FISHES OF HOUGHTON COUNTY. 10 



captured. The habitat undoubtedly represented an important feeding- 

 ground for them. 



Perca flavescens. — One small specimen taken. 



Deep Water Region. — As previously stated, the deep water region, 

 by which is meant all of that extensive portion of the lake sur- 

 rounded by the relatively narrow shoals, was scarcely examined in 

 any of the lakes, but in this lake, a little hook and lino fishing, done 

 just off the shoal called Station 1, yielded seven Perca flavescens (130- 

 160 mm. long); and just off the lily zone of Station 7, in deep water, 

 two rather large Lepomis cyanellus (150-180 mm. long) and a Micropter- 

 tis salmoides (265 mm. long) were taken. 



Stream at Station 7. The stream already referred to as entering 

 the lake at this station is a very small one, and fish were found only 

 close to its mouth, in a deep pool (as deep as four feet in places). Sat- 

 isfactory collecting could not be done with a net, but a number of good 

 sized Seniotihis atromaculatus (10-15 cm. long) were caught there with a 

 hook and line baited with worms. 



Station 40. This is the area about the head of Misery Creek, the 

 principal and perhaps the only outlet of the lake. The general character 

 of the region is shown in Plate VIII. The water is very deep at the 

 source of the creek, but about a bridge and for a considerable distance 

 below it, the stream is shallow enough to permit fishing with the small 

 seine. In the center of the stream the depth averages perhaps thr(H> 

 feet. The bottom is of hard sand covered in places with considerable 

 brush and other forest debris. Fish tended to keep under the ])ridge, 

 where they were abundant ; few Avere found in the other part of the creek 

 visited. The following species were noted and collected: 



Chrosomus erythrogaster . — Abundant; many large specimens, 60-70 

 mm. long were taken. 



Semotilus atromaculatus. — Abundant; many large specimens, 120 or 

 more mm. long, were taken. As many as two dozen of these large 

 chubs were caught at a haul with the six-foot seine. 



Rhinichthys atronasus lunatus. — Abundant; many large s))(>cimen 

 some 100 mm. long, were collected. 



Leuciscus neogeus. — Two Avere taken, each about 70 nnn. long. 



Couesius plumbeus. — ('ommon. They were mostly about 50 mm 

 long. 



Perca flavescens. — Five were taken, 50-70 mm. in length. 



Micropterus salmoides. — One taken, about 40 nun. long. 



North Twin Lake. This lake Hes to the north and east of South Twin 

 Lake and is considerably the larger of the two. Very little work was 



s. 



