33 
( 6 ) the dorsal and lateral surfaces of the polyps show double rows of towards 6 pairs of spindles 
in chevron; 
(y) the larger cortical spicules include not only thorny spindles but some thorny pseudo-clubs 
and numerous jagged irregular forms; 
{d) Some of the canal-wall spindles are almost smooth. 
Previously recorded from Red Sea. 
2. Nephthya cunentacea Studer. 
For description see: STUDER, Mitth. Geogr. Ges. Naturh. Mus. Lubeck. II, Part 7 and 8, 
p. 123, 2 figs. 
Stat. 60. Haingsisi, Samau-island. Reef. 1 Ex. 
An upright bushy colony from Haingsisi approaches most nearly to this species. The 
stem is broad and short, dividing after about 1 cm. into numerous stout lappet-bearing branches. 
The conical lappets have average dimensions of 8 mm. X 4 mm. The polyps are borne at a 
slightly acute angle to the polyp stalk; the supporting bundle is strong with spindles up to 
about 1 mm. long, seldom projecting beyond the polyp head. The armature of the polyp shows 
up to 5 or 6 pairs of spindles in chevron on the back and sides of the polyp, and on the 
inner side there are a few more irregularly arranged rather smaller spindles. 
The spicules of the upper rind are stout warty spindles up to 1.1 mm., often with the 
thorns somewhat larger to one side; these are shorter and more thorny in the lower rind, where 
there are also found a few smaller forms, rather irregular with large projections. These are not 
at all numerous, the great majority being the spindle type. In the canal walls are found finely 
warted spindles up to 1 mm. in length. 
Previously recorded from Sulu-Island. 
3. Nephthya chabrolii Audouin. 
For description see: KuKENTHAL, Versuch einer Revision der Alcyonarien, II, 1904, p. 157. 
Stat. 164. i°42'.5 S., i30°47 / -5 E. 32 M. Sand, small stones and shells. 
Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand and coral. 5 Ex. 
Stat. 273. Jedan-island. 13 M. Sand and shells. 2 Ex. 
Stat. Unrecorded. 2 Ex. 
Several well-developed limp colonies, with a considerable range of colour variation, show 
the characters of this species. Thus the growth is bushy, the short stem early dividing into 
several branches; the polyps arise in small clump-like lappets on the surface of the stem and 
branches, or are borne on the terminal oval-conical twigs or lappets. In a fully expanded colony 
the growth approaches more nearly to the Dendronephthya type than in most species of Nephthya. 
The polyps are 0.5—0.6 mm. high and 0.5—0.7 mm. broad. They sit at right angles to the 
polyp-stalk. The armature consists dorsally and laterally of 5—8 pairs of spicules in chevron 
and on the inside of 4 pairs. The supporting bundle consists of thorny spindles, which do not 
generally project. In the upper cortex lie thorny spindles; in the lower cortex are found spindles 
and numerous stars, and double stars. In the canal walls are long spindles, up to 1.3 mm., 
covered with simple prominences. 
