BRYOZOA FROM FRANZ-JOSEF LAND. 49 
CRIBRILINA MONOCEROS, Busk, is given from Station 253, 
from a depth of 3125 fathoms; but my attention has been called 
to the fact that at this depth the calcareous shell would have been 
dissolved, and probably a mistake has been made in labelling. 
BEANIA MAGELLANICA, Busk, has a very wide distribution, and 
has not yet been found near the Arctic regions; but, on the 
other hand, occurs in the Tropics, off Cape Verd, thus removing 
it from the list. 
ESCHAROIDES VERRUCULATA, Busk, collected by the ‘ Chal- 
lenger’ from Heard Island, I have again examined, and find it is 
the Rhynchopora longirostris, Hincks, and not the same as the 
Cellepora verruculata, Smitt, from Florida. 
In my paper on Membraniporide * I showed that Mempranr- 
PORA CRASSIMARGINATA, Var. INCRUSTANS, Busk, so far as con- 
cerned one specimen, was J. lineata, L.; another specimen 
was what I have named MW. incrustans ; while one poor specimen 
probably is MW. crassemarginata, H.; and if this is the case, then 
the distribution thereof is Naples, Capri, Villefranche-sur-Mer, 
_ Madeira, Tizard (China Sea) (Kirkpatrick), Tristan da Cunha 
(Chall.), and a variety from Japan, so that it is confined to 
temperate seas. 
_ Membranipora perfragilis, H., to which some of the < Chal- 
lenger’ specimens named erassimarginata really belong, has a 
distribution from South to North Australia, on to Japan, and also 
Heard Island (Indian Ocean), thus occurring in both hemi- 
‘spheres and the tropics. 
With regard to MEMBRANIPORA GALATEA, var. multifida, Busk, 
from off the Azores, I came to the conclusion, on an examina- 
tion some time ago, that this was not correctly placed, but 
did not made a note of this at the last re-examination of 
‘Challenger’ specimens. J have not critically examined the 
KIneEroskKias cyatHus, W. Thoms., but the two localities of 
the ‘ Challenger’ are in temperate seas, not far from the tropics. 
The less we say about the Cyclostomata the better, as there is 
much uncertainty about their determination, and without good 
specimens with well-preserved ovicells we may go astray, and 
many of the ‘Challenger’ determinations had to be made from 
single and not very satisfactory specimens. The “ Hornera 
LICHENOIDES,” Pont., from the South Atlantic, off the River 
Plate, has very pronounced ridges with ribs across, and it 
* Journ. Linn. Soc., Zool. vol. xxvi. p. 686, 
LINN. JOURN.— ZOOLOGY, VOL. XXVIII. 4, 
