180 THE MOSS-ANIMALS, 
was as docile as the young chimpanzee, which I also saw. 
It has been asserted, however, on good authority, that 
the young gorilla is sometimes perfectly untamable. All 
the authorities upon the habits of the gorilla are cited by 
Professor Huxley in his “Man’s Pliks in Nature,” with 
the exception of a curious passage in Monboddo’s “Origin 
and Progress of Language” (vol. i. p. 281). M. Du Chail- 
lu, in his “Journey to Ashango Land,” also gives some 
details which are interesting, rather as tending to confirm 
what was previously known, than as throwing any new 
light upon the subject. 
In fact, there is nothing remarkable in the habits of 
the gorilla, nothing which broadly distinguishes it from 
the other African apes, nor even from the ourang outang, 
which also builds a nest, which also assumes the erect 
posture now and then, and which also charges when 
wounded or brought to bay. 
i 
THE MOSS-ANIMALS, OR FRESH WATER 
POLYZOA. 
PLATE 5. 
BY ALPHEUS HYATT. 
(Concluded from page 136. 
AutnoucH Fredericella has been snail particularly re- 
ferred to in the preceding Articles, they are, with one ex- 
ception, almost equally applicable to all of the Phylacto- 
lemata. This exception is the round disc, or lophophore, 
which in the other four genera changes to a horse shoe 
shape. (Compare Plate 3, fig. 4, with Plate 4, fig. 1.) 
These four have, like the Fredericella, very eupho- 
nious names, Plumatella, Pectinatella, Lophopus, and 
Cristatella ; and, while preserving a general identity, vary 
