50 CALIFORNIA ACADEMY OF SCIENCES. 



In front are two very large compressed teeth on each side, 

 i^ inches long, behind which is a naked space i^ inches 

 long; this is followed by three teeth ^ inches long, and 

 finally eight short knife-like teeth. Lower jaw with sym- 

 physis bare, a bifid tooth -like spine on each side of it. 

 Behind this come two long thorn-like teeth, the first ^ in. 

 long, the second 5^ in,, followed by 15 short knife -like 

 teeth. The teeth are all very sharp and directed back- 

 ward and so long that the mouth cannot be completely 

 closed. Upper pharyngeal teeth long and slender; upper 

 pharyngeals formed by the coalesced parts of the 2, 3 and 

 4 pharyngobranchials. 



Gill -rakers long, sharp and toothlike, bifid or trifid; 

 on the anterior part of the lower gill -arches they appear 

 as teeth where the arches join the hyoid. Upper lobe of 

 caudal evidently not prolonged into a filament; middle 

 rays longer than the height of the tail. 



D 39, P 15, A 17, V 9, B 7. Length of specimen, 52^ 

 inches. 



The type of this description is in the museum of the 

 California Academy of Sciences. It is in good condition, 

 only the tips of the dorsal rays being broken. The ac- 

 companying figure representing it was drawn by Miss 

 Anna L. Brown. This specimen is the only one thus far 

 preserved, excepting the original types from Alaska. 



About two years ago, however, a specimen in fine con- 

 dition was taken at Eureka, Humboldt county, Cal., by 

 Mr. Augustus J. Wile}^ and Mr. J. B. Brown, of Eureka. 

 Mr. Wiley was unable to preserve this specimen, but took 

 a series of good photographs, which were presented by 

 him to the Leland Stanford Jr. University. From one of 

 these photographs a drawing was made by Miss Anna L. 

 Brown. In view of the great interest attached to this 

 rare and singular inhabitant of the deep seas, a copy of 

 this drawing has been given. 



