Natural History of East Finmark. 101 
A pair of avicularia with mandible pointing upwards are 
often developed on the side walls of the oral opening. 
Oocecia subglobose and imperforated. No pore-chambers. 
Gephyrotes nitido-punctata (Smitt). (Pl. VIII. figs. 12, 13.) 
1868. Escharipora figularis, forma nitido-punctata, Smitt, “ Kritisk 
Forteckning, &c.” p. 4, pl. xxiv. figs. 2, 3. 
1873. Cribrilina nitido-punctata, Smitt, Floridan Bryozoa, pt. 2, p. 22. 
1895. Cribrilina nitido-punctata, Nordgaard, Bergen Mus. Aarbog, 
1894-95, p. 19, pl. iv. fig. 3. 
The type specimens of this fine species described by Simitt 
were taken by Lovén in 40-60 fathoms at Hammerfest. 
Examples in my own collection are from the Bergen Fiord, 
where I found it to be not uncommon in 1878, and West 
Greenland, ‘ Valorous,’ 1875*. Nordgaard has also re- 
cordcd it from the Trondhjem Fiord. 
Genus CrisriLina, Gray. 
Type, Cribrilina punctata (Hassall). 
Gray in instituting this genus placed only one species 
in it, namely Lepralia punctata, Hassall, which, therefore, 
must be the type of the genus. Yet, notwithstanding this, 
Hincks, in his paper ‘On the Classification of the British 
Polyzoa” (Ann. & Mag. Nat. Hist., Feb. 1879), substituted 
“ Cribrilina, Gray. Type, C. radiata.’ The next step to 
confusion was taken by Jullien, who, in his paper on “ Costu- 
lides”’ (=Cribrilinidee), instituted a large number of genera, 
and, describing Cribrilina, followed Hincks in making 
C. radiata the type, and then gave to that genus characters 
which would exclude the true type, C. punctata, from it! 
Such is the unfortunate result here, as in so many other 
instances among the Polyzoa, of the disregard of the simplest 
laws of nomeuclature ! : 
Cribrilina punctata, Hassall.—I have already noticed some 
of the variations in the structure of the zocecium of this 
species. The zoaria are of small size, rarely reaching as 
much as half an inch in diameter. ‘The avicularia, when 
developed, are usually only on one side of the oral opening, 
rarely on both sides. Oral opening with lower hip not 
greatly thickened but generally centrally produced, often 
acutely so. Oral spines four. In cells bearing ocecia two 
lateral spines often remain and attain a great size, arching 
forwards and upwards. Ocecium large, globose (see Hincks, 
#* On the same stone with a specimen of this species was also Rhab- 
dopleura Normani, Allman, a genus which is an interesting addition to 
the fauna of Greenland, 
