4.7 
Although these specimens are no doubt referable to what Klunzinger, May, and others 
have called Alcyonium leptoclados , we must agree with Luttschwager in refering them to the 
genus Sinularia (= Sclerophytum of Pratt). The spiculation shows the typical Sclerophytum 
type, (a) in the abundance of minute clubs in the cortex, and ip) in the frequency in the interior 
of huge massive spindles densely covered with compound warts producing an appearance of rows. 
The important general result of comparing these numerous colonies is a demonstration 
of the close structural and spicular similarity of forms whose mode of growth shows remarkable 
diversity, from thick digitiform lobes to much more numerous, smaller, more rounded twigs. 
2. Sinularia polydactyla (Ehrb.). (Plate XXII, Fig. 3). 
(= Alcyonium polydactylum Dana). 
For description see: 
BURCHARDT, Alcyonaceen von Thursday Island und Amboina II, Jenaische Denkschriften, 
1898, pp. 663—67, 3 figs. 
PRATT, Alcyonaria of the Maldives, II, Fauna and Flora of Maidive and Laccadive Archi¬ 
pelagoes, 1903, p. 524. 
Stat. 7. 7°55 / -5S., ii4°26 / E. 15 M. and more. Coral and stones. 1 Ex. 
Stat. 33. Bay of Pidjot, Lombok. 22 M. and less. Mud, coral sand, and coral. 1 Ex. 
Stat. 37. Sailus Ketjil, Paternoster-islands. 27 M. and less. Coral and coral sand. 1 Ex. 
Stat. 53. Sumba. Up to 36 M. Coral sand; near the shore mud. 1 Ex. 
Stat. 58. Savu. Shore. 1 Ex. 
Stat. 115. Kwandang-Bay. Reef. 5 Ex. 
Stat. 127. Sangir-island, Taruna Bay. Reef. 1 Ex. 
Stat. 142. Laiwui, Obi Major. 23 M. Mud or Reef. 1 Ex. 
Stat. 152. Waigeu-island. 32 M. Lithothamnion-bottom. 1 Ex. 
Stat. 193. Sula Besi. 22 M. Mud. 1 Ex. 
Stat. 232. Amboina. Reef. 1 Ex. 
Stat. 258. Tual, Kei-islands. 22 M. Lithothamnion; sand and coral. 2 Ex. 
Stat. 299. io°52 / .4S., 123 0 i'.i E. 34 M. Mud, coral and Lithothamnion. 2 Ex. 
Stat. 313. Saleh-bay. Up to 36 M. Sand, coral and mud. 1 Ex. 
Stat. . Unrecorded. 2 Ex. 
A fine and typical specimen of this well-known species from Station 37, is 9 cm. in 
maximum height, and about 21 cm. in maximum length, with a basal breadth maximum of 10.5 cm. 
It agrees in every respect with the full descriptions given by Burchardt and Miss Pratt. 
A typical colony from Station 193, 6.5 cm. in maximum height, 14 cm. in basal breadth, 
with numerous stumpy branches bearing digitiform lobes. Some of the large spindles show a 
zoning of the compound warts and an occasional middle line. Forks also occur. 
A typical specimen with a sterile stem 3.5 cm. in height and numerous short finger-like 
branches which bring the total height to about 4.5 cm. The spicules include : 
(a) large broad spindles densely covered with compound warts, up to 2.3 X 0.35 mm.; 
(p) narrower spindles with simple warts (0.7 X 0.06 mm.); 
(1c ) small clubs with irregular, often almost digitate ends (0.18 X 0.02 mm.). 
A different mode of growth with slender tapering fingers marks a colony from Tual, 
dredge. It resembles Burchardt’s PI. LVI, fig. 5. It has the spiculation of an ordinary 5 . poly- 
dactyla , including what Miss Pratt called K-forms of large spindle. 
