ILLUSTRATIONS 



Figures 



Page 



1. Map of west coast of South America, showing ports, islands, bays, 



and places mentioned in the text under range of distribution of 

 species 4 



2. Map of coastal Peru showing the location of the larger cities and 



important collecting stations 5 



3. Diagram of the corbina (Sciaena gilberti Abbott), showing names of 



parts used in descriptions and keys 12 



4. Heterodontus quoyi (Freminville) : Specimen from Lobos de Tierra 



Island, Peru 23 



5. Mustelus mento Cope: Specimen from La Ventanilla, Peru 30 



6. Mustelus dorsalis Gill: Specimen from Pacasmayo, Peru 34 



7. Mustelus maculaius (Kner and Steindachner) : Specimen from Lobos 



de Tierra Island, Peru 34 



8. Rhinobatos planiceps Garman: Specimen from Lobos de Tierra Island, 



Peru 51 



9. Psammobatis caudispina, new species: Type, from Chimbote, Peru 56 



10. Psammobatis asper, new species: Type, from Pachacamac Island, 



Peru 58 



11. Psammobatis maculatus, new species: Type, from Guanape Island, 



Peru 60 



12. Psammobatis chilcae, new species: Type, from Chilca Bay, Peru 62 



13. Urotrygon serrula, new species: Type, from Lobos de Tierra Bay, 



Peru 66 



14. Urotrygon caudispinosus, new species: Type, from Independencia Bay, 



Peru 69 



15. Urotrygon peruanus, new species: Type, from Paita Bay, Peru 70 



16. Pteroplatea afuerae, new species: Type, from Lobos de Afuera Island, 



Peru 72 



17. Ethmidium chilcae, new species: Type, from Chilca Bay, Peru 83 



18. Opisthopterus equatorialis, new species: Type, from Puerto Pizarro, 



Peru 93 



19. Odontognathus tropicus, new species: Type, from Puerto Pizarro, Peru. 95 



20. Engraulis ringens Jenyns: Specimen from Lobos de Tierra Island, 



Peru 97 



21. Anchoa naso (Gilbert and Pierson) : Specimen from Taboga Island, 



Panama 102 



22. Anchoa nasus (Kner and Steindachner): Specimen from "Peru" 103 



23. Vinciguerria pacifici, new species: Type, from off Lobos de Afuera 



Island, Peru 107 



24. Synodus sechurae, new species: Type, from Sechura Bay, Peru 111 



25. Synodus marchenae, new species: Type, from Marchena Island, 



Galdpagos 115 



26. Galeichthys peruvianus Llitken: Specimen from Callao, Peru 124 



27. Galeichthys jordani (Eigenmann and Eigenmann) : Specimen from 



Callao, Peru 126 



28. Arius multiradiatus Giinther: Specimen from Guayaquil, Ecuador_. 128 



29. Gymnothorax wieneri Sauvage: Specimen from Lobos de Afuera Island, 



Peru 131 



IX 



