^>0 9, 



BULLETIN OF THE BUREALT OF FISHERIES. 



GEOGRAPHIC DISTRIBUTION OF FISHES IN ALASKA AND THE PUGET SOUND REGION. 



For the purposes of the present paper we have considered the territory covered 

 as niade up of five divisions, viz: 



1. The Pugct Sound-British ^'nluinhia region, extending northward tn Tlixon Entrance and Port- 

 land Canal. 



2. Southeast Alaska, from Dixon Entrance and Portland Canal to Yakutat Bay. 



3. Central Alaska, from Yakutat Bay to the Alaska Peninsula and the Aleutian Islands, including 

 Prince William Sound, Cook Inlet, and their connecting watere. 



4. Bering Sea, including the Yukon and all other tributary waters in Alaska. 



5. Arctic Ocean, including the Mackenzie and all other tributary waters in Alaska. 



The geographic distribution of fishes in these regions is represented in the fol- 

 lowing tabulation J an examination of wliich shows some interesting facts. The total 

 number of species recorded is 288. Of these, 7 are found in each of the 5 regions; 

 40 are known from all of the regions except the Arctic; 16 are known from Bering 

 Sea^ Central Alaska, and Southeast Alaska, but not from either of the other 2 

 regions. Twenty-two are peculiar to Puget Sound region, 15 to Southeast Alaska, 

 14 to Central Alaska, 55 to Bering Sea, and only 1 (Argyrosomus lucidus) to the 

 Arctic. There are 11 anadromous and IS strictly fresh-water species. 



The great mnnber of species from Bering Sea shows how much more thor- 

 oughly that region has been studied than have Central and Southeast Alaska; it 

 does not necessarily indicate a decidedly richer fauna. 



Family and species. 



3 M 



M o 



u 





IlEPTATREMID.iv: 



Polistotreina deani 



Petrhmyzdnid-K: 



Entosphonus tridentatus 



Lampetra aurea 



Squalid^; 



Squalus sucklii 



Dalatiidje: 



Somuiosus microcephaliis 



Squatinid.e: 



Squatina squatina 



Rajid.e: 



Raja binoculata 



parmifera ' i x 



aleutica 



trachr.ra I 1. . . 



abvssicola X I--- 



Chim-erid.e: i 



Hydrolagus colliei X I X 



Acipenserid.'E: I 



Acipenser medirostris X I - - - 



Catostomid-e: 



Catostomus catostoimis._ '... 



Synaphobranchid.e: [ 



Histiobranchus bathybius 



Nemichthyidjc: ; j 



Avocettina gilli I X 



Clupeid^: I 



Clupea pallasii i x X 



Alosa sapidissiraa X X 



Salmonid.^: j I 



Coregonus kennicotti i ... 



quadrilateralis I 1... 



nelsoni '.,. 



Argj^rosomus pusillus I 1... 



laiirettie j . . . 



lucidus I ... 



alascanus I I . . . 



Family and species. 



CO o 





Salmonid.e— Continued. 



Stenodus mackenzii 



Oncorhynchus gorl)Uscha 



keta 



tschawytscha 



kisutch 



nerka 



Salmo clarkii 



gairdneri 



irideus 



Cristivomer namayeush 



Salvelinus malma 



Thymallid.e: 



Thyraallns signifer 



Aroextiniike: 



Mallotus villosus 



Thaleichthy s pacificus 



Osmerus tlialeichthys 



dentex 



albatrossis 



Hyporaesus pretiosus I X j X 



oiidus ' I... 



Leuroglossus stilbius 1 '... 



Microstomid.e: I I 



Bathyhigiis borealis I ... 



Myctophid.e: 



Lanipanyctus gemmifer 



Nannobracliiura leucopsarum. . 



namiochir . 



Diaphus tbeta 



Chauliodontid.e: 



Cyclothone microdon 



Chauliodus macowni 



Pl.\gyodontid.e: 



Plagyodus aesculapius 



borealis 



NOTACANTHID.^: 



Macdonaldia challengeri 



X 



