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are slightly swollen. The branching is simpler than in the specimen described by Nutting, and 
there are no anastomoses. 
The calyces are practically contiguous and on all sides; their walls show large imbri¬ 
cated scales. The operculum consists of slender triangular points, consisting of two sloping spicules 
with a basal one between. The delicate collaret shows 2—3 rows of horizontal slender spindles. 
The spicules include: 
(a) very rough warty discs with toothed edges, some almost oblong, some almost circular; 
( b ) various sizes of rough spindles; 
( c ) some quadriradiates ; 
( d ) small irregular forms. 
We agree with Kukenthal in including this species in his genus Discogorgia (1919) 
which differs from Placogorgia in the presence of warty disc-like spicules in the rind. In Placo- 
gorgia these are found only in the calyx. 
Previously recorded from Postilion Islands, Aru Islands, and Flores Sea. 
Genus Heterogorgia. 
1. Heterogorgia vmricelloides Nutting. 
For description see: NUTTING, Gorgonacea of the Siboga Exp., XIIIb, 1910, p. 89, 3 figs. 
Stat. 303. Haingsisi. Up to 36 M. Lithothamnion. 1 Ex. 
A slender unbranched deep coral-red colony, 16 cm. in length, with a breadth of about 
1.5 mm., with a yellowish brown axis. The calyces, which occur all round, are low truncate cones 
with vertical tooth-like projections round the margin. 
The spicules are large sinuous spindles, very densely warted, sometimes with exaggerated 
tooth-like prominences on one side. Besides these there are numerous small stars, often with one 
salient projecting point as seen on the calyx. Small spindles also occur, sometimes with a slight 
median constriction or a crossing of lines. 
Our specimen is evidently the same as that described by Nutting and we retain his 
naming. It seems doubtful, however, whether the genus Astromuricea, well-defined by Germanos, 
and marked not only by stars but by double stars and wheels, and by a paucity of spindles, 
can be profitably merged in Heterogorgia. 
Previously recorded by Nutting from Siboga Station 47, Bima. 
Family Acanthogorgiidae. 
Genus Acanthogorgia. 
1. Acanthogorgia angustiflora Kukenthal and Gorzawsky. 
For description see: KUKENTHAL, Japanische Gorgoniden, I, 1908, p. 58, 3 figs. 
Stat. 254. 5°40'S., I32°26 / E. 310 M. Fine grey mud. 2 Ex. 
Two very young specimens, both 1.2 cm. high, agree well with Kukenthal’s description 
and figures of this species. In both the brown axis is very fully developed and quite distinct. 
