xo.noc. rBOCEEDINGS OF THE NATIONAL MUSEVM. 251 



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GASTEROSTEUS PUNGITIUS BRACHYPODA, Bean. 



No. 33896, U.S.I^.M. (1273). Bering- Islaud, July 20, 1882, L. Stejne- 

 ger. Four examples, the largest 28 mm. long. From small fresh- 

 water pond in Gavanskaya Swamp. D. X, 10; A. I, 9. 



No. 33824, U.S.KM. (1337). Bering Island, July 28, 1882, Stejneger. 

 From fresh- water pond behind the new cemetery. Female 60 mm. 

 long, with eggs. Dorsal spines alternating, XI, 11; A. I, 9. The ven- 

 tral spines do not extend to the i^osterior end of the pubic bone; their 

 length equals two-fifths that of the head, being nearly equal to eye 

 and snout combined. 



Xo. 38953, U.S.X.M. Bering Island, January, 1885, X. Grebnitsld. 

 Six specimens. Some of these specimens show distinct dark bands 

 along the sides, in one exami^le 11 in number. In other specimens the 

 bands are more or less obscure. There is a curious diversity in the 

 arrangement of the dorsal spines, which in some cases are nearly in a 

 straight line throughout the greater i)art of the length of dorsal base, 

 while in others the alternation is so decided as to make the top of the 

 back resemble a hedge. The specimens with distinct bands are appar- 

 ently males. They vary in length from 38 to 62 mm. Five of the 

 larger examples have the stomachs distended by intestinal worms. 

 From a single specimen four of these large parasites resembling tape 

 worms were taken, the Avorms being broad, flat, and about 25 mm. in 

 length. 



Xo. 39431, U.S.X.M. Same as above. Six specimens varying in 

 length from 52 to 80 mih. In all of these the ventral spine is very 

 short, shorter than the pubic bone; the largest example has the ven- 

 tral spine one-third as long'as the head, D. VIII-X, I, 9-10; A. 1, 8-9. 



Xo. 39432, U.S.X.M. As above. One specimen, 70 mm. long. In 

 this example the dorsal has 12 spines and 10 rays, and the anal is I, 9; 

 length, 2f^ inches. 



