24 Records of the Indian Museum. [Vows ve 
hydrothecee or hydroclades, it is divided by faint nodes into four 
internodes each of which bears a single median sarcotheca on its 
anterior surface. 
The minute characters of the hydrothece agree exactly with 
those given by Jaderholm. It is worthy of note that in some of the 
hydrothecze the internodal septa at the base of the supracalycine 
nematophores and opposite the intrathecal partition are much more 
strongly developed than Jaderholm’s figure shows, while a third 
septum is occasionally visible stretching across the thecate inter- 
node close to its proximal end. One end of this septum rests 
on a knob of chitin projecting from the abcauline wall of the 
internode. In these details our specimens vary somewhat as did 
those described by Billard (1907 (2), p. 366). 
The gonosome is not present but through its occurrence in 
specimens described by him Billard transferred the species from 
Lytocarpus to Halicornarnia., 
Measurements. 
Hydroclade, iength .. ae oe I—3 mm. 
oe internode, length .. 0°29—0°33 _,, 
Hydrotheca, diameter ; sie O:Oliy a, 
= si of mouth, side 
to side tee, ORT —OL3= 1h 
A + © Ft ADACK 
to front .. 0o°08—o'1o 
LocaLity: Andaman Islands, 1899 ; 60 fathoms. 
Distribution.—This species has seldom been recorded, but its 
distribution appears to be Indo-Pacific, for it has been found off 
South Japan (Jaderholm, 1903); at Ternate, in Oceania (figured 
by Campenhausen, 1897, pl. xv, fig. 3); on the south-east coast 
of Africa, at Macalonga and Mozambique (Billard, 1907 (2) ); and 
the present record adds it to the fauna of India. 
Halicornaria hians, Busk, var. profunda, Ritchie. 
(Plein ties 12 4s) 
Bale, W. M., 1884, p. 179, pl. xiii, fig. 6 ; pl. xvi, fig.7, H. /uans, 
typicus. 
Ritchie, J., 1909 (2), p. 528. 
The longest of the few colonies in the collection was only 4 cm. 
in height, with monosiphonic, unbranched stem, divided into inter- 
nodes bearing generally two, occasionally three, alternate hydro- 
clades. Each hydroclade is divided into thecate internodes twice 
as long as broad near the stem, but gradually becoming longer and 
more slender as they recede from it, until at the distal end of a 
hydroclade their length may be to their breadth as four to one. 
The hydrothecee are deep, with a margin divided on each side 
into three lobes, of which the superior and the median are the 
