Page:An Introduction to the Study of Fishes.djvu/35

Rh abandoned Artedi's order of Branchiostegi, but substituted a scarcely more natural combination by joining it with Artedi's Chondropterygians, under the name of "Amphibia nantes."

His classification of the genera appears in the 12th edition of the "Systema," thus—

Spiraculis compositis.
 * Petromyzon.
 * Raia.
 * Squalus.
 * Chimæra.

Spiraculis solitariis.
 * Lophius.
 * Acipenser.
 * Cyclopterus.
 * Balistes.
 * Ostracion.
 * Tetrodon.
 * Diodon.
 * Centriscus.
 * Syngnathus.
 * Pegasus.


 * Muræna.
 * Gymnotus.
 * Trichiurus.
 * Anarhichas.
 * Ammodytes.
 * Ophidium.
 * Stromateus.
 * Xiphias.


 * Callionymus.
 * Uranoscopus.
 * Trachinus.
 * Gadus.
 * Blennius.


 * Cepola.
 * Echeneis.
 * Coryphæna.
 * Gobius.
 * Cottus.
 * Scorpæna.
 * Zeus.
 * Pleuronectes.
 * Chætodon.
 * Sparus.
 * Labrus.
 * Sciæna.
 * Perca.
 * Gasterosteus.
 * Scomber.
 * Mullus.
 * Trigla.


 * Cobitis.
 * Amia.
 * Silurus.
 * Teuthis.
 * Loricaria.
 * Salmo.
 * Fistularia.
 * Esox.
 * Elops.
 * Argentina.
 * Atherina.
 * Mugil.
 * Mormyrus.
 * Exocœtus.
 * Polynemus.
 * Clupea.
 * Cyprinus.