ILLUSTRATIONS 



PLATES 



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1. Sovichthys abuelo, new geuus and species ; Pseudopimelodus vil- 



las us butcheri, new subspecies ; Pimelodus grosskopfii navarroi, 



new subspecies ; Pinielodella linami, new species 204 



2. Pinielodella chagresi odynea, new subspecies ; Megalonema platy- 



cephaluni psammium, new subspecies; Cetopsorhamdia sher- 

 mani, new species ; V. picklei, new species 204 



3. Cetopsorhamdia Orinoco, new species ; PerrunicMhys perruno, 



new genus and species ; Platysilurus malarmo, new species 236 



4. Tra<;hycorysteH insignis prlniehthi/.s, new subspecies; Ageneiosus 



freiei, new species; Hoplomyzon atrizona petroleus, new sub- 

 species; Dupouyichthys sapito, new genus and species 236 



5. Pseudocetopsis phimbeus Orinoco, new subspecies; P. p. mota- 



tanensis, new subspecies ; Pygidium emanueli enumueU, new 

 species and subspecies 252 



6. Pygidium emanueli motatanensis. new subspecies ; P. Mmieaui 



maracaiboensis, new subsi)ecies ; TridensimiUs venezuelae, new 

 genus and species 252 



7. Doraops zuloagai, new genus and species ; Chaetostoma tachi- 



raensis, new species ; Astrohlepus phelpsi, new species 292 



S. Chaetostoma anomala sovichthys, new subspecies ; Pseudanci- 



strus torbesensis, new species 292 



9. Pseudancistrus pediculatus cobrensis, new subspecies ; Andstrus 



triradiatus martini, new subspecies 316 



10. Andstrus brevifilis bodenhanieri, new subspecies; Panaqne sut- 



toni, new species ; Hemiancistrus maracaiboensis, new species- 316 



11. Lasiaticistrus maracaiboensis, new species; Cocliliodon pospisili, 



new species 316 



12. Loricaria uracantha rupestre, new subspecies ; L. variegata 



venezuelae, new subspecies 316 



13. Loricaria gymnogaster lagoichthys, new subspecies 332 



14. Spatuloricaria phelpsi, new genus and species 332 



15. New species of Cneslnus 400 



16. New species of Camptocertis and Hexacolus 400 



17. New species of Phloeotribus, Phrixosoma, and Carphobius 400 



18. Wings of Clothoda urichi intermedia (Davis) and Pararhaga- 



dochir trinitatis (Saussure) 504 



19. Wings of Oligembia gigantea, new species, and Schizembia 



grandis, new genus and species 504 



20-27. Species of Argulus 582 



28. Species of Lepeophtheirus 582 



29. Species of Dysgamn^ and Lepeophtheirus 582 



30. Species of Parmulodes and Asterocheres 582 



31. Species of Brachiella, Pestifer, and Teredicola 582 



32. Species of Kr0yerina, Paeonodes, and Lernaeosolea 582 



33. Species of Lepeophtheirus and Achtheinus 582 



34. Species of Vnicalteutha and Ostrincola 582 



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