Fragments of two specimens, of creamy white colour, show the characteristic sharp edges 
of Iciligorgia, and agree well with the descriptions given by Ridley and Nutting. There is an 
ill-defined organic differentiation, but there is no central canal in the middle of the medullary 
portion. The well-defined canals form the typical ring between the cortex and the medulla. 
The specimen should therefore be retained in the genus Iciligorgia, and not referred to 
Kukenthal’s (1919) Machaerigorgia which, if real, has medullary nutritive canals. 
The spicules belong to the following types: 
(а) short stout spindles very densely covered with compound warts; 
( б ) short stout spindles with more distant and simpler warts; 
(r) longer spindles with compound warts, sometimes crowded, sometimes more distant; 
( d ) narrow, slender spindles with only a few prominences, including some practically smooth; 
( e ) a few crosses. 
Previously recorded from Torres Straits, West Indies, and by Nutting from Aru Islands 
and Paternoster Islands. 
Genus Semperina. 
1. Semperina hrunnea Nutting. 
For description see: NUTTING, Siboga Exp., XIII b, 1911, p. 12, 2 figs. 
KUKENTHAL, Deutsch. Tiefsee Exp XIII, 1919, p. 53, 1 fig. 
Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion, sand or coral. 1 Ex. Fragments. 
Some broken pieces, the largest 11.3 cm. in height, with an average diameter of 6 mm. 
The colour is light brown. The branching tends to be in one plane, but incurved. It cannot 
be strictly called dichotomous. 
Among the features of this species the following may be noted. The ends of the branches 
are swollen and sometimes cupped; the polyps are on one surface and on the sides; their low 
calyces show a collaret of 4—6 rows, followed by a chevron arrangement; the spicules include 
(a) tuberculate blunt-ended ovals, some almost spherical; ( b ) strong curved warty spindles; ( c ) 
very delicate elongated rods which occur along with ( a ) and ( b ) types in the interior, some 
almost smooth, others with many low roughnesses. 
The genus Semperina is according to Ivukenthal separated off from Suberia (1) by 
being branched, and with the branches swollen at the ends, (2) in having abundant spiculose 
polyps with true calyces; and (3) in the abundance of long narrow rods in the interior. The 
genus Suberia would on this view include only S. clavaria Studer and S', capensis Stuart Thomson. 
Previously recorded from Stations 164 and 273 (by Nutting) Malay Archipelago, AruTslands. 
2. Semperina kollikeri (Studer). (Plate V, Fig. 8). 
For description see: STUDER, Monatsbericht Akad. Wiss. Berlin, 1878, p. 667, 4 figs. 
KUKENTHAL, Deutsch. Tiefsee Exp. XIII, 1919, p. 56. 
Stat. 316. 7°I9'.4S., ii 6°49 / .5E. 538 M. Fine, dark brown sandy mud. 
A couple of fragments, about a centimetre in length, agree well with Studer’s description 
