xxxii FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. V. 



Tetragonopterus mezicanus Filippi: Chihuahua; Santa Rosalia; Jimenez; Mon- 

 terey; San Juan; Montemorelos; Brownsville; Comanche Spring; Mon- 

 clova. 



Anguilla chrysypa Rafinesque: Matamoras; Brownsville; San Juan. 



Dorosoma exile Jordan & Gilbert: San Juan. 



Fundulus similis (Baird & Girard) : Brownsville. 



Fundulus zebrinus (Jordan & Gilbert) : Brownsville. 



Lucania venusta (Girard) : Matamoras. 



Cyprinodon eximius Girard: Chihuahua; San Andres; Jimenez; Santa Rosalia. 



Cyprinodon elegans Baird & Girard: Comanche Spring. 



Gambusia affinis (Baird & Girard): Comanche Spring; Chihuahua; Cadereita; 

 Matamoras; Jimenez; San Andres; Santa Rosalia; Monterey; Monclova. 



Glaridichthys latidens (Garman) : Chihuahua. 



Poecilia couchiana (Girard): Monterey; Cadereita. 



Poecilia sphenops Cuvier & Valenciennes; San Juan; Monterey. 



Mollienesia formosa (Girard) : Palo Alto. 



Mollienesia latipinna Le Sueur: Brownsville; Matamoras. 



Lepidopomus cyanellus Rafinesque: Eagle Pass; Brownsville. 



Lepidopomus occidentalis Meek: Jimenez; Santa Rosalia. 



Lepidopomus haplognathus Cope: Monterey. 



Lepidopomus pallidus (Mitchill) : Brownsville; Cadereita. 



Eupomotis heros (Baird & Girard) : Cadereita. 



Micropterus salmonoides (Lac6pede) : San Juan; Montemorelos. 



Etheostoma australe (Jordan): Chihuahua; San Andres; Jimenez; Santa Rosalia. 



Etheostoma pottsii (Girard): Chihuahua; San Andres; Santa Rosalia; Jimenez. 



Etheostoma lepidum (Baird & Girard) : Brownsville. 



Haploidonotus grunniens Rafinesque: Matamoras. 



Cichlasoma pavonaceum (Garman) : Monclova. 



Cichlasoma cyanoguttatum (Baird & Girard): Brownsville; Fort Brown; Mata- 

 moras; Cadereita; San Juan; Montemorelos; Monterey. 



Neetroplus carpintis Jordan & Snyder: San Juan. 



Philypnus dormitor (Lac6pede) : Brownsville. 



Dormitator maculatus (Bloch) : Brownsville. 



RIO CASAS GRANDES. 



This is a small mountain stream in northern Chihuahua which 

 flows into Lago de Guzman. By the end of the dry season the lake 

 becomes nearly or entirely dry, and there is very little water in the 

 river below Terrasas. 



Below is a list of the fishes known from this river and its trib- 

 utaries : 



Amiurus pricei (Rutter) : San Diego. 



Pantosteus plebeius (Baird & Girard): Rio Mimbres; Riojanos; Colonia Garcia; 



San Diego; Casas Grandes; Colonia Juarez. 

 Campostoma ornatum Girard: Colonia Garcia; Colonia Juarez. 

 Pimelocephales confertus (Girard): Colonia Juarez ; Guzman. 

 Leuciscus nigrescens (Girard): Riojanos; Boca Grande; Rio Mimbres; Colonia 



Juarez; San Diego. 



Nototropis formosus (Girard): Rio Mimbres; Colonia Juarez. 

 Cyprinodon elegans Baird & Girard: Colonia Juarez; Guzman; San Diego. 



