REPORT ON PHILIPPINE HYDROIDA 201 



gives as a character of this species is not evident. Allman, to be 

 sure, did not mention this feature, neither is it indicated in his 

 figures, but Mark, in 1898, studied the type specimen in the British 

 Museum and noted its tendency toward bilateral symmetry. 



The proboscis with the distal set of tentacles was torn off, but 

 appears as a large fragment in the bottle containing the specimen 

 and this fragment doubtless belong to the same specimen. The gono- 

 phores are much as described by Stechow, the older ones being 

 generally ovate in form while the immature ones have a triangular 

 profile as represented by him such as I have not seen in other species. 



Locality. — Dredging station 4920, Musakaki Jima, N. 10° E., 17.5 

 miles (30° 34' N.; 129° 22" E.) ; depth, 440 fathoms. 



Distribution. — The type specimen was found off Yokohama, 

 Japan, at the great depth of 2,900 fathoms, and other specimens 

 are mentioned by Stechow from Sagami Bay, Japan. Some of 

 the specimens reported by him come from a depth of only 250 

 fathoms. Although this specimen was accidentally included in the 

 Albatross material from the Philippine Islands, it seems to me that 

 this brief note of it can occur here with the understanding that it 

 is not as yet known from the Philippine Islands. 



Family EUDENDRIDAE 



EUDENDRIUM CAPILLARE Alder 



Eudendrium capillare Alder, Cat. Zooph. Northunib. and Durham, 1857, 

 p. 15, pi. 1, figs. 9-12. 



The soft parts of the specimens secured by the Albatross are so 

 matted together that details can hardly be ascertained. The 

 following points, however, can be made out fairly well. 



Trophosoine. — Colony about 3 cm. high. Branches irregular, 

 smooth for the most part, but often with about three annulations 

 above their origin. Other branchlets or pedicels are often alternate, 

 but not always so. Main stem quite smooth. The hydranth has 

 the characteristic trumpet-shaped proboscis of the Eudendridae. 

 The tentacles are all filiform and arranged in a single whorl around 

 the base of the hydranth. They are quite numerous, at least 26 

 being counted in one case. 



Gonosome. — Gonophores borne in clusters on the pedicels beneath 

 the hydranths, the latter being sometimes more or less aborted. 

 Both sexes appear on the same colony and in one case a cluster of 

 male gonophores were on one side of a branch and one of female 

 gonophores on the other. Both are of the characteristic Eudendrium 

 type. The male gonophores are bithalamic in the single cluster 

 found and thus agree with the original description of this species. 



Locality. — Dredging station 5174, latitude N. 6° 03' 45", longitude 

 E. 120° 57', off Jolo light 2.6 miles; depth, 20 fathoms. 



19155—27- — 2 



