TABLE OF CONTENTS. xiii 



PAGE 



77. altus (Jordan) 81 



Genus 33. Couesius Jordan 82 



78. adustus Woolman 82 



Subfamily Plagopterinae 83 



Genus 34. Plagopterus Cope 83 



79. argentissimus Cope . 83 



Family VI. Characinidae 83 



Subfamily Tetragonopterinae 84 



Genus 35. Tetragonopterus Cuvier 84 



80. mexicanus Filippi 85 



81. aeneus Gunther 86 



Genus 36. Hemigrammus Gill 87 



82. compressus Meek 87 



Subfamily Characinag 88 



Genus 37. Roeboides Gunther 88 



83. guatemalensis (Gunther) 88 



ORDER V. SYMBRANCHIA 89 



Family VII. Symbranchidas 89 



Genus 38. Symbranchus Bloch 89 



84. marmoratus Bloch 89 



ORDER VI. APODES 90 



. Family VIII. Anguillidas 90 



Genus 39. Anguilla Shaw . . . 90 



85. chrysypa Rafmesque 90 



ORDER VII. ISOSPONDYLI 92 



Family IX. Dorosomatidae . . . t * 92 



Genus 40. Dorosoma Rafinesque 92 



86. anale Meek 93 



87. exile Jordan & Gilbert '94 



Genus 41. Signalosa Evermann & Kendall 94 



88. mexicana (Gunther) 94 



Family X. Salmonidae 95 



Subfamily Salmoninas 95 



Genus 42. Salmo (Artedi) Linnaeus 95 



89. irideus Gibbons : 96 



ORDER VIII. HAPLOMI 98 



Family XI. Pceciliidas '. 98 



Subfamily Fundulinae 101 



Genus 43. Cynodonichthys Meek 101 



90. tenuis Meek i o i 



Genus 44. Fundulus Lacpede 102 



Subgenus Fundulus 103 



[guatemalensis Gunther] 103 



[punctatus Gunther] 104 



9 1 . oaxacag Meek 104 



92. vinctus Jordan & Gilbert 105 



93. similis (Baird & Girard) 105 



heteroclitus (Linnasus) 106 



grandis Baird & Girard 107 



