438 



BULLETIN OF THE BUREAU OF FISHERIES 



but it is obvious from the data that follow that the sets were probably in too shallow 

 water. The species was rare in examined lifts made on August 24, 1920, 10 miles 

 E. by N. of Algoma, Wis., in 35 to 50 fathoms (record 4); on September 3, 1920, 

 22 miles NW. by N. y 2 N. of Michigan City, Ind., in 30 to 40 fathoms (record 9); 

 on October 11, 1920, 20 miles N. by W. M W. in 30 to 40 fathoms (record 10); and 

 on November 8, 1920, 18 miles NNW. in 30 to 38 fathoms (record 11); on July 31, 

 1923, 5 miles northwest of Cathead Light, Mich., in 40 to 60 fathoms (record 18); 

 on June 29, 1920, 5 miles N. by E. of Charlevoix, Mich., in 40 to 55 fathoms, and on 

 August 11, 1923, 3 miles NW. K W. in 35 to 60 fathoms (records 19 and 21); on 

 August 12, 1920, 15 miles SE. by S. Y 2 S. of Manistique, Mich., in 60 to 70 fathoms 

 (record 22). It made up 35 to 65 per cent of the catches of the nets lifted on September 

 25, 1920, 18 miles E. Y 2 S. of Port Washington, Wis., in 65 to 48 fathoms 98 (record 

 6); on October 4, 1920, 9 miles north of Point Betsie, Mich., in 60 to 70 fathoms 

 (record 17) ; on September 23, 1920, 27 miles ESE. of Milwaukee, Wis., in 60 fathoms 

 (record 8); on August 23, 1920, 12 miles E. by S. of the mouth of the Sturgeon Bay 

 ship channel, Wis., in 60 to 70 fathoms (record 3); and on August 19, 1920, 20 miles 

 E. y 2 N. of Rock Island, Wis., in 71 to 90 fathoms (record 2). It occurred in lifts 

 made on March 20, 1919, 12 miles west of Grand Haven, Mich., in 50 to 55 fathoms 

 (record 13); May 26, 1922, 8 miles northeast of Port Washington, Wis., in 20 to 35 

 fathoms (record 7); June 30, 1920, 3 miles northwest of Charlevoix, Mich., in 40 to 

 65 fathoms (record 20); August 18, 1920, 14 miles E. % N. of Rock Island, Wis., 

 in 30 to 50 fathoms (record 1); August 30, 1920, 17 miles and 12 miles W. ^ S. of Lud- 

 ington, Mich., in 60 to 70 and 40 to 50 fathoms (records 14 and 15); and on October 

 1, 1920, 11 miles southeast of Sheboygan, Wis., in 60 fathoms (record 5), but in what 

 numbers is not known. 



In the seven samples of the catches of the 1 J4-inch bait nets in 28 to 40 fathoms 

 examined at Sheboygan, Port Washington, and Racine, Wis., at Michigan City, 

 Ind., and at Manistee, Northport, and Traverse City, Mich., no kiyis occurred, 

 and only two specimens were ever seen among the bloaters brought in ensnarled in 

 the lifts of the 43^-inch nets. These were taken on August 28, 1920, 9 miles north- 

 west of Manistee, Mich., in 28 to 32 fathoms (record 16), and on November 19, 

 1920, 30 miles NNW. of Michigan City, Ind., in 48 to 50 fathoms (record 12). 



In summary, Jciyi was not found in 7 samples from lj^-inch nets at 28 to 40 

 fathoms, or in 10 catches of chub nets from 11 to 50 fathoms or 3 from 40 to 60 

 fathoms. It was rare in seven catches of the chub nets from 30 to 60 fathoms and 

 in one from 60 to 70 fathoms. It was common only in five chub catches from 60 to 

 90 fathoms. It occurred once in unknown numbers in a catch of the chub nets as 

 shallow as 20 to 35 fathoms and once in trout nets at 28 to 30 fathoms and 48 to 50 

 fathoms. It appears from the foregoing that the species attains its maximum 

 density from 60 to 70 fathoms and probably deeper, and that it ranges occasionally 

 as shallow as 30 fathoms or perhaps less. The fishermen at Grand Haven and Frank- 

 fort, Mich., state that a small, thin, large-eyed fish, which undoubtedly is Tciyi, 

 occurs deeper than 70 fathoms, and it is possible that Tciyi is distributed throughout 

 the vast central basins of the lake. 



88 The field notes show that the species was six times more abundant in the 65-fathom end of the gang. 



