35 
(3) the conspicuous calyces; 
(4) the dense armature of the polyps, with transverse rings below, and sloping chevroned 
spindles above; 
(5) the predominance of ovoid spindles with four or so zones of compound warts, and of other 
warted spindles which taper to one end or both. The polyps show delicate narrow spindles 
with low roughnesses. 
Previously recorded from Sagami Bay. 
2. Nidalia gramilata (Gray). 
For slight description (Bellonella gramilata ) see: Gray, Proc. Zool. Soc. London, 1862, p. 35. 
Stat. 240. Banda. 9—45 M. Black sand. Coral. Lithothamnion-bank in 18—36 M. 1 Ex. 
Without any satisfaction we refer to this imperfectly described species a poor and small 
specimen from Station 240. It is about 1.5 cm. in height, with a maximum diameter of 5 mm. 
The surface of the polyp-bearing portion shows low 8-lobed calyces, somewhat as in N. grayi n. sp. 
The colour is ochreous. All the polyps are retracted and we were unable to see any polyp spicules. 
The coenenchyma spicules are minute, some yellowish and some colourless, and include 
the following types: — minute double spheres, knobbed capstans, a few warty rods, and practically 
no spindles. 
Formerly, if the identification be correct, from Bellona Reef, North Coast of Australia. 
3. Nidalia macrospina Kiikenthal. (Plate VIII, Fig. 7). 
For description see: KUKENTHAL, Japanische Alcyonaceen, Abh. K. Bayer. Akad. Wiss. 1906, 
p. 30, 4 figs. 
Stat. 251. 5°28 / .4S., I32 °o / . 2E. 204 M. Hard coral sand. 1 Ex. 
A striking specimen, 6 cm. in height, by 1.2 in average breadth, agrees very closely 
with Kukenthal’s description. But there is only a hint of a stalk, and the colour of the 
preserved specimen is light brown. 
The armature of the polyp consists of about four rows of transverse spicules, and eight 
points with about 4 pairs steeply disposed in each. The outer surface of the tentacles is heavily 
armoured, and very large warty spindles form the wall of the calyx. 
Some of the external spindles attain a length of 4 mm. 
Previously described from Japan. 
4. Nidalia rubra (Brundin). (Plate XXIII, Fig. 6). 
For description see: BRUNDIN, Alcyonarien aus der Sammlung Zool. Mus. in Upsala, Bihang 
K. Svenska Vet. Akad. Hand!., 1896, Bd. XXII, Afd. 4, N° 3, Stockholm, p. 6, 2 figs. 
Stat. 289. 9°o / .3S., 126° 24'.5 E. 112 M. Mud, sand and shells. 2 Ex. 
With some hesitancy we refer to this species, a small rather shrivelled specimen from 
Station 289. The form and spicules of the colony agree well with Brundin’s description and 
figures, but the colouration differs. However Nidalia cinerea (Brundin), merged by Kukenthal 
