4i8 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Order PLECTOSPONDYLI. 



Family CATOSTOMID^. 



Holarctic fishes entering the northern 

 border of the tropics. 



CARPIODES Rafinesque. 



Type: Catostomus cyprinus Le Sueur. 

 Range : Guatemala through the Missis- 

 sippi valley and Great Lakes. 



1. Carpiodes meridionalis (Giinther), 



Meek, 26. 



Habitat : Vera Cruz to the Usumacinta 

 in Guatemala. 



2. Carpiodes tumidus Baird & Girard, 



Meek, 27. 

 Habitat : Rio Panuco to the Rio Grande. 



3. Carpiodes labiosus Meek, .... Meek, 29. 



Habitat: Rio Panuco Basin. 



PANTOSTEUS Cope. 

 Type: Minomus platyrhynchus Cope. 



Range : From tropical America north- 

 ward through the Rocky Mountains. 

 Pantosteus plebeius (Baird & Girard), 



Meek, 30. 



Catostomus guzmaniensis Girard ; Cato- 

 stomus nebuliferus Garman. 

 Habitat : From the northern margin of 

 tropical America at Durango north- 

 ward. 



MOXOSTOMA Rafinesque. 



Type : Catostomus anisurus Rafinesque. 

 Range : Rio Lerma through the eastern 



United States. 



Moxostoma austrinum Bean, Meek, 35. 

 Habitat : Rio Lerma Basin and head- 

 waters of the Rio Mezquital. 



Family CYPRINID^E. 



XYSTROSUS Jordan & Snyder. 

 Type: Xystrosus propoche Jordan & 



Snyder. 



Range that of the single species, 

 i. Xystrosus popoche Jordan & Snyder, 



Meek, 43. 

 Habitat: Rio Lerma Basin. 



ALGANSEA Girard. 



Type : Leuciscus tincella Cuvier & Va- 

 lenciennes. 

 Range : Lerma Basin. 



1. Algansea tincella (Cuvier & Valencien- 



nes), Meek, 44. 



Ceratichthys sallcei Giinther. 



Habitat : Rio Lerma ; valley of Mexico ; 



Rio Panuco Basin. 



2. Algansea dugesi Bean, Meek, 45. 



Habitat : Lerma Basin. 



3. Algansea rubescens Meek, . .Meek, 46. 



Habitat: Lerma Basin. 



4. Algansea lacustris Steindachner, 



Meek, 47. 



Algansea tarascorum Steindachner. 

 Habitat: Lerma Basin. 



5. Algansea affinis Regan, 



Regan, 1907-8, 151. 

 Habitat: Rio Lerma. 



6. Algansea stigmatura Regan, 



Regan, 1907-8, 152. 

 Habitat: Mexico. 



HYBOGNATHUS Agassiz. 



Type : Hybognathus nuchalis Agassiz. 

 Dionda Girard; Agoma Girard. 



Range: Border of tropical America 

 northeastward through the Missis- 

 sippi valley to the Delaware. 



