224 THE VOYAGE OF H.M.S. CHALLENGER. 



These bear bundles of from four to six polyp heads. These terminal lobules are united 

 with the others into lai'ger groups, and these again into four lobes which correspond to 

 the four main branches. The polyp heads are small ; the dorsal bundle of spicules is 

 only slightly developed, and projects only slightly above the head. Eight groups of 

 spicules form an opercular cover. 



Habitat. — Enoshima, Japan ; collected by Dr. Doderlein. 



Spongodes Jlcibellifera, Studer. 



Spongodes flabellifera, Studer, Ann. and Mag. Xat. Hist., ser. 6, vol. i. p. 72. 



The colony forms an upright stem, 73 mm. high, from which, at a height of 30 mm. 

 and upwards, branches come off on all sides. These, speedily ramifying, form at the end 

 small umbels in which each terminal twig bears a bundle of three to eight polyps, but 

 here and there also single polyps occur. The lowermost branches are flat and their twigs 

 are fused together ; they thus form fan-shaped, serrated folia whose margins are beset 

 with rows of polyps. The ramification is loose, so that it can easily be made out every- 

 where. The polyp heads are pedunculate, free from one another for a short space, and 

 slightly surmounted by bundles of spicules. The heads are surrounded by eight groups 

 of spicules arranged en chevron, which project like teeth above the margin. 



Height of the sterile stem, ...... 30 mm. 



Diameter, . . . . . . . . 16 ,, 



Height of the polyp-bearing portion, . . . . 43 „ 



Transverse diameter of the same, . . . . . 35 ,, 



The colour of the polyp umbels is dark fleshy-red, the stem and branches are white. 

 Habitat. — Enoshima, Japan ; collected by Dr. Doderlein. 



Spongodes klunzingeri, Studer. 



Spongodes klunzingeri, Studer, Arm. and Mag. Nat. Hist., ser. 6, vol. i. p. 72. 

 Spongodes 7-amuloga, Klunzinger, KoraUenthiere des rothen Meeres, p. 37, pi. iii. fig. 2. 

 Non Spongodes ramulosa, Gray, Proc. Zool. Soc. Loud., 1862, pp. 28, 29, figs. 5, 6. 



After comparison of the typical specimens of Spongodes ramidosa, Kluuzinger, from 

 the Rec' Sea, which Professor von Martens most kindly placed at my disposal from the 

 Berlin ]\Iuseum, wi'^h specimens of Gray's species, it became evident that the two are 

 specifically distinct. Hence the name Spongodes klunzingeri might be adopted for the 

 species described by Klunzinger. 



