PfiOCEKDI.NGS OF UNITED STATES NATIONAL MUSEUM. 



87 



luargiu slightly couvex wlieu opened, the principal rays twice bifurcate. 

 Pectorals small ; that of colored side contained about 8^ times in the 

 total length} rays twelve in number, once bifurcate. Pectoral of blind 

 side scarcely three-fourths as long as that of the colored side; rays nine 

 or ten, some of them bifurcate. Yentrals very small, inserted about the 

 width of the pectoral base in advance of the anterior axil of that hn ; 

 theii' length contained more than five times in that of the head. Late- 

 ral line straight, passing along the median line of the side of the body 

 and of the caudal, about 14:0 scales from its origin to the base of that 

 fin. Scales very small, smooth, becoming smaller along the dorsal and 

 abdominal margins ; smaller scales continuing for some distance upwards 

 and downwards on the bases of both the dorsal and anal, upon both bhnd 

 and colored sides, especially upon the latter, where scales cover the 

 whole siu'face between as well as upon the rays. The bases of the pec- 

 torals and caudal are also covered with scales on both sides. On the 

 fore part of the anal, the scales reach to the tips of the rays. The scales 

 upon the fins are much smaller than those upon the body. Scales on 

 blind side smooth ; snout scaleless. Color nearly uniform dark blackish 

 gray ; the scales covered on their exposed portion with black points, 

 which cannot be distinguished by the naked eye. Blind side opaque 

 white, mth numerous small black dots evenly distributed. Fins on col- 

 ored side with the membrane light slate-color, sprinkled with small black 

 dots; the rays and scales of the same color as the body. Distal margins 

 of all the fins considerably darker. The black dots extend to the inte- 

 rior of the mouth, covering the hyoid surfaces, and the pliaryngeal teeth 

 are tipped with reddish orange. 



Dimensions. 



Total length to tip of caudal, in inches 



Length without caudal, about 



Greatest depth, about 



Length of head 



Length of pectoral, blind side 



Length of pectoral, ctdored side 



Length of ventrals 



Diameter (longitudinal) of eye 



Width of interorbital space 



Length of snout, horizontal, from lower eye 



Distance from tip of mandible to origin of anal 



Width from tip of highest rays of dorsal to tips of ditto of 

 anal 



Width of caudal peduncle in narrowest part 



Length of snout from lower eye 



Distance from tip of maudiblo to origin of anal 



Length without caudal, about , 



Width from tip of dorsal to tip of anal rays 



Width of caudal peduncle , 



Length of lower jaw 



Origin of anal to lateral lino 



Number of dorsal rays 



Number of anal ravs 



No. 1. 





No. 2. 



1| 



No. 3. 



2 



7f 



3/a 



O 7 

 ■'18 



1 



3/8 



104 

 87 



* Damaged. 



102 

 84 



t Scarcely. 



10t3 



lis 

 lA 



(*) 



m 

 99 



80 



No. 4. I No. 5. 



8/b 

 7t^s 



i 

 li 

 101 

 8C 



