244 Transactions. 
more forward, and the internal tooth is characteristic. The stems and 
pinnae are so thick that the tips of hydrothecae often project only slightly, 
or not at all, beyond them, and they are mostly not constricted between 
the pairs of hydrothecae. The pinnae do not generally run out into tendrils 
and anastomose, as in T. tuba, but I have seen instances. 
part is near the middle. . 
I noticed in one shoot an interesting abnormality in the arrangement 
of the hydrothecae on the stem: a gradual transition occurred from the 
Coughtrey described it. 
‚ Loc.—Wickliff Bay, Bluff Harbour (Coughtrey): Cape Maria van 
Diemen, ten miles north, 50 fathoms (Chilton). 
Fio. 10.—Thuiaria farquhari n. sp. X 40. 
Thuiaria farquhari n. sp. (Fig. 10.) 
Hydrocaulus short, monosiphonic, pinnate, divided into short internodes, 
bearing 1-3 (mostly 2) pairs of hydrothecae. Pinnae quite irregular, o> 
