FISHES OF LORAIN COUNTY, OHIO. 13 
The Stone-cats, Votwrus, are distinguished from the other gen- 
era by the second dorsal fin, which is connected to the back along 
its whole length, often joining the tail. 
There are three species in our waters. All have venom pores 
in the pectoral spines, a stab from which stings like a wasp. In 
the aquarium they are always most active at night. 
14. Noturus flavus (Rafinesque). YELLOW STONE-carT. 
HAMMER-HEAD. 
[Jord. Man. 60. O. St. Surv. 23.] 
Body elongated, head flattened, nearly as broad as long. Band 
of teeth on front of upper jaw, U shaped. Color yellowish brown. 
Length 12 inches. 
The most common stone-cat; found in the larger streams 
and in the lake. They are sometimes taken in the pounds and 
are often killed and thrown onto the beach by the waves during 
storms. 
15. Noturus miurus Jordan. VariEGaTED STONE-CaT. 
[Jord. Man. 63. O. St. Surv. 25.] 
Body slender, grayish Jody with four black cross bands, black 
on top of head, tip of dorsal and middle of caudal ; length 5 inches. 
Quite rare. I have taken a few in both Vermillion and 
Black Rivers. On July 4th, 1891, I picked up a dozen full-grown 
ones that were floating in the water near the mouth of Black River, 
evidently stunned by the waves that a storm was dashing against 
the piers. A puncture from the pectoral spine of one 1% inches 
long reminded me of the sensation of a hornet’s sting for two 
hours. ‘They are one of our prettiest aquarium fishes. 
16. Noturus gyrinus (Mitchill). CHusspy STONE-cat. 
[Jord. Man. 65. O. St. Sury, 26.] 
Head large, broad and deep; color brownish yellow, with a 
narrow, black lateral streak; pectoral spine smooth; \ength 5 
inches. . 
Common on the mud banks in the lower parts of streams enter- 
ing the lake. 
FAMILY VII. CATOSTOMIDE. THE SUCKERS. 
Suckers are oblong or elongated fish, usually with lips thick- 
ened into a ‘‘sucker mouth;” scales smooth in most species, large 
and coarse; ventral fins abdominal, belly not sharp, head scaleless, 
the single dorsal fin with more than 11 rays. (See plate 3.) 
