BRYOZOA FROM FRANZ-JOSEF LAND. 91 
row of small pores round the zocecium, and the surface of the 
zocecia and ovicells is finely granulated. The larve are large 
and are more fully developed within the ovicell than is usual ; in 
fact, I have not come upon larve as largely developed in any 
other species, the corona and cilia being very distinct. A sketch 
(Pl. 12. fig. 5) of a free swimming larva of Schizoporella unicornis, 
Johnst., is given for comparison of the size. 
There are 21 tentacles; while in a Mediterranean Phylactella, 
which is probably a variety of collaris, there are 15 tentacles. 
In the aperture there is a wide lyrula. 
Loc. Spitzbergen (Sm.) ; Kara Sea (Sm. df Lev.), 40-125 fath. ; 
Barents Sea, 160 fath. (H#.); Finland (Sm.). 
Jackson-Harmsworth Exp.: off glacier between Cape Flora 
and Cape Gertrude, about 30 fath.; lat. 77° 55’ N., long. 55° 25’ E., 
iietasae-) late 772 55 INey lone. 55. 20° EK.) and 55> 16 “E., 
130 fath. 
RHAMPHOSTOMELILA. 
Has a very narrow lyrula, and the fact of its presence indicates 
the relationship with Smttia, and probably it must be placed in 
the family Smittiide. The operculum is thin and delicate, as in 
Smittia, but there is a raised circular ridge reminding us some- 
what of the operculum of Membranipora hians, Hincks. ‘The 
mandibles in some characters approach to those cf some Cellepore, 
as C. pertusa, Smitt. 
53. RuaMPHOSTOMELLA CosTaTa, Lorenz. (P1.11. figs. 26, 27; 
2 tos. 1625) 
Cellepora scabra, Smitt, “Krit. Fort.” 1867, pp. 30 & 181, pl. xxviii. 
figs. 186 & 188. 
Rhamphostomella costata, Lorenz, Bry. von Jan Mayen, p. 94, pl. vil. 
fig. 11 (in error 12 in text); Hincks, Ann. Mag. Nat. Hist. ser. 6, vol. iil. 
p- 426, pl. xxi. figs. 6, 7, 8. 
In the Franz-Josef Land specimens, there is a small lyrula, 
which is slightly bifid, and the suboral rostrum sometimes spreads 
out at the top as described by Hincks. The gigantic avicularia 
described by Hincks are very abundant, but the rostral avicularia 
are usually smaller than in my specimen from the Gulf of St, 
Lawrence, while the gigantic avicularia are more recumbent. 
There are no oral spines in the specimens examined, There are 
18 tentacles ; and the oral glands are well-developed, consisting of 
two parts: the first, the pendulous part arising from close to the 
diaphragm (figs. 1, 2), shows no distinct structure, though there 
