Natural [istory of East Finmark. 115 
I have given Hincks’s Monoporella spinulifera, var. pre- 
clara, as a synonym, under the assumption that he over- 
looked a deep-seated avicularium, the presence of which, 
however, appears to be indicated by the umbo-like swelling 
below the oral opening which he described and figured. 
Taken by the ‘ Valorous,’ 1875, off Holsteinborg, W. Green- 
land, in 57 fathoms. 
Genus Monoporetia, Hincks, 1881. 
Type, Monoporella nodulifera, Hincks. 
Monoporella spinulifera, Hincks. 
1889. Mucronella spinulifera, Hincks, ‘The Polyzoa of the St. Law- 
rence,” Ann. & Mag. Nat. Hist. ser. 6, vol. iil. p. 451, pl. xxi. fig. 3, 
and Monoporella spinulifera, vol. ix. p. 152 (but not var. preclara). 
Hincks was quite right in making Discopora cruenta, 
Smitt (but not Schzzoporella cruenta (Norman)), a synonym 
of this species, which I have in my collection from the Gulf 
of St. Lawrence (Whiteaves) ; Greenland, off Holsteinborg, 
57 fathoms (‘ Valorons,’ 1875) ; and Spitsbergen, lat. 76° 41’ 
N., long. 10° E., im 100-120 fathoms, as ‘“ Discopora cru- 
enta,”’ from Smitt; and other specimens from Spitsbergen 
named “ Porina ciliata, forma dura,” from Smitt. I cannot 
understand how Mr. Waters (“ Bryozoa Franz-Josef Land,” 
Journ. Linn. Soc., Zool. vol. xxvii. 1900, p. 73) can have 
reverted again to Smitt’s mistaken name, and included 
Monoporella spinulifera under Lepralia cruenta ; apart from 
all other differences, the front wall of the former is always 
entire and imperforated, the latter at all ages of growth has 
the front wall punctate, its oral opening is quite different, 
and it never has the little spine-point on the lower lip, which, 
though so insignificant in size, is a very marked characteristic 
of spinulifera. 
Cryptic Owcia. 
I have in this paper described an ocecium in Cribrilina 
cryptocecium which becomes completely covered with over- 
growth except the frontal arch, and Levinsen (“ Studies of 
Bryozoa,” p. 12) refers to other species which have what he 
terms “‘ ocecia covered by kenozocecia”’ ; but in all these cases 
the ocecia are in the early stage on the surface of the zoarium 
and clearly seen. ‘The character of the ocecia I am about to 
call attention to is entirely different. They belong to species 
of which no occia were previously known, and can only be 
found by partial decalcification of the frontal wall, when they 
