278 
ZOOLOGICAL LITERATURE. 
from the water, and stands opposite to the needle. In this way 
he found that if a horn be blown, the sound could be distinctly 
heard in the water. 
Under these conditions. Dr. Hensen found that a certain 
auditory hair* which only vibrates under one sound, will, under 
a different note, shake to the very base so powerfully that it 
cannot be distinctly observed, and that as soon as the sound 
ceases the movement also eeases. But if at the same time one 
looks at another hair, it will under that peculiar note be found 
to be standing quite still, or be only gently moving, and that 
it can in its tmm, by another note of the seale, be brought into 
strong motion. 
To illustrate the extent to which Dr. Hensen believes this to 
be capable of being carried, he has drawn up a scale of musical 
notes, adapted for the various sorts of hairs which belong to 
this sense. 
Maiid^. 
Pugettia lordn, sp, n., Spence Bate, Proc. Zool. Soc. 1864, p. 662, from 
Vancouver’s Island to San Francisco. 
Eurypodid^. 
Oregmia longimana, sp. n., Spence Bate, Proc. Zool. Soc. 1864, p. 663, 
from Vancouver’s Island. 
Canceridaj. 
Platycarcinus recurvidens, sp. n., Spence Bate, Proc. Zool. Soc. 1864, p. 663, 
from Vancouver’s Island. 
Xanthii)^. 
Chlorodms imbricatus, sp. n., Spence Bate, Proc. Zool. Soc. 1864, p. 664, 
from Vancouver’s Island. 
ANOMURA. 
Homolid^. 
Cryptolithodes typicus (Brandt). Mr. Spence Bate describes the male of 
this species (Proc. Zool. Soc. 1864, p. 664). 
Cryptolithodes alta-fissura, sp. n., Spence Bate, 1. c. p. 666, from Vancouver’s 
Island. 
Petalocerus hicornis, sp. n., Spence Bate, 1. c. p. 666, from Vancouver’s 
Island. 
GALATHEIDiE. 
The Rev. A. M. Norman, Trans. Tyneside Nat. Field Club, says that 
Galathea dispersa (Spence Bate) is clearly synonymous with Galathea inter- 
media (Kroyer). 
* It should be understood that the organs that Dr. Hensen calls auditory 
hairs are not those to which Mr. Spence Bate had given the name of auditory 
cilia. These latter are membranous appendages that Dr. Hensen believes have 
nothing whatever to do with the power of hearijig. 
