402 



PATAGONIAN EXPEDITIONS: ZOOLOGY. 



Ai. Callichthys callichthys Linnaeus, 1 



E. & E., 452. 



Callichthys tamoata Linnasus ; C. asper 

 Quoy & Gaimard; Cataphractus de- 

 pressus Swainson; Callichthys cce- 

 latus Cuvier & Valenciennes; C. 

 Iceviceps Cuvier & Valenciennes; C. 

 loricatus Gronow; C. kneri Gill; C. 

 affinis Giinther; C. hemiphractus 

 Hensel. 



Habitat : La Plata to Trinidad. 

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

 Habitat: Rio de Janeiro. 



HOPLOSTERNUM Gill. 



Type : Callichthys Icevigatus Valencien- 

 nes. 



Range : La Plata to Trinidad. 

 Ai. Hoplosternum littorale (Hancock), 



E. & E., 456. 



Callichthys subulatus Cuvier & Valen- 

 ciennes; C. Icevigatus Valenciennes; 

 C. albidus Cuvier & Valenciennes; 

 Hoplosternum stewardii Gill. 



Habitat : La Plata to Trinidad. 

 Aa. 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. 



Ai. 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. 

 Ai. Dianema longibarbis Cope, 



E. & E., 463- 

 Habitat: Ambyiacu. 



CH^ENOTHORAX Cope. 



Type: Chcenothorax bicarinatus Cope. 

 Range : Maranon and tributary, 

 i. Chaznothorax taiosh (Castelnau),' 



E. & E., 464. 

 Habitat: ? 

 A2. Chcenothorax bicarinatus Cope, 



E. & E., 464. 

 Habitat: Maranon. 

 A3. Chcenothorax semiscutatus Cope, 



E. & E., 464. 

 Habitat: Ambyiacu. 



BROCHIS Cope. 



Type : Brochis cocruleus Cope. 



Range: Maranon and tributaries. 

 Ai. Brochis dipterus Cope, . .E. & E., 464. 



Habitat : Ambyiacu. 

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



Habitat: Ambyiacu. 



ASPIDORAS von Ihering. 



Type: Aspidoras rochai v. Ihering. 

 Range that of the single species, 

 i. Aspidoras rochai v. Ihering, 



v. I., 1907, 30. 

 Habitat: Fortaleza, Ceara. 



CORYDORAS Lacepede. 



Hoplisoma Swainson ; Hoplosoma Gill ; 



Gasterodermis Cope. 

 Type : Corydoras "geoffroy Lacepede. 



