590 The Animal Kingdom 



Subclass I. Actinopterygii. 



Superorder Chondrostei. 



Order 1. Polypterini. Example: h\ch\r, Polypt.erns bichir, iouwA m i\i& K\\t 

 River. 



Order 2. Acipenseroidei. Examples: spoonbill, Polyodon spathula, of the 

 middle Mississippi Valley, and Acipenscr sp., the sturgeons. 



Superorder 2. Holostei. Modern ganoid fishes. 



Order 1. Amioidea. Example: the bowfin, Aniia calva. 



Order 2. Lepisosteida. Example: long-nosed gar, Lepisosteus osseus. 



Superorder 3. Teleostei. Modern bony fishes. 



Order 1. Isospondyli. Examples: tarpon. Tarpon atlanticus; herring, 

 Clupea harengus; shad, Alosa sapidissima ; Atlantic salmon, Sahno salar; 

 Pacific salmon, Oncorhynchus tschazvytscha; rainbow trout, Sahno gaird- 

 neri; whitefish, Coregonus sp. 



Order 2. Haplomi. Examples: pike, Esox lucius; muskellunge, Esox mas- 

 quinongy; mud minnow. Umbra limi. 



Order 3. Iniomi. Lantern fishes, Myctophum, a deep sea fish with phos- 

 phorescent organs. 



Order 4. Lyomeri. Examples : gulpers, Saccopharynx, marine fish which 

 dwell at great depths. 



Order 5. Ostariophysi. Examples : sucker, Catostomus; carp, Cyprinus 

 carpio; black bullhead, Ameiurus melas; characins. 



Order 6. Apodes. Example : Eels, Anguilla rostrata. 



Order 7. Heteromi. Deep sea fish, Notacanthus. 



Order 8. Synentognathi. Examples: Garfishes, Strongylura; halfbeak, Hy- 

 porhamphus ; and flying fish, Exocoetus. 



Order 9. Microcyprini. Example : Top Minnow, Gambusia affinis; killifish, 

 Fundulus heteroclitus; cave fish, Amblyopsis speleus found in caves of 

 Indiana and Kentucky. 



Order 10. Solenichthyes. Example: pipefish, Syngnathus; sea horse, Hippo- 

 campus. 



Order 11. Anacanthini. Examples: codfish, Gadus morrhua; haddock, Melano- 

 grainmus acglcfinus. 



Order 12. Percomorphi. Examples: black bass, Micropterus sahnoidcs; 

 sunfish, Lepomis gibbosns; crappie, Pomoxis annularis; perch, Perca 

 flavescens; cichlids ; mackerel. Scomber scombrus; gobies. 



Order 13. Scleroparei. Examples : brook stickleback, Eucalia inconstans; 

 Sculpin, Cottus. 



Order 14. Heterosomata. Examples : flounder, P aralichthys ; halibut. Hip- 

 po glossus; sole, Achirus. 



Order 15. Discocephali. Examples: remoras, Retnora, the suckfish which 

 attaches itself to the underside of the shark. 



Order 16. Plectognathi. Example: giant ocean sunfish, ikfo/o wo/a; the trunk- 

 fish, Ostracion. 



Order 17. Pediculati. Example : angler fish, Lophius piscatorius, deep sea 

 inhabitant. 



