REPORT ON PHILIPPINE HYDROIDA 211 



oblique. The pedicel is borne on a short shoulder-like projection of 

 the branch or pinna. Hydranths, not sufficiently well preserved for 

 description, but apparently of the ordinary campanularian type. 



Gonosome. — Not known. 



Localities. — Dredging station 5149, Sulu Archipelago, vicinity of 

 Siasi, 5° 33' N., 120° 42' 10" E.; depth, 10 fathoms. Station 5310, 

 China Sea, vicinity of Hongkong, 21° 33' N., 116° 13' E. ; depth, 100 

 fathoms. 



Distribution. — Bale reports it from Holbrun Island 20 fathoms 

 (Mr. Haswell). G. Conrad Bartlett published a list of species, 

 including Carn/panularia rufa, in the Geelong Naturalist (No. 35, 

 April, 1907, p. 41), but does not give the localities at which the 

 specimens were collected. 



This species differs from G. marginata Allman in having a fas- 

 cicled stem and from C. subrufa Jaderholm in the general absence 

 of nodes on the pinnae or ultimate branches. 



ZYGOPHYLAX CONVALLARIA (Allman) 



Lafoea convallaria Allman, Hydroida of the Gulf Stream, 1877, p. 12. 



So far as I can ascertain this is the first time this very beautiful 

 hydroid has been reported since it was originally described by 

 Allman. As several additional characters are shown in the speci- 

 mens collected by the Albatross, the following description is offered. 



Trophoso?ne. — Colony 10 cm. in height and with a spread of about 

 7 cm. Stem and main branches fascicled. At or near the bases of 

 the stem and larger branches a number of delicately branched struc- 

 tures appear which are probably phylactogonial in their nature. 

 There are also scattered very slender, tubular offshoote that are 

 probably elongated nematophores. Main branches subalternate or 

 opposite. Ultimate branches subalternate and not divided into inter- 

 nodes. Hydrothecae all on one side of the ultimate branchlets but 

 inclined alternately to right and left, very gracefully curved upward 

 and outward from their pedicels, the curve being much like that of a 

 sickle, forming one of the most graceful hydrothecae that the writer 

 has ever seen. They are somewhat swollen at the base and narrow 

 distally, ending in an even circular margin which is sometimes 

 reduplicated. There are usually two hydrothecae on the main branch 

 between adjacent alternate branchlets. The pedicels vary greatly 

 in length, the hydrothecae on the main stem and proximal parts of 

 the main branches being almost sessile, while those on the ultimate 

 branches often have pedicels almost or quite as long as the hydro- 

 thecae. Nematophores are small, inconspicuous, and sparsely dis- 

 tributed. They have a tendency to occupy a position on the pedicels 

 on stem near the base of the hydrothecae. 



