ORDER IT.— HYDROIDEA. 
147 
Family III.— CAMP ANULARID^. 
Hydroidea with persistent buds ; polyps long-tubular, calicles 
pedicellate; in modes of reproduction near the Tubularidae. 
The family includes two genera, as follows : 
Campanularia {Lamarck). — Polyps budding from an ascending shoot or 
stolon, erect, or climbing. 
Laomedea (Lamouroux). — Polyps alternately arranged, and zoophyte hav- 
ing its branches usually zigzag. 
Laomedea gracilis {Pickering). — Stems 6 to 8 lines high, and rising from 
a creeping stolon, regularly zigzag in form ; the stem for a short distance 
above the axils, and the pedicels, ringed; calicles campanulate ; vesicles ob- 
long-oval, tapering above and below, and truncated at apex, with a short neck. 
Plate 61, fig. 7, zoophyte, enlarged; 7 a, natural size; 7 h, polyp, partly ex- 
panded. — Gulf-weed, Atlantic, lat. 34° 39' N., long. 72° OP W. — Exp. Exp. 
Laomedea simplex {Dana). — Stem nearly straight, erect, pedicels not 
ringed, tubular, no true calicles; tentacles about 20, mouth projecting, ob- 
conical. 
Plate 61, fig. 8, zoophyte, enlarged ; 8 a, same, natural size ; 8 h, enlarged 
view of rostriform mouth ; fig. 6, p. 21, ■a. wood-cut of the same. — Feejee Isl- 
ands. — Exp. Exp. 
Family IV.— TUBULARIDiE. 
Hydroidse giving out persistent buds ; also producing decidu- 
ous oviform gemmules near the base of the tentacles, besides 
other true ova ; polyps mostly pedicellate ; tentacles not tubular. 
The following are the characters of the genera, as laid down 
by Yan Beneden : 
L Coralligenous ; forming horny coralla. 
1. Pennaria (Goldfuss ). — Tentacles of two kinds, the superior scattered and 
in several rows. 
2. Tdbularia (Pallas ). — -Tentacles of tivo kinds, in two series. 
3. Syncoryna (Ehrenberg ). — Tentacles alike, in several series. 
