Tuna Icaig-line gear appears to be an efficient method of 

 capturing the larger offshore species of fish biit gives a very poor 

 picture of the smaller surface — or .s\±)surface — dwelling species. 

 However, interesting collections have been made fpoir. the stonach 

 contents of long-line caught fishes and several previously' unrecorded 

 species were taken by that method. 



Trap lift nets are perhaps the most selective of gear, 

 their principle of operation being to catch schooleci fish, and gen- 

 erally only those attracted by lights. 



The most diversified catches from the Oref^on have been made 

 with dip nets under lights put over the side of the vessel at night 

 while drifting in offshore waters. However, these catches are mostly 

 made xip of postlarval and juvenile forms. 



It should also be pointed out that the vast majoii-ty of the 

 exploratory-fishing stations have been made in restricted depth ranges. 

 Shrimp-trawl coverage has been extensive in the ranges of 20 to 75 

 fathoms and 175 to 300 fathoms. Trawl coverage in other depth zones 

 has been poor. Consequently, it is likely that as other depth raises 

 are n.ore adequately explored, employing the present types of gear as 

 well as such relatively untried methods (in the gulf area) as fish 

 trawls, midwater trawls, and sink gp-ll-nets, this Ust of species wiH 

 be greatly augmented. 



New species which have been described originally from material 

 collected by the Oregon are indicated by "(type loc,)" inserted after 

 nvunber of the station where the holotj'-pe was collected. Original 

 descriptions may be fourri under "References," 



A question nark following the name of a species indicates 

 that the nomenclature is re3arded as unsatisfactory by the authority 

 making the identification, and a question marie following a station 

 number indicates a provisional identification for the species taken 

 at that station. In a few instances specific and even generic names 

 have been omitted because for various reasons complete identificaticns 

 have been impractical or invalidated by subsequent studies, but the 

 identifications are thought to be satisfactory through the higher 

 categories. The abbreviation "(yng,)"has been used to indicate 

 postlarval, juvenile, and young specimens. 



