444 Rev. Canon Norman—aA JVonth on 
“ Fam. II. Cynthiade. 
“ Subfam. Sryezrvz. 
“9. Polycarpa pomaria, Sav. (?). 
“ About two dozen specimens from Rédberg, 150-250 
fathoms, and several from Bergen Fiord (A. JZ. N., 1878). 
These agree in almost all anatomical details with British 
specimens of P. pomaria, but the branchial sac has no inter- 
mediate horizontal membrane across the meshes. However, 
I do not lay great stress upon this, and I feel pretty sure that 
the specimens belong to Polycarpa pomaria. 
3. Polycarpa pusilla, Herdman *. 
“ Four specimens from Rédberg, 250-300 fathoms, and 
one specimen (in regard to which I am still a little in doubt) 
from Trondhjem, shallow water. ‘This species was only pre- 
viously known from the North Atlantic, 40 miles off Valentia, 
Ireland, 110 fathoms. 
“Fam. III. Ascidiide. 
“A, Ascidia compressa, O. F. Miill. 
“Three specimens from ‘Trondhjem, 20 fathoms, and Réd- 
berg, 40-70 fathoms, and one from Rédberg, 20-40 fathoms. 
These are all rather small, an inch to an inch and a half in 
length, but agree well with large specimens from the north of 
Norway. They have the pharyngo-cloacal slit in the 
branchial sac like that of A. mentula. [am inclined to think 
that the A. obligua of Alder may be this species, and 
A. faleigera, Herdman, from off Nova Scotia is at least very 
closely related. 
“5. Ascidia plebeia, Alder. 
“Two specimens, about half an inch long, from Trondhjem, 
shallow water. Also two smaller specimens, in regard to 
which I have some doubt, from Rédberg, 100-200 fathoms. 
‘There are also a few other small Ascidians, which I consider 
too young to identify with certainty. 
“6. Ascidiella venosa, O. F. Mill. 
“'Trondhjem, shallow water. 
* “ Report Tunicata ‘Lightning’ and ‘Porcupine’ Expeds.,” Trans. Roy. 
Soc. Edin. vol. xxxii. 1884, p. 224, pl. xxxv. figs. 4-6. 
