[17] FISHERIES OF THE UNITED STATES. 403 



Cyprinid^. 



Coliscus. 



Tirodon. 



Hemitremia. 



Protoporus. 



Agosia. 



Leucosomus (subgenus of Semotilus). 



Symmetrurus. 



Trycherodon. 



Meda. 



Siluridje. 



Gronias. 



Schilbeodcs (subgenus of N'oturus). 



Lepidosteus (subgenus including L. osseus, which is represented by 

 a cast). 



As already stated, I have tried to present the type species of the genus 

 and one of the typical specimens of the species whenever that could be 

 done without risk to the Museum collection. The series exhibited in- 

 cludes all of the genera properly belonging to the fresh waters, with the 

 exceptions above noted. There are certain gobies which enter fresh 

 waters, but they have not the same claims of consideration in the ex- 

 hibition series as Gobiosoma, for instance, and need only be enumerated. 

 They are: Gobiomorus (= Philypnus) dormitator, Eleotris gyrinus, JDor- 

 mitator maculatus, Gobius lyricus, and Culms amblyopsis. G. amblyopsis 

 is shown in the Gulf of Mexico series. 



Under each of the economic species will be found some remarks con- 

 cerning its importance, but it may prove convenient to have a separate 

 list of the food fishes of this series, and I have accordingly introduced 

 it here. It will serve at least to show the great majority of the general 

 which afford food species. 



PARTIAL LIST OF ECONOMIC FRESH-WATER FISHES. 



Pomoxys sparoides. Esox americanus. 

 Arclwplites interruptus. Indus. 



Ambloplites rupestris. Dallia pectoralis. 



Chcenobryttus gulosus. Osmerus mordax. 



Lepomis auritus. Thaleichthys pacificus. 



pallidus. Thymallus tricolor, 



gibbosus. Coregonus williamsonii. 

 Micropterus dolotniei. clupeiformis. 



Perca amerieana. artedi. 



Stizostethium mtreum. Salmo salar. 



Hoccus saxatilis. Oncorhynchus Msutch. 



chrysops. Salvelinus fontinalis. 



americanus. Clupea vernalis. 



