28 
ZOOLOGY OF THE FAR EAST. 
Arachnidiidae. 
Paludicellidae . 
as a fairly conspicuous object even in very badly preserved specimens. There is 
some reason, therefore, to doubt whether Harmer's marine species Arachnoidea pro- 
tecta (pp. cit., p. 50, pi. iii, figs. 7-1 1) is really co-generic, notwithstanding the very 
close external resemblances, with A. ray-lankesteri from Lake Tanganyika. 
I would, therefore, arrange the families of the Division Paludicellea as follows, 
basing their classification on the structure of the polypide as well as the form of the 
zooecium : — 
I. Alimentary canal of simple structure, cardiac limb of 
stomach undifferentiated. 
A. Zooecia broad, flattened, adherent, with the 
orifice situated on a tubercle or short upright 
tubule ; no funiculus . . 
B. Zooecia relatively narrow, either entirely verti- 
cal or bearing a comparatively long, vertical 
orificial tubule ; two funiculi 
II. Alimentary canal more highly specialized in the cardiac 
region. 
A. Cardiac region of the alimentary canal with an 
antechamber ( always ? ) lined with chitin ; no 
proventriculus ; adult zooecia vertical and 
tubular ; a single funiculus. 
1. Base of zooecia swollen or slipper-shaped 
2. Base of zooecium sharply constricted off 
from the false rhizomes by which it is 
connected with other zooecia 
B. Cardiac region of alimentary canal with a pro- 
ventriculus and a spherical chamber lined with 
thick chitin ; no funiculus. 
Zooecia flattened and adherent, with or 
without a hifrh orificial tubule . . Hislopiidae. 
ViCTOREi/i/iDAE. 
Cylindroeciidae . 
Family PALUDICELLIDAE. 
Genus Paludicella, Gervais. 
1887. Paludicella, Kraepelin, Deutsch. Silsswasserbryozoen I, p.. 96. 
1913. Paludicella, Harmer, Proc. Zool. Soc. London III, p. 441. 
1914. Paludicella, Braem, Arch. f. Hydrohiol. IX, p. 456. 
Recent authors have recognized a single species in this genus, namely Paludicella 
articulata (Ehrenberg) = P. ehrenbergii , v. Beneden. I have here, however, to revive 
a second usually relegated to the synonomy of that species and to describe a third— 
the latter a very distinct form. A fourth species, or what I believe to be a fourth 
species, occurs in Japan and will shortly be described by Prof. A. Oka. 
The genus is probably cosmopolitan but has not yet been found in India, unless 
