52 MR. A. W. WATERS ON 
in Brettia. Hincks made a genus Corynoporella for a species 
somewhat similar to the present, but with an articulated 
avicularium at the side of the aperture. Probably the genus is 
superfluous. 
Loc. Off Cape Mary Harmsworth, 53-93 fathoms; Cape 
Flora off West Bay, 8 fath.; lat. 77° 55’ N., long. 53° 20' B., 
130 fath. 
8. BRETTIA MINIMA, sp.nov. (PI. 7. figs. 5-7.) 
The zoccia are longer and more delicate than in B. frigida, W., 
and the area occupies about one-third of the length of the 
zoccium. The branching takes places frequently, with an 
interval of one or two zocecia, and spread out at a considerable 
angle, nearly at a right angle, much in the same way as in 
Alysidium Lafontii, Aud., so that B. minima can be distinguished 
from B. frigida withoué a lens. 
The radicles start from the dorsal surface at the distal end. 
Loc. Jackson-Harmsworth Exp.: Cape Mary Harmsworth, 
53-93 fathoms. 
4. Buauta Murrayana, Johnst. 
From Franz-Josef Land there are specimens of characteristic 
B. Murrayana, and others of characteristic B. fruticosa, Pack. ; 
but there are many intermediate forms which make separation 
difficult, though perhaps there are other characters not yet 
noticed by which they can be distinguished. 
A typical specimen from off Cape Mary Harmsworth has 
about six marginal spines on each side, larger avicularia to the 
marginal zocecia; the central avicularia are shorter than in the 
jruticosa variety. The branches are composed of 6 or more 
zoccia to arow. Another specimen from the same locality has 
3-4 zovecia to a row, marginal avicularia and a few marginal 
spines, some zocecia having none. A small fragment also from 
the same place bas 8-9 marginal spines. This is in a uni-bilateral 
condition, but is probably torn from a larger piece. 
From near Wilezek Land, 127 fathoms, there is a Bugula 
with marginal avicularia, no bordering spines, two pairs of distal 
spines. The branches are not broad, and the zoccia are often 
but Joosely attached, and in several cases a zocecium grows out 
laterally from the radicular disk. In one or two cases a tubular 
growth springs from the distal end of the zocecium, and from the 
end of this elongated tube grows an ordinary zoecium. In 
