FISHES FROM BERING SEA AND KAMCHATKA. 



69 



fin, and a much larger pair opposite the interval between first and second dorsals. The supraocular 

 series contains 4 plates increasing in size posteriorly and often 2 or 3 behind the line of the head, 

 diminishing rapidly in size; the line quickly loses its identity at or in advance of the middle of the 

 length. 



In E. orbis the throat contains several series and is usually wholly invested with spinous plates, 

 and the spinous dorsal is covered with scattered plates for its entire extent. In E. spinosus the throat 

 is covered with soft rounded papillae, with few or no plates, and the spinous dorsal has but a single 

 series of spinous plates near and parallel to its margin. 



Several young specimens of E. orbis were taken on Petrel Bank, Bering Sea, at stations 4777 and 

 4779; depths 52 and 54 fathoms. 



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KiG. 15. — Eumicrotrcmus phrynoidcs, new species. Type. 



Eumicrotremus phrynoides, new species. (I'ig. 15.) 



Type 38 mm. long, from station 4779, on Petrel Bank, Bering Sea; depth 54 to 56 fathoms. 



Measurements in hundredths of length to base of caudal: Head 49; eye 20; interocular width 28; 

 distance from anterior to posterior nostril 7; distance between outer angles of mouth 34; width of gill- 

 slit 9; greatest width of body 55, equaling the greatest depth; base of soft dorsal 22; base of anal 18; 

 length of caudal 25; diameter of ventral disk 32. 



Dorsal vii-io; anal g; pectoral 26. 



Body tadpole shaped, not greatly compressed anteriorly, its dcptli and width equal, abruptly com- 

 pressed behind the spinous dorsal; cheeks nearly vertical; interorbital space wide, gently concave; 

 eyes large, prominent, the upper rim entering the profile; the anterior profile along middle of top of 

 head descends in an almost straight oblique line from occiput to snout; anterior nostril on level of 

 middle of eye, the upper margin of upper lip on level of lower margin of pupil; snout e.Ktremely short, 

 the mouth with little lateral cleft; anterior nostril in a short wide tube; posterior nostril tube shorter 

 and much narrower than the anterior, in this respect differing strikingly from E. orbis and E. spinosus, 

 in which the long slender posterior nostril tube resembles a supraorbital tentacle; teeth small, conical, 

 arranged within tlie bands in curved scries, as in Cyclogasicr, the outer series along the margin of the jaw 

 laterally, but not reaching tlie medial line, successive series becoming more and more oblique to the 



