Entomology. 937 
colossal nerve fibres given off from regularly arranged giant gang- 
lion cells. In both the supporting tissue is of ectodermal origin. 
FisHeEs.— Messrs. Jenkins and Everman discovered a new species 
of the genus Chologaster this summer in the outlet to Lake Drum- 
mond, in the dismal swamp of Virginia. The discovery is espe- 
cially interesting, as the genus is presumably the representative of 
the ancestors of the blind-fishes, Amblyopsis and Typhlichthys. 
Only their species of the genus — C. cornutus, C. papilliferus 
and C. qgassizii were known before, and these were represented 
by but few specimens. Jenkins and Evermann were fortu- 
nate in obtaining a considerable amount of material of the new 
species, 
Mammats.—Dr. Frederick Tuckerman describes the histological 
structure of the taste-organs of the bat, Vespertilio subulatus, in Vol. 
II. of the Journal of Morphology. 
Some years ago the greenish color of certain of the sloths was 
attributed to the presence of an alge upon the hair. Recently 
adam Weber von Bosse has described two genera and three 
species of these parasitic alge. The new genus Trichophilus is 
green, the other, Cyanoderma, with its two species is violet. From 
oo to 200,000 individuals of these algee may occur on a single 
air, 
ENTOMOLOGY. 
ScuppEr’s BUTTERFLIES oF New Encianp.’2—Thelong-looked- 
for work by Mr. Scudder, on the butterflies of New England, is 
about to appear. We are in receipt of a prospectus which includes 
sample pages and plates. Judging from this the work will su 
in fulness of detail and magnificence of illustration anything of the 
kind yet published ; and the scope of the work is an unusually 
broad one, including accounts of the structure of these insects in all 
stages of life, their variation, habits, manners, life-history, and 
their enemies ; also frequent discussions of problems suggested by 
their study. 
1 This department is edited by Professor J. H. Comstock, Cornell 
University, Ithaca, N. Y., to whom communications, books for notice, 
ete., should be sent. : 
The butterflies of the Eastern United States and Canada with 
Special reference to New England, by Samuel Hubbard Scudder, Cam- 
bridge ; ible ee ig by the author, 1888. Twelve monthly parts, $5.00 per 
or $50.00 for the whole work if paid for before Jan. 1, 1889. 
2%. 
