FISHES OF HOUGHTON COrXTY. 2:J 



with this purasit(>. They are ])arasitize(l internally as well as ex- 

 ternally, for fourteen parasitic worms, Echinorynehus, were found in 

 their alimentary eanals. A superficial examination was made of the 

 digestive tracts of ten large dace (103-143 mm.) and the contents ob- 

 served were as follows: elytra and other i)arts of l^eetles, pieces of 

 dragon-fly and May-fly nymphs, sn)all spid(>rs, winged ants, a small 

 amphipod, some pieces of wood, and the vertebral columns of two frogs. 

 The two hundred and thirteen specimens preserved measured 27-1")') 

 nun. 



7. Lcucii^cus neogeun (Cope). — Eight (44-7U mm.) were taken from 

 South Twin Lake. 



8. Ahramis chrysoleucas (Mitchill). Golden Shiner. — Only one very 

 small specimen (31 mm.) was observed. This was found in Bear Lake. 



9. Notropis cayuga, Meek. — Common at Bear Lake but none w^ere 

 found elsewhere in the region. Twenty-four specimens (61-66 mm.) 

 were taken. 



10. Rhinichthys atronasus lunatus (Cope). Black-nosed Dace. — 

 Noted only in Twin Lakes, where it was present in considerable numbers. 

 The fifty-five specimens preserved measured 25-98 mm. 



11. Couesi'us plumbeus (Agassiz). — Found in some numbers in South 

 Twin Lake. Fort,y-two w^ere taken, the measurements of which were 

 40-50 mm. 



12. Salvelinus fontinalis (Mitchill). Brook Trout. — A common fish 

 in the streams. None were found in lakes, but the writer was told that 

 they frequent the shoals in the spring, retiring into the deep water in 

 summer, when they rarely take a hook. 



A few small specimens were taken by hook in a small l)ranch of 

 Sleepy Creek, at Winona. On three small specimens (46-84 mm.) four 

 large copepod parasites (probably Lernaepoda) Avere found. 



13. Esox lucius L. Common Pike. — The writer saw fish of this 

 species that had been taken in a small lake located some seven miles 

 southeast of Winona. This lake is said to contain so many of these fish 

 that it is called "Pike Lake." 



14. Eucalia' incotistans (Kirtland). Brook Stickleback. — Six s))eci- 

 mens of this stickleback were collected at Stonington and South TAvin 

 Lake. They measured from 32-53 mm. 



15. Pygosteus piingitus (Linnaeus). Nine-spined Stickleback. — 

 Found only at Middle Stonington Lake where eight were taken from a 

 single school. Thej- measured 42-49 mm. 



16. Lepomis cyanellus Rafinesque. Blue-spotted Sunfish.^Found 

 in small numl)ers at TavIu Lakes and very abundant at Kratt Lake. 

 Those collected measured 20-160 mm. An examination of the digestive 

 tracts of ten specimens, averaging about 120 mm. in length, showed 



