2 9 
in several is growing over a piece of Madrepore coral. The colour of the base and tentacles is 
a rusty brown or a rather greenish-cream while the tentacles are all cream-coloured or very 
slightly tinged with brown. 
Previously recorded from Ternate and New Caledonia. 
8. Xenia garcice Bourne. ' 
For description see: 
Bourne, Phil. Trans. Roy. Soc. London, V, 186Z?, 1895, p. 475, 3 figs. 
Ashworth, Willey’s Zool. results, Part 4, 1900, p. 524, 1 fig. 
Stat. 152. Waigeu Island. 32 M. Lithothamnion-bottom. 8 Ex. 
Stat. 250. Kur. Reef. 2 Ex. 
Several small colonies from Station 152 agree well with Bourne’s and Ashworth’s description 
and figures. They are only about 1 cm. in height with very slender little polyps up to 3 mm. 
in length, arising from the ends of the branches. The pinnules are short and finger-shaped, 
arranged in three rows of about 10 on each side of the mid-line. What is most typical in the 
arrangement of the pinnules is that the outer row from each side arises very near to the outer 
row of the other side, practically at the mid-line on the aboral surface of the tentacle, a most 
unusual feature in any Xenia, where the tentacles generally show a marked bare aboral streak. 
The circular disc-like little spicules are very numerous. The colour of our specimens in spirit 
is, in trunk and branches a bluish-grey, in polyps and tentacles cream. 
Two withered little colonies from Station 250, Kur, show the same features, but a rather 
deeper greenish grey colour in the dried up stems. 
Previously recorded from Ternate and Indian Ocean (Diego Garcia). 
9. Xenia aslvworthi Kukenthal. 
For description see: 
BOURNE, Phil. Trans. Roy. Soc. London, 1895, V, 18 6B, p. 476, 3 figs. 
Ashworth, Quart. Journ. Microsc. Sci., 1900, XLII, p. 284, 2 figs. 
Stat. 33. Bay of Pidjot, Lombok. 22 M. and less. Mud, coral and coral sand. 1 Ex. 
Stat. 213. Saleyer. Up to 36 M. 3 Ex. 
Three colonies of this dimorphic species from Saleyer, one of which shows an interesting 
case of parasitism. In the tallest specimen the stout unbranched trunk arises from a slightly 
expanded base to a height of 1.7 cm. with a maximum diameter, at the rather flattened top, 
of 1.5 cm. The surface of this stock is thickly covered with autozooids and with the much more 
numerous densely packed siphonozooids, which lie crowded together between the bases of the 
autozooids. The latter are contracted and wrinkled, not exceeding 6 mm. in length. The very fully 
expanded tentacles, not well preserved, are up to 6 mm. long, and bear three rows of pinnules on 
each side. At the expanded tips there appears as if two rows. A bare space is left between the 
pinnules on both sides up to the tip. The preservation in this specimen was not good enough 
to allow of a count of the pinnules. The numerous siphonozooids have an average height of 
about 2 mm., with simple tentacles, like small swollen lobes, without pinnules. These tentacles 
arranged round the small mouth are however, quite conspicuous, being whiter and rather swollen. 
