1879. | | Zoology. 455 
$ s 
Two CHRYSALIDS IN THE SAME Cocoon.—Another fact noticed 
in the examination of the cocoons just referred to surprised me. 
The first opened, a perforated one, contained two cast larval skins, 
perfect. I cut into it and found two cast larval skins and two 
perfect pupæ. I could come to no other conclusion than that in 
specimens, Desirous to obtain some confirmation of this singular 
state of things, I inquired of a very intelligent Spanish gentleman 
formerly engaged in silk raising, and learned that while he could 
not remember having seen two worms actually engaged in form- 
ing the same cocoon, he had frequently observed two climbing 
simultaneously into the same twig and was very ready to believe 
that when once they had attached their threads to spin, neither 
would give way, and they thus became enveloped in the same 
toils. It was therefore his idea that it was rivalry in the search 
of a favorable location rather than any anticipatory sense of sexual 
attraction which had led them into these intimate relations. It 
is much to be hoped that the attention of other observers may 
during the coming season be directed to a further examination of 
the above facts, which, so far, I have been unable to find record- 
ed.— Edward Potts. 
w Deep-Sea Fisurs—The researches conducted by the 
United States Fish Commission under the direction of Professor 
Baird, has resulted in the addition of a large number of species 
to the fauna of the eastern coast of our country. These: have 
been mostly described by Messrs. G. B. Goode and T. H. Bean, 
whose full and careful diagnoses are valuable additions to ichthy- 
ology. At present we notice only those obtained at great depths, 
since these claim especial interest of the presenttime. The earliest 
of these discoveries was that of a new Chimera from near the La 
, which was named by Professor Gill 
C. plumbea. The. Arctic Reinhardtius hippoglossoides has been 
found at depths below 200 fathoms in the same latitude with the 
acrurus rupestris. A new Macrurus from deep water off Cape 
Ann is called M. dairdi. New species of Phycis and Haloporphyrus 
also represent the Anacanthint. Several specimens of Alepido- 
saurus ferox have been taken off the same coast between lats. 41° 
and 44° at depths of from 200 to 400 fathoms. 
_ The most important additions to deep-sea ichthyology ever | 
made is the collection of the Ciallenger expedition, upon which | 
a preliminary report was published about a year ago by Dr. | 
