A K^:vIE^v of the (ioiuoii) fishes of japan, with 
DESCUIPTIONS OF TWENTY-ONE NEW SPECIES. 
By David Stark Jordan and John Ottekbein Snyder, 
Of tJie Leland Stanford Junior Universitij. 
In the present paper is given a d(;,scriptive catalog-uc of tiic species 
of gobies found in the waters of Japan. It is l)ased primarily on the 
larg-e collection made l)y the authors in Japan in the sunnuer of 1900, 
under the auspices of the Hopkins Biological Lahoratorj^ of Stanford 
Universit}'. Numerous additional specimens have been presented by 
the Imperial University of Tokyo through Dr. Kakichi Mitsukuri, 
and by the Imperial Museum of Japan through Dr. Chiyomatsu Ishi- 
kawa. The gobies collected by the U. S. Fish Commission steamer 
Albatross in 1900, the collections in the United States National 
Museum, and the collections of Professor Keinosuke Otaki in 1895 and 
189B have also been considered, as well as the collections made by Mr. 
Pierre Louis Jou}^ in 1885. 
A series of typical specimens are in the U. S. National Museum and 
in the Imperial University of Tok\'o. Duplicates have been presented 
to several other institutions. 
The accompanying drawings are the work of Mrs. Chloe Lesley 
Starks, artist of the Hopkins laboratory, and of Mr. A. H. Baldwin. 
MEASUREMENTS. 
The measurements given in the tables were made by means of 
dividers and a proportional scale. In some cases they will be of great 
value as an aid in discriminating between closely related species. It 
is believed also that they will show, in an approximately definite wa}', 
some of the variations of certain characters useful in the determination 
of relationships. 
They are expressed in hundredths of the length of the body, which 
is measured from the tip of the snout to the end of the last vertebra. 
The depth of the body is measured at its deepest part; depth of caudal 
peduncle at its narrowest place; length of caudal peduncle from base 
of last anal ray to end of last vertebra; length of head from tip of 
snout to posterior edge of opercle; length of snout from its tip to 
anterior margin of orbit; width of interorbital space measured on 
Proceedings U. S. National Museum, Vol. XXIV— No. 1244. 
Proc. N. M. vol. xxiv— 01 8 33 
