No. 458.] NOTES AND LITERATURE. 99 
In the Zoologischer Anzeiger (Vol. 27, No. 22), Dr. L. S. Berg 
describes a new genus of sturgeons which he calls Huso, the type 
being Acipenser huso. This differs from the other sturgeons in hav- 
ing the gill membranes united, forming a free fold across theisthmus. 
The snout is soft and flexible and the very large mouth includes the 
whole under surface of the snout. The barbels are compressed. 
This definition is a new one, but the generic name Huso was used 
by Brandt and Ratzeburg in 1883 for a subgenus including the same 
type. 
Under the title of “ Pescas do Annie," Dr. Alipio de Miranda 
Ribeiro gives an account of fishes taken by the Steamer “ Annie? off 
the coast of Brazil with the “otter trawl.”  Fifty-nine species were 
obtained. "These areillustrated by means of photographs. Among 
‘the new species are Fistularia rubra, Anthias duplicidentatus, Liocsa- 
cus intermedius, Pontinus corallinus, Peristedion roseum, Pseudopercis 
numida, Hypsicometes heterurus, Lepophidium fluminense, Urophycis 
mystaceus, U. latus, Paralichthys triocellatus, and Gymnachirus zebri- 
nus. 
In Sports Afield for August, 1904, Dr. Barton W. Evermann gives 
valuable suggestions as to how to study a lake. This has particular 
reference to training children and young students to learn how to 
weigh evidence. Dr. Evermann calls attention to the fact that most 
. of the so-called “bottomless ” lakes are from 4o to 60 feet deep. 
In the Bulletin of the U. S. Fish Commission for 1904 Dr. 
Jordan gives an account of fishes collected by Dr. Joseph C. 
Thompson on the Tortugas, with the descriptions of several species, 
four of them new, vis. :— Cfenogobius toríuge, Gnatholepis thompsont, 
Elacatinus oceanops, and Ericteis &alishere. A new genus, Acteis, is 
proposed for the small blenny called Malacoctenus moorei. 
Under the title of “The Fresh-water Fishes of Mexico north of the 
Isthmus of Tehuantepec,” the Field Columbian Museum publishes 
a moŝt valuable faunal monograph by Dr. Seth Eugene Meek. it 
represents the results of two expeditions to Mexico, together with 
the examination of all previous papers on the fish fauna of that 
region. Two hundred and twenty-seven species are described, 28 
of them being new, with three new genera. Excellent plates of 
these species and many others are given, with a map of Mexico, and 
