73 
A specimen from Muaras Reef differs somewhat markedly from the others in its mode 
of growth, and yet it has precisely the same spiculation as is shown elsewhere. The colony 
rises to a height of 4.8 cm., of which 3.2 is made up of the sterile stalk, which has an average 
diameter of 1.8 cm. The polyparium has diameters of 4.6 cm. and 3.3 cm. It consists of about 
fourteen low rounded hillocks, markedly different from the usual lobes which are characteristically, 
though not universally, much narrower cones. A common diameter for a rounded hillock is 1.5 cm. 
A specimen from Station 99 is in its mode of growth somewhat intermediate between the typical 
forms and the colony from Muaras. Here again we learn that the mode of a colony’s growth 
is in many cases of secondary importance. 
A fragment from Haingsisi, is simply the base of a young colony. It shows characteristic 
spicules, notably (c) and ( e ) types. 
Previously recorded from Pacific Ocean, New Ireland. 
3. Capnella morula Thomson and Mackinnon. 
For description see: THOMSON and MACKINNON, Alcyonarians of Percy Sladen Trust Expedition, 
Trans. Zool. Soc. XIII, 1909, p. 179, 1 fig. 
Stat. 58. Savu. Up to 27 M. Sand. 1 Ex. 
A colony of a creamy brown colour, consisting of a short, much corrugated, densely 
spiculose stem, from which arise four main very short branches, dividing again into numerous 
rounded lappets, densely covered with almost imbricated polyps. The whole rises to a height 
of 3.6 cm., the head with a maximum breadth of 3.1 cm. 
As there is no supporting bundle, but a mass of large canal wall spicules, it must be 
placed in the Capnella-Leimialia-Scleronephthya section of the Nephthyidae. The difficulty is that 
the typical foliaceous clubs are not present, though their place is taken by club-like derivatives 
of spindles, with one end much expanded and divaricate. The aboral armature of a polyp, which 
shows no hint of a supporting bundle, consists of a double row of spindles, in chevron or straight 
according to the state of contraction. The aboral surface shows a few spicules without regular 
arrangement. 
Besides the warty spindles there are triradiates, almost cylindrical forms with asymmetrical 
prominences like fangs, and very irregular small forms, some slightly foliate. 
Previously recorded from S. W. Indian Ocean. 
Genus Lemnalia. 
1. Lemnalia rhabdota Bourne. 
For description see: BOURNE, On the genus Lemnalia, Trans. Linn. Soc. Zool. VII, 1900, 
p. 528, 3 figs. 
Stat. 47a. Entrance Bay of Bima. Coral shore. 1 Ex. 
Stat. 60. Haingsisi. Shore. 1 Ex. 
Stat. 299. io°52 / .4S., I23°i / .i E. 36 M. Mud, coral and Lithothamnion. 3 Ex. 
Stat. . Unrecorded, 1 Ex. 
The best of three specimens is a much broken colony from Station 299, 22 fms., of a 
yellowish white colour and brown tentacles. The subsessile anthocodiae are crowded on the distal 
SIBOGA-EXPEDITIE XIII d. 
IO 
