742 General Notes. [September, 
tem of the higher animals? It was thought by the late,Professor . 
H. J. Clark (see his “ Mind in Nature”’) that the higher Infusoria had 
a nervous system or something analogous to it. Engelmann now 
says (Journal of the Royal Microscopical Society for April) that 
the Infusorian, Stylonychia mytilus, has unquestionably a system 
of ventral fibers trending from near the middle line, beneath the 
ectoplasm, to the two conspicuous series of large admarginal cilia, 
has its own fiber, which is pale, soft, homogeneous, and not more 
than 0.2» across. The fibers are parallel and so delicate that they 
can only be seen for a short time in specimens starved during 
some hours in filtered water, and then killed in osmic acid. re 
not these fibers truly nerves ?. Why, asks Engelmann, should not 
the higher Infusoria possess a nervous system? May not more 
exact researches soon decide this question in the affirmative? 
Has not Panophrys flava eyes? If not so what is the function of 
the watch glass-shaped organ with its pigment-spot ? 
New Genera or Currie Fisnes.—In the Transactions of the . 
Danish Academy of Science, Professor Steenstrup describes two 
interesting genera allied to Sepia, under the name of Sepiadarium 
kochii and Idiosepius pygm@us. They inhabit the Indian ocean. 
One of the arms of the 4th ventral pair in the males is adapted 
to serve as a fertilizing organ (a hectocotyle), the female recelving 
the spermatophores on the internal face of the buccal membrane. 
The distinguished author closes his memoir with a comparative 
view of all the known genera of Myopsidan cephalopods. 
NOTE REGARDING CHANGE OF COLOR IN DIAPTOMUS SANGUINEUS. 
—I visited the Glendale pond July 27th, and found thick swarms 
of this Copepod. Only a few had egg-sacs, and no male was 
found ; while the females were not red, but bluish. The antenn® 
had remained red, also the furca, but the postabdomen was yel- 
low, and the body and legs bluish—C. F. Giss/er. 
New DiscovertEs CONCERNING DeEP-SEA CRUSTACEA OF THE 
Gutr oF Mexico.—Additional information of a good deal of in- 
terest has since our last note on this subject been published by 
A. Milne Edwards. From an abstract in the Yournal of the 
Royal Microscopical Society, it appears that forty new genet 
types were discovered, while certain groups which had been sup- 
posed to be absent from the American seas are very richly repre" 
sented at these great depths, Crabs proper disappear below 500° 
meters from the surface: at 800 meters, however, there was found — 
Bathyplax, which takes the place of Gonoplax of the French coast, 
_ but it is blind. Representatives of Willemoesia were found. a 
_ 3500 meters, and these too were blind. ce 
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