HYDROIDS OF THE HAWAIIAN ISLANDS. 
943 
has decided to use a classification that will be conservative, not disturbing the more generally accepted 
arrangements of Hincks and Allman, except where they are manifestly contrary to facts discovered 
since they were proposed. 
Genus CAMPANULARIA. 
Trophosome . — Colony usually branched, sometimes fascicled. 
Gonosome . — Gonangia producing sexual products which produce planulae and not medusae. 
Campanularia eloisa Nutting, new species. 
(PI. n, figs. 4, 6; pi. vin, figs. 4-7.) 
Trophosome . — Colony attaining a height of about 5 inches. Stem and main branches fascicled, 
the pedicels sometimes opposite and sometimes springing from all sides of the main stem and branches, 
often being directed at right angles to the latter. Hydrothecae quite large, tubular, with 14 to 16 strong 
rounded teeth, borne on long slender pedicels which are annulated just below the hydrothecae, but 
usually not at the proximal end. 
Gonosome . — Gonangia borne on stem and main branches, elongate-ovate in shape, truncate at 
distal end, proximal portion showing a number of very weak annulations. Pedicels very short. 
Gonangia considerably shorter than the hydrothecae. 
Distribution . — Station 3853, south coast of Molokai Island, 68.5 fathoms; station 3859, between the 
islands of Molokai and Maui, 139 fathoms; station 3949, northwest of the island of Laysan, 59 fathoms; 
station 4077, northeast coast of Hawaii Island, 99 fathoms. 
This species evidently belongs to the Verticillata group, having a strongly fascicled stem and 
scattered pedicels. It differs from C. verticillata in the shape of the hydrothecse and gonangia, and 
also in the arrangement of the pedicels. 
Campanularia spinulosa Bale. 
A fragmentary specimen which appears to belong to this species was secured at station 4071, off 
the north coast of the island of Maui, at a depth of 52 fathoms. 
Campanularia spinulosa Bale, Proc. Linn. Soc. New South Wales, III, series 2, 1888, 756. 
Family CAMPANULINIDAJ. 
Trophosome . — Hydrothecse pediculate, tubular, with an operculum composed of several converging 
segments forming a tent-like structure. Hydranth with a conical proboscis. 
Gonosome . — Gonangia producing either the_sexual elements direct or free medusae. 
Genus STEG0P0MA. 
Trophosome . — Hydrothecse with the distal ends beveled on opposite sides and the aperture closed 
with an operculum composed of numerous segments, the whole resembling an A tent. 
This genus, proposed originally by Prof. G. M. R. Levinsen ®, seems to me to be practically 
convenient, whether a natural one or not, and it is therefore adopted in this paper. There is no 
character used in connection with the gonosome. 
Stegopoma gilberti Nutting, new species. 
(PI. ill, fig. 1; pi. ix, fig. 1.) 
Trophosome . — Colony attaining a height of 6 inches or more. Stem and branches fascicled, 
branches irregularly alternate and themselves often giving off irregularly disposed branchlets. 
Pedicels arising irregularly from the peripheral tubes of the fascicled stem and branches. Hydrothecse 
very large and slender, their bases passing insensibly into the pedicels, which are not more than one 
and a half times as long as the hydrothecse; margin cut away on opposite sides so as to be strongly 
beveled, the beveled sides being fitted with opercula, which are split up into many narrow, ribbon-like 
“Meduser, Ctenopliorer og Hydroider fra Gronlands Vestkyst, Copenhagen, Ssertryk af Vidensk. Meddel. fra den 
naturk. Foren, 1892, 35. 
F. C. B. 1903, Pt. 3—12 
