52 MARINE BIOLOGY OF THE SUDANESE RED SEA. 
XENIA FUSCESCENS, Hhrenberg. 
Several colonies, showing two sizes of zooids, are referable to this species, 
which is closely related to X. wmbellata, Savigny. 
The larger zooids have bodies up to 18 mm. in length, with tentacles about 
half as long. There are about 40 long slender pinnules on each side, in two 
rows. There are abundant zoochlorelle. 
The small zooids are 2-4 mm. in height. They show minute tentacles, but 
no pinnules. 
Locality —Suakim Harbour, } fathom. Previously recorded from the Red 
Sea, Zanzibar. 
ALCYONIUM SPHHZROPHORUM (hrenberg). 
See C. B. Klunzinger: Die Korallthiere des rothen Meeres, Part I. Die Alcyonarien, 
etc., 1877, p. 22. 
W. May, 1899, Joe. ert. p. 105. 
The collection includes numerous specimens of this common species. In 
their mode of growth they more nearly resemble A. pachyclados, but their 
spicules are nearest those of A. sphwrophorum. We see no reason for 
regarding these as distinct species, and we would suggest the incorporation of 
the former in the latter. 
We are inclined to think that A. globuliferum, Klunzinger, A. digitulatum, 
Klunzinger, and A. brachyclados, Khrenberg, should be referred, along with 
A. pachyclados, to one species—A. spherophorum. As described and figured, 
they do not seem to us to differ in more than slight quantitative characters, 
which are probably not more than individual fluctuations. The specimens 
here referred to A. spherophorum furnish all the kinds of spicules figured as 
distinctive of A. globuliferum, A. digitulatum, and A. brachyclados, though the 
most prevalent agree with those figured as distinctive of A. spherophorum. 
The colour of the living specimens was “ like weak cocoa ” with “ chocolate ” 
tentacles. This corresponds with Ehrenberg’s “ polypis fuscis.” 
Twelve species of Alcyonium have been reported from the Red Sea; but 
there is no doubt that the list will have to be much reduced. 
Locality.— From the coral shoal of Kal el Kebirain Suez Bay. Previously 
recorded from Red Sea, Madagascar. 
SARCOPHYTUM GLAUCUM, Quoy et Gaimard. (Plate 5. fig. 5.) 
See E, von Marenzeller: “ Ueber die Sarcophytum benanuten Alcyoniiden,” Zool. 
Jahrb. i. (1886) p. 352, Taf. ix. figs. 1 & 2. 
The collection includes several specimens of this species. 
A typical colony consists of a stout trunk, 1°5 em. high by 4:7 em. broad, 
somewhat concealed by the overhanging much folded lobes of the capitulum. 
The upper surface of the capitulum is about 11:5 em. in breadth, and the 
appearance presented by the convoluted and dovetailed lobes has been 
compared to that of a Meandrine Coral. 
