Barzr.—Hydroids from the New Zealand Coast. 243 
Thuiaria bicalycula (Coughtrey). (Fig. 9.) 
Hydrallmania (1) bicalycula Coughtrey, ae E 301; 1876, p. 29. 
Hydrallmania bicalycula Farquhar, 1896, 
Hydrocaulus monosiphonic, бт ат pinnate. Stem thick, 
fistulous, divided into internodes of variable length, each bearing from 
1 to 6 pairs of hydrothecae. Pinnae rather irregular, alternate to sub- 
alternate, rarely opposite, stout, divergent nearly at right angles, borne 
on rather short thick apophyses ; petu. internodes very long, bearing 
up to 16-18 pairs of hydrothecae, one or two distal internodes with few 
vertical upper portion turned outward and narrow aperture vertical, 
widened laterally, with two lateral lobes, facing дик зыл and forward ; 
a large smooth wide tooth inside lower margin. 
Ето. 9.—Thuiaria bicalycula (Coughtrey): stem and pinna. х 40. 
Gonothecae abundant on the pinnae, large, length 0-13 in., width 0-8 in., 
urceolate, mouth small, round, entire, on a short simple neck; on the 
widest part of the capsule, about one-fourth of its length from mouth, is 
a faint rim; capsule subpedicellate. (Coughtrey.) 
There is little doubt that this is the same as Coughtrey’s species, though 
the original specimen seems to have been more a, "passi says 
that the stem, close to its origin, gives off from 8 to shoots, which, 
within an inch, bifurcate into long flexuous branchlets "à in. long. In our 
this arrangement preponderates to such an extent as to be fairly considered 
typical, irregularities are frequent, and in a few cases the pinnae are 
opposite. 
The species is nearly allied to T. tuba (Bale), but the stems and pinnae 
are very much stouter, hydrothecae are much larger and generally face 
