1887] Zoology. 673 
m 
AK. Fisher, M.D., Washington, D. C., June 7, 1887. 
Zoological News.—CŒLENTERATES.—Fewkes has described a 
new medusa from New Haven, under the name Nectopilema 
verrillit. This jelly-fish belongs to the Pilemidæ, and its nearest 
relatives are Pilema and Rhopilema, with affinities pointing , 
towards Polyrhiza. It is about eighteen inches in diameter, 
rich, deep brown in the oval cylinder and frills, the umbrella 
translucent bluish-white. 
© Crustacea.—H. L. Osborn begins in the May number of the 
Amer, Mo, Micros. Four. a series of articles on the histology of 
the crayfish, the first dealing with the green gland. 
t a recent meeting of the Linnzan Society of London, Mr. 
A. O. Walker gave an account of a large collection of Crusta- 
cea obtained at Singapore during the years 1879-1883. Sev- 
eral new species of Decapods are described. 
Professor H. L. Osborn’s article on the Osphradium of Crepi- 
dula, to which reference was recently made, has been reprinted 
inthe Amer, Mo. Micros. Four., viii., pp. 60-64, with illustrations 
which render the description more readily followed. 
Worms.— Messrs. Gibson and Chalmers, of Liverpool, have 
come to the conclusion that the so-called hepatic cells of Lum- 
bricus are digestive glands rather than “ vasifactive tissue,” as 
has been suggested. 
Fisnes—From the Andes of the United States of Colombia 
G. A. Boulenger describes three new Siluroid fishes. 
- C. H. Eigenmann and Jennie E. Honing, in their review of 
the Chætodontidæ of North America, published in the Annals 
and Magazine of the New York Academy of Sciences, admit three 
genera—Prognathodes, Chzetodon, Pomacanthus—and fourteen 
. 
species of the family. 
