BaLe.—Hydroids from the New Zealand Coast. 235 
there is nothing in the account of either species which ir 2 apply 
the other, except the description of the pedicels, which a to be 
smooth in H. bilabiata, but to have occasional sharp Анн in 
asymmetrica. In reality H. bilabiata is equally subject to these irregu- 
larities, which simply indicate the points at which regeneration has 
occurred. The distinction between these two species, at least so far as 
hydrothecae and hydranths. The former, in H. bilabiata, often attain 
lmm. in length ; in S. campanularia, which I consider identical with 
H. asymmetrica, I do not find the largest to a, about 0-67 mm., 
either in Australian еее or in Professor Chilton's. The hydro- 
thecae of S. bilabiata are, as a rule, longer in eo piel to their width 
than those of the piher ets and the gonangia are longer and more 
erect. 
.Hartlaub mentions that he found his specimens intermixed with 
his Eucopella crenata, so that at first it appeared that the two forms of 
hydrothecae belonged to the same hydroid; on further examination, how- 
ever, he traced them to two different hydrorhiz zas growing together. No 
doubt it was a similar association which led von Lendenfeld to describe 
the hydrothecae of S. campanularia and an Orthopyzis (perhaps О. com- 
pressa) as forms of one species. .In the present collection O. crenata and 
ompany. 
Loc.—Kuri Beach (Hilgendorf) : French Pass (Hartlaub): Lyttelton 
Harbour (Chilton): Port Philip; Port Jackson; ? Falkland Islands 
(Hartlaub). 
Fam. LAFOEIDAE. 
Hebella calcarata (L. Agassiz). 
р. 758 
Hebella scandens Farquhar, 1896, p p. 460: Bale, 1913, p. 117. 
Hebella calcarata Bale, 1915, р. 25] (synonymy). 
Fam. HALECIIDAE. 
Halecium delicatulum Coughtrey. 
imeem delicatula Coughtrey, 1875, p. 299; 1876, p. 26: Farquhar, 1896, 
Нина delicatulum een 1881, p. 103: Hartlaub, 1901, p. 368; 1905, p. 613: 
Stechow, 1913, p. 7 
Recorded by "yeh Lon French Pass, and by Ridley from Punta 
enas. Ridley describes the gonangia. 
Halecium parvulum Bale. 
H. parvulum and H. gracile are now commonly regarded as synonyms 
of H. flexile Allman. (See Bale, 1915, p. 246.) 
Fam. CAMPANULINIDAE. 
Campanulina humilis n. sp. (Fig. 5.) 
Hydrorhiza filiform, delicate, giving rise to numerous slender closely- 
undulated pedicels, each supporting a single hydrotheca ; pedicel expanding 
gradually to base of hydrotheca. 
