A yellowish colony from Station 306 shows numerous more or less parallel branches, 
which bear on their upper portions many long polyps. The total height is 8 cm., and the polyps 
are about 5 mm. in length, not including the tentacles. They are arranged somewhat after the 
fashion of an ear of wheat. There are no spicules. Certain polyps show numerous large 
unsegmentecl ova (0.6 mm. in diameter) with a definite membrane which is moored to the mesentery. 
A portion of a badly preserved colony, growing from a broken base, to a height of 
7.8 cm. bears in its upper region a number of polyps arranged as on an ear of wheat. The 
polyps are about 4 mm. in length; the pinnules are delicate and pointed, in a single row on 
each side of the middle line. 
Previously recorded from the Indian Ocean (Kokotoni, near Zanzibar). 
2. Cespitularia tceniata May. 
For description see: May, Jenaische Zeitschr. Naturwiss,. 1899, XXXIII, p. 89, 1 fig. 
Stat. 99. 6° 7'.5 N., 120° 26'E. 16—23 M. Lithothamnion-bottom. 7 Ex. 
Stat. . Unrecorded. 2 Ex. 
Two specimens from an unknown locality show the distinguishing features of this species, 
which is near to but distinct from C. cceruleci. The stem and branches are much flattened, the 
polyps are smaller than in C. coerulea with a maximum length of 2 mm., and the tentacles 
are also shorter, the maximum length in our specimen being 1.7 mm. The tentacles bear on 
each side a single row of about 15 finger-shaped pinnules. 
In one of the specimens a membranous base with a maximum diameter of 1.7 cm. 
spreads over a piece of polyzoon-covered madrepore. From this arise two main stems, one 
unbranched, 2.2 cm. in length and bearing polyps on all sides, the other giving rise to four 
polyp-bearing branches, which are very soft, flattened and flexible. The total height of this 
short stem with the branches is 2.7 cm. There are no spicules. 
The other specimen has a total height of 3.7 cm. arising from a base 9 mm. in diameter. 
From the short sterile stalk at a height of 4 mm. is given off a long and narrow rounded 
stolon (2.1 cm. in length with a diameter of about 1 mm.). This connects the main colony 
with a smaller one, 1.4 cm. in height with a basal diameter of 9 mm. The colour in both 
specimens is a dirty grey-cream colour. 
Several small colonies from Station 99, the largest with a height of about 4 cm., show 
characteristics exactly similar to those of the above specimens. 
Previously recorded from Indian Ocean (Mozambique). 
3. Cespitularia simplex n. sp. (Plate XXIV, Fig. 3). 
Stat. 40. Kawassang. 12 M. Coral reef. 3 Ex. 
Three colonies from Station 40, Kawassang, require the establishment of a new species 
in the genus Cespitularia, which differs from the genus Xenia in that the polyps arise at various 
levels over the surface of the branches, and not in terminal clumps. The characteristics of these 
specimens approach most nearly to Cespitularia mollis (Brundin), disagreeing with that species 
however, in more than one respect. 
SIBOGA-EXPEDITIE XIII</. 
5 
