202 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Distribution. — British Isles (Alder, Allman) ; Woods Hole, Mass. 

 (Nutting) ; San Juan Archipelago (Fraser) ; Hawaii (Nutting) ; 

 Japan (Stechow). 



It seems to me likely that the E. attenuatum reported from the 

 Philippines by Hargitt belongs to this species. 6 



Family HALECIDAE 



7HALECIUM LIGHTI Hargitt 



Halecium lighti Hargitt, Hydroids of the Philippine Islands, Philippine 

 Journal of Science, vol. 24, No. 4, April, 1924, p. 489, pi. 4, fig. 13. 



A fragmentary specimen which has evidently dried and is without 

 recognizable soft parts is referred with doubt to this species. The 

 stem is fascicled, as is ven^ common in this genus; the branches are 

 usually subalternate and regularly divided into internodes, each of 

 which bears a sessile hydrophore much as figured by Hargitt so far 

 as general shape is concerned. Contrary to his description, the 

 series of " punctae " or round dots which encircle the hydrophore 

 just below the margin is quite evident in the Albatross specimen. 



Hargitt failed to find the " pair of extra large tentacles, some of 

 which seemed to be armed with especially large nematocysts," which 

 Light regarded as a specific character. He (Hargitt) says: "This 

 detail of his description proved to be only partly true, large num- 

 bers of hydranths being entirely devoid of these specialized ten- 

 tacles, some having but one, thus rendering the specific designation 

 proposed very doubtful and even misleading." In his figure Har- 

 gitt represents the hydranths as being of the ordinary type for 

 Halecidae. If these extraordinary tentacles are actually present 

 the species should be made a basis for the description of a new genus. 



In the absence of the gonosome the specific identity of this form 

 seems to me to be extremely dubious. It is very much like Hale- 

 cium sessile Norman as figured by Stechow. 7 



Locality.— Station 5149, off Sirun Island, 5° 33' N., 120° 42' 10" 

 E. ; depth, 10 fathoms. 



Distribution. — Port Galera Bay, Mindoro, " growing in strong 

 currents flowing in and out of the bay " (Hargitt). 



Family CAMPANULARIDAE 



OBELIA THORNELYI, new species 



Obelia serrulata (Bale) Thobnely, The Hydroid Zoophytes collected by 

 by Doctor Willey in the Southern Seas. Willey's Zoological Results, 

 pt. 4, Cambridge Univ. Press, 1899, p. 453, pi. 44, fig. 5. 



I do not consider Miss Thornely correct in ascribing the species 

 referred to above to the O. serrulata of Bale. The original descrip- 



8 The Philippine Journal of Science, vol. 24, No. 4, 1924. p. 474. 



7 Hydroidpolypen der japanischen Ostkiiste, pt. 2, 1913, p. S6, fig. 54. 



