1340 BULLETIN OF THE BUREAU OF FISHERIES. 



APPENDIX. 



SUGGESTIONS FOR SUBJECTS FOR ILLUSTRATIVE MUSEUM FISH GROUPS. 



(See pages 1318-1319.) 



Order Plagiostomi: Cub-shark with shark-sucker. (Commensalism.) 



Transitional forms — shark to skate. (Evolution and adaptation.) 

 Order Holocephali : Life history of Chinuera colliei. (Growth and development.) 

 Subclass Dipneusti: Nesting and burrowing habits of Protoplcrus. 

 Order Chondrostei: Feeding habits of Polyodon spathula. (Also adaptation.) 

 Order Holostei: Nesting and feeding habits of Amia calva. (Instincts.) 

 Order Ostariophysi : Land habits of Doras. (Possible evolution in progress.) 

 Order Apodes : Life history of the common eel. (Metamorphosis.) 

 Group of morays. (Adaptation.) 

 Deep sea saccopharyngids. (.Adaptation.) 

 Order Malacopterygii : Humpbacked or hooknosed salmon. (Sexual dimorphism.) 



Salmon leaping. (Instincts.) 

 Order Mesichthyes : Four-eyed fish (Anableps dovii). (Adaptation.) 



Blindfish — cave fauna. (Degeneration; adaptation.) 

 Group of flying fishes. (Adaptation.) 

 Order Thoracostraci : Breeding habits of stickleback. (Instincts.) 



Group of sea horses. (Specialization; protective resemblance.) 

 Order Acanthopterygii : 



Suborder Percesoces: Habits and adaptations of Anabas scandens. 

 Suborder Scombrif ormes : Life history of Sekne vomer. (Metamorphosis.) 



Nomeus grono-vii and Physalia arethusa. (Symbiosis.) 

 Suborder Perciformes: Nesting habits of the gourami {Osphromenus oljax). (Instincts.) 

 Suborders Perciformes, Pharyngognathi, Squamipinnes, Sclerodermi, and Gymnodontes: Tropical 



coloration and degeneration. 

 Suborder Scleroparei: Group of toadfishes, sea-robins and sea-ravens to illustrate adaptation to 



bottom life and protective resemblance. 

 Suborder Jugulares: Group of Ficrasjer aciis and holothurians to illustrate symbiosis. 

 Suborder Heterosomata : Life history of flounder. (Metamorphosis, adaptation to bottom life, and 

 protective resemblance.) 

 Order Pediculati : Group of deep-sea fishes illustrating adaptation. 



Note. — In several instances two or more of the above suggestions could be advantageously com- 

 bined in a single group, illustrating several biological principles in one exhibit. 



