264 University of California Publications. | ZOOLOGY 
laria (lat. av.) small and inconspicuous, placed a little below 
the top of the zowcium, with a rounded mandible; frontal avicu- 
laria (fr. av.) raised, two below the aperture, placed one on 
each side, or sometimes only one; mandible rounded, directed 
downwards. Vibracula very long, serrate (v.). Owcia flattened, 
frequently with a depressed, smooth, semicircular space in front 
from which fine striae radiate to the margin. footlets arise 
from the side of the vibracular chamber, the two on opposite 
sides uniting in the median dorsal line with each other and with 
those below, forming a thick keel-like cable along the dorsal sur- 
face of the branches (fig. 46, 7.). At the base of the colony 
the threads become free and attach themselves independently to 
particles of sand or to whatever forms the substratum. 
A small quantity of C. ellisi was dredged in 20 fathoms at 
Juneau. It is reported also from Queen Charlotte Islands. 
Bicellariidae Busk. 
Bicellariade Busk, 1852. 
Bicellariee Smitt, 1867. 
Bicellariide, Hincks, 1880. 
Zoarium erect, with or without articulated stem or pedunele, 
or composed of a number of zocecia connected by tubular pro- 
cesses. Zowcia rather loosely united in one, two, or more series, 
or disjunct, boat-shaped or sub-tubular; aperture occupying a 
large proportion of the front. Avicularia, when present, capi- 
tate, pedunculated, and articulated. Owcia either pedunculated 
or sessile. 
The diagnosis of the family Bicellartidw as given by Hincks 
is here revised in order to include the genus Stirparia Goldstein. 
This genus is fairly abundant on this coast, and unlike the other 
members of the family possesses a jointed stem of varying length 
surmounted by delicate feathery tufts of zoccia. 
KEY TO THE GENERA OF BICELLARIIDAS. 
COW O ray ae LCC ex os reese eee ee ce ee 
Goloniy:. ereeprin ce 526 eee a i ence eee 
Gollomy,-wumsiialle dy Bee ac ee 
Gollomiy; stevie aa a ee eee 
FioceGlan HUIS err | cone sears 5 eee en ee ee ee Corynoporella 
Fomeia. i= wOr Mla SO rey eee cease eee ree ee eae nate ee Bugula 
PO CGA WWUSCTUE UN See aN rer ee ee See ee Stirparia 
Zoewcia uni- or multiserial, with tubular connections ................ Beania 
H® Co O1 bo 
OUR 99 69 PO DO 
~  l 
— 
