182 BULLETIN OF THE UNITED STATES FISH COMMISSION. 
15. Moxostoma mawolepidotum (LeSueiir).* “Mullet” ; “lied Mullet”; Redhorse Mullet. 
Very common in tho Potomac, where it reaches a weight of 2 ponnds. M.any caught in shad 
seines in the river below Washington; some taken with tho shad, but the hulk of the run is after 
the shad season. Tlio iishermen say that “when the red mullet come the shad fishing is over for 
seines.” 
CYPRINID.S3. The Carps and Minnows. 
16 . Cyprinus carpio Liiinmus.*' Carp; frcrman Carp; Asiatic Carp; varieties. Leather Carp and 
Mirror Carp. 
Introduced from Europe, and now very abundant in the Potomac and tho canal. Largo quantities 
are sent to tho city markets from tho adjacent parts of the Potomac. Many weighing from a few 
ounces to 30 ijounds are caught by anglers from wharves and tho Long Bridge. 
17 . Carassius auratus (Linnmns).* “Goldfish”; “Silver-fish”; “ Sand Perch.” 
Introduced from Europe aud now common in the river and its principal tributaries, interbreeding 
with the carp. Chielly valued as an aquarium fish; a few are sold for food in Washington markets 
under the name of “sand perch.” 
18. Tinea tinea (Linmens).* Tench. 
Introduced from Europe by the Fish Commission; escaped into the Potomac and now becoming 
common. Some are scut to market from District waters. Readily distinguished by its rich, greenish- 
brown color and very fine scales. 
19. Idus idus (Liumeus).* Golden Ide ; Golden Orfe. 
Introduced from Europe and escaped into tho Potomac from the United States Fish Commission 
ponds. A handsome, hardy aqtiarium tish and a fair food-fish, having a length of about a foot. 
20 . Hybognathu.s nuchalis Agassiz.* “Gudgeon” ; “Smelt”; “ Silver g Minnow” ; Smelt Minnow. 
Abundant in the Potomac aud tributaries. Many caught by anglers from tho city wharves and 
along the sea-walls of the reclaimed flats. Reaches a length of 6 inches, but averages only 4 inches. 
21 . Semotilus corporalis (Mitchill).* “ Fallfish”; “Chul)”; Dace. 
'Phis, tho largest native cyprinoid fish of the District, is not uncommon in the clear tributaries of 
the Potomac, especially Rock Creek. It is often caught with hook aud line in the smaller streams, 
but has little value as a market fish. It attains a length of 18 inches and a weight of nearly 5 pounds, 
but none so large has been observed in our local waters. 
22 . Seinotilus atromaculatus (Mitchill).* Horned Dace ; “Fallfish”; “Chub”; Silver Chub. 
Common in tributaries of Potomac aud in upper waters of Patuxent near Laurel, Md. The 
maximum size is 10 to 12 inches. 
23 . Leuciscus vandoisulus Cuvier & Valenciennes.* Minnow ; Long-mouthed Minnow. 
This beautiful minnow is found in tho creeks of the District, but it is not abundant. It has been 
collected in the Northwest Branch, Berry Run near Glenwood Cemetery, and Accokeek Creek near 
Bryan Point, Maryland. In tho last-named stream it has been found in some numbers. It is interest- 
ing to note that the sixth entrj^ in tho large catalogues of the fish collection of tho United States 
National Museum registers a specimen of this species taken in District waters by Prof. S. F. Baird. 
24 . Leuciscus margarita (Cope).* Minnow. 
This showy little fish inhabits clear creeks. It is less common than the preceding species. 
25 . Notemigonus crysoleucas (Mitchill).* “Roach”; “Sunfish”; “ Dace” ; “ Bitterhead”; Shiner; 
Chub ; Bream. 
One of' the most abundant and best known of our minnows, readily recognized by its uniform 
golden or brassy' color. It frequents waters with bottom overgrown with grass or other vegetation. 
Examples a foot in length have been taken. The smaller fish are excellent bait for black bass. 
26 . Notropis procne (Cope).* Minnow. 
A few specimens of this diminutive minnow, whose maximum length is only 2^ inches, have been 
taken in Little River. It probably occurs in other suitable places. 
27 . Notropis hudsonius amarus (Gir.ard).* Spawn-eater; Silver-fin; Shiner. 
Common in the Potomac. Typo w.as obtained at Washington and described by Dr. Girard in 1856. 
