BRYOZOA FROM FRANZ-JOSEF LAND. 63 
allowed me to examine the specimens in the British Museum 
collections. 
Mr. Busk, however, in the Journal of this Society (vol. xv. 
p- 237), when describing Arctie Escharoides Sarsii, Sm., says it 
was collected in the Antarctic by the ‘ Erebus’ and ‘Terror,’ “ and 
was accompanied in the same collection by two other Arctic 
species.” That a single haul so far south—in fact the farthest 
south from which any Bryozoa have been found—should furnish 
three of the commonest Arctic species, two of which have prob- 
ably not been found outside the Arctic regions, seems so strange 
that we must pause and consider if there is no possibility of a 
mistake. This would be stronger proof of bipolarity of species 
than has yet been brought forward, and as much as the most 
ardent believers in the theory could expect. 
Unless the present Antarctic expeditions should bring back 
some of these species, we shall be justified in thinking that there 
has been some change of label or exchange of box. As Sir John 
Ross had been in the Arctic regions, there is the possibility of 
this exchange having occurred on board the ship, or it may have 
happened subsequently in Mr. Busk’s hands. 
There are several specimens of mites in the Escharoides, and 
although the probability was so great that their origin was 
Lordon, I asked my friend Mr. A. D. Michael if they could 
throw any light upon whether the Bryozoa came from the Arctic 
or Antarctic. He informed me that the specimens were immature 
Glyciphagus domesticus, de Geer, which is cosmopolitan, and 
therefore it does not help to settle the pomt. Mr. Michael 
informs me that this species had been found by the Jackson- 
Harmsworth expedition on the rocks some distance from the 
station, aud that a drawing had been made of it at the time. 
Often specimens of Bryozoa are so full of diatoms that a question 
of doubtful origin could be settled by an examination of sections, 
but unfortunately there do not seem to be either foraminifera 
or diatoms to give us the geographical origin. 
The occurrence of this Cribrilina identical with the Arctic 
form is of more importance than that of either H. lichenoides or 
E. Sarsii, being more highly differentiated, or at least having more 
distinctive characters. 
- Loc. Bohus Bay (Smiét) ; littoral, Norway (Smztt); Gullmaren, 
7-10 fathoms. 
Jackson-Harmsworth Exp.: Lat. 77°55 N., long. 58°16’ E., 
130 fathoms. 
