1880. } Zoology. 215 
giving segments of the latter being perfectly represented in the 
Longicorns, although destitute of phosphorescent power.” 
The Report of the Commissioners of Fisheries of California for 
1878 and ’79, contains numerous and valuable notes on the foo 
fishes of San Francisco by W. N. Lockington. The Journal 
of the Royal Microscopical Society reports the discovery of an 
Otocyst-like organ in the antenne of flies (Syrphus, etc.). There 
seems little doubt but that many Diptera (Muscide and Tabanidzx 
excepted) have these minute ears situated in the third joint of 
their antenne. Mayer, however, questions whether these organs, 
of which he claims to have found fifty in the antenna of Musca 
vomitoria, are ears, though he regards them as organs of some 
sense. Dr. H. Krauss finds an otocyst in the larva and imago of 
Tabanus, the horse-fly. r. H. Burmeister discovers that the 
fine longitudinal lines or striz of butterfly scales belong to the 
some interesting experiments on the nervous system of the cray- 
fish? He arrives at the conclusions from cutting the nervous 
—— The “Arbeiten ” of the Zodlogical Institute of Vienna, Vol. 1, 
Part 11, 1879, contains a revision of the known genera and species 
of the Platyscellidae (Crustacea Amphipoda), and a description of 
a new Siphonophore from the Mediterranean by Carl Claus. 
—Mr. Gibbes? has been making some investigations regarding 
the structure of the spermatozoa, and finds that the head, from 
its reaction with coloring agents, possesses a different chemical 
Structure from the rest of the organism. A filament was found 
to arise at the base of the head, in all the animals examined, which 
is Some notes on the Physiology of the Nervous System of the Crayfish. Journal of 
ysiology, Vol. 11, pp. 214-227. j o 
J *On the Structure of the Vertebrate Spermatozodn, by Heneage Gibbes. Quar. 
our. Micro. Sci., Oct., 1879, pp. 487-491, pl. XXIV. : o 
