V °i889. n '] PROCEEDINGS OF THE NATIONAL MUSEUM. 103 



smaller spots. A dusky shade over operele ; skin lining- opercle and 

 shoulder girdle dark, the black markings surrounded by yellow. Adi- 

 pose fin dark, edged with pale; caudal not barred, inner rays dusky; 

 pectorals and dorsal somewhat dusky ; other fins pale. Tip of chin 

 scarcely dusky. 



This species is known from numerous specimens dredged at a depth 

 of 33 fathoms in Stations 2795 and 2797. The largest are about 8 inches 

 in length. 



It is named for Prof. Barton W. Evermann. 



5. Synodus jenkinsi sp. nov. 



Diagnosis — Closely allied to Synodus seitulieeps Jordan & Gilbert, 

 but the head larger, 3f in body ; ventrals 1^ in head and 6 rows of scales 

 on cheeks. 



Type: No. 41,171, U. S. National Museum. 



Hab. — Pacific Ocean, oft coast of Colombia; Stations 2795 and 2802; 

 8° 6' 30" N., 78° 51' W., and 8° 51' (!), 79° 31/ 30" W. ; also from Guaymas. 



Description. — Head about 3J to 4 in length to base of caudal ; depth, 

 6| to 7. D. 1, 10 or 11 ; A. 1, 13. Scales, 5-62 to 65-G; G rows on cheeks. 



Body slender, subterete, depressed. Snout broadly triangular, little 

 pointed, 3| in head, its length about equal to its breadth at base. Mouth 

 large ; maxillary 1| in head. Interorbital area concave, rugose, slightly 

 broader than eye, 5£ in head ; supraorbital, finely striate, with serrulate 

 edge. 



Origin of dorsal midway between adipose fin and anterior margin of 

 pupil; free margin of fin concave; anterior rays of dorsal not extending 

 so far as the last when depressed ; last ray filamentous and half length 

 of largest; fin higher than long by an eye's diameter. 



Lower jaw included; teeth moderate. Lateral line without a keel. 

 Tip of ventrals reaching slightly more than half way to vent; their 

 length If in head. Pectorals reaching root of ventrals, 2 in head, and 

 longer than snout and eye in larger specimens. Upper lobe of caudal 

 the longer, 1^ in head. 



Color, brownish olive, white below ; scales on back with paler specks ; 

 a few rows of scales below lateral line with numerous black dots ; head 

 not marbled ; jaws not spotted, tip of lower black ; inside of opercles 

 dark ; lining of shoulder girdle yellow. Pectorals and caudal dusky, 

 former tipped with pale. Adipose fin dark, margined with paler ; lower 

 fins pale. 



This species is known from numerous specimens, dredged at Station 

 2797 in 33 fathoms and at Station 2802 in 16. The largest is 13 inches 

 in length. Specimens were also obtained by Jenkins and Evermann at 

 Guaymas. The species is named for Dr. Oliver P. Jenkins. 



6. Ophisoma nitens sp. nov. 

 Diagnosis.— Related to Ophisoma heterognathus (Bleeker), but with 

 the body (head and trunk) contained 2§ times in tail ; eye, 7 in head. 



