List of Illustrations xiii 



PAGE 



Thymattus signijer, Alaska Grayling 120 



Thymallus tricolor, Michigan Grayling 122 



Osmerus mordax, Smelt 123 



Thaleichthys pretiosus, Eulachon or Ulchen 124 



Page of William Clark's Handwriting with Sketch of the Eulachon (Thaleich- 

 thys pacificus) 125 



Mallotus villosus, Capelin 126 



Salanx hyalocranius, Icefish 128 



Stomias ferox 128 



Chauliodus sloanei 129 



Synodus jaetens, Lizard-fish 130 



Ipnops murrayi 131 



Cetomimus gillii .132 



Diaphus lucidus, Headlight-fish 132 



Myctophumopalinum, Lantern-fish 133 



Ceratoscopdus madeirensis, Lantern-fish 133 



Rhinellus jurcatus 134 



Plagyodus jerox, Lancet-fish 135 



Eurypholis sulcidens 136 



Eurypholis freyeri 137 



Argyropelecus oljersi 137 



Aldrovandia gracilis 138 



Anguilla chrisypa, Common Eel 143 



Anguilla chrisypa, Larva of Common Eel 148 



Simenchelys parasiticus, Pug-nosed Eel 149 



Synaphobranchus pinnatus 149 



Leptocephalus conger, Conger-eel 150 



Larva of Conger-eel, Leptocephalus conger 150 



Xyrias revulsus 151 



Myrichthys pantostigmius 151 



Ophichthus ocellatus .. 151 



Nemichthys avocetta, Thread-eel 152 



Jaws of Nemichthys avocetta 152 



Murcena retijera 153 



Gymnothorax berndti 154 



Gymnothorax jordani 155 



Gymnothorax moringa, Moray 155 



Derichthys serpentinus 156 



Gastrostomus bairdi, Gulper-eel 156 



Notacanthus phasganorus 158 



Inner view of shoulder-girdle of Buffalo-fish (Ictiobus bubalus}, showing the 



mesocoracoid 160 



Weberian apparatus and air-bladder of Carp 160 



Brycon dentex 162 



Pharyngeal bones and teeth of European Chub, Leuciscus cephalus 163 



