally (fig. 83 a) 
with a concave distal side and a convex proximal side; the tophalf of 
their surface is rough, while the base is smooth. On the stem (fig. 83 6 ) 
they are inserted more upright on the axis and their shape is more slender, 
thinner and more aculeate. On the top of the stem and on some ultimate 
branches the spines are also more aculeate. 
The polyps (fig. 84) are badly preserved and rare; they are found 
:>nly on one side of the axis. On the branchlets the polyps have knob-shaped tentacles, and 
a round oral cone; the spines project through both this parts of the 
polyps. The colour is milk-white; the interpolypar distance is 1 mm.; the 
tentacles are arranged in two rows. — On the stem only oral apertures 
are found, but no tentacles; beside this degenerated polyps no normal ones 
are present on the stem. 
The fragmentary specimen of station 90 is branched in a plane, with a straight stem 
Fig. S3. Aphanipathes penna- 
cea (Pall.) Brook, a Spines on 
smaller branch; b spines on 
the stem; a, b 52 X- 
•W"r- r 
■ 
Fig. 84. Aphanipathes pen- 
nacea (Pall.) Brook. Polyp 
on a smaller branch : 21 X- 
