402 



PATAGONIAN EXPEDITIONS! ZOOLOGY. 



Ai. Callichthys callichthys Linnaeus, 1 



E. & E., 452. 

 Callichthys tamoata Linnaeus; C. asper 

 Quoy & Gaimard; Cataphr actus de- 

 pressus Swainson ; Callichthys cce- 

 latus Cuvier & Valenciennes ; C. 

 Iccviceps Cuvier & Valenciennes; C. 

 loricatus Gronow ; C. kneri Gill ; C. 

 affinis Gitnther; C. hemiphractus 

 Hensel. 

 Habitat : La Plata to Trinidad. 

 2. Callichthys arcifer Hensel, E. & E., 455. 

 Habitat: Rio de Janeiro. 



HOPLOSTERNUM Gill. 



Type: Callichthys laevigatas Valencien- 

 nes. 



Range : La Plata to Trinidad. 

 A 1. Hoplosternum littorale (Hancock), 



E. & E., 456. 



Callichthys subulatus Cuvier & Valen- 

 ciennes; C. lecvigatus Valenciennes; 

 C. albidus Cuvier & Valenciennes ; 

 Hoplosternum stewardii Gill. 



Habitat : La Plata to Trinidad. 

 A2. Hoplosternum thoracatum (Cuvier & 

 Valenciennes), E. & E., 458. 



Callichthys longifilis Cuvier & Valen- 

 ciennes ; C. personatus Ranzani ; C. 

 exaratus and pictus Miiller & Tro- 

 schel ; C. sulcatus Kner ; C. chiquitos 

 Castelnau. 



Habitat: Amazons and northward; 

 Paraguay. 

 A3. Hoplosternum melampterum (Cope). 



Hoplosternum pectoralis Boulenger. 



Habitat : Ambyiacu. 



Decapogon Eigenmann & Eigenmann. 



Type: Callichthys adspersus Steindach- 



ner. 

 Range that of the single species. 



1 Several varieties of this species may be recognizable. 

 Regan considers kneri from Trinidad a distinct species. 



A i. Decapogon adspersum (Steindachner), 



E. & E., 461. 

 Habitat: Porto do Moz ; Cudajas; Ta- 

 batinga. 



Dianema Cope. 



Type: Dianema longibarbis Cope. 

 Range that of the single species. 

 A 1. Dianema longibarbis Cope, 



E. & E., 463- 

 Habitat : Ambyiacu. 



Ch^nothorax Cope. 



Type: Chccnothorax bicarinatus Cope. 

 Range : Marahon and tributary. 

 1. Chccnothorax taiosh (Castelnau), 



E. & E., 464. 

 Habitat: ? 

 A2. Chccnothorax bicarinatus Cope, 



E. & E v 464. 

 Habitat: Maranon. 

 A3. Chccnothorax semiscutattis Cope, 



E. & E., 464. 

 Habitat : Ambyiacu. 



Brochis Cope. 



Type : Brochis cccruleus Cope. 



Range : Maranon and tributaries. 

 A 1. Brochis diptcrus Cope, . . E. & E., 464. 



Habitat : Ambyiacu. 

 A2. Brochis cccruleus Cope, . . E. & E., 464. 



Habitat : Ambyiacu. 



Aspidoras von Ihering. 



Type: Aspidoras rochai v. Ihering. 

 Range that of the single species. 

 1. Aspidoras rochai v. Ihering, 



v. I., 1907, 30. 

 Habitat : Fortaleza, Ceara. 



Corydoras Lacepede. 



Hoplisoma Swainson; Hoplosoma Gill; 

 Gasterodermis Cope. 

 Type : Corydoras geoffroy Lacepede. 



