PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 147 



moved from it, this character, combined with the emarginate caudal, will 

 entitle the species to rank as the representative of a distinct genus for 

 which the name N'ofogrammns is here proposed. 



The species is dedicated to my preceptor in zoology and medicine. Dr. 

 J. T. Eothrock, of West Chester, Pennsylvania. 



Muraenoides mazillaris, n. (?) s. 



'? Murcenoidcs fasciatus, (Bl. Schn.) 



Catalogue number of the single type specimen 23999, collected in 1872 

 by Mr. Henry W. Elliott, at Saint Paul Island, Bering Sea. 



Br. vi— v; D. 88; A. ii, 43; V. % 1. 



This species, as well as M. ornatus Girard, may be at once separated 

 from 3f. nebulosus Schleg. by its scaleless head. 



When the mouth is closed the cleft is very little oblique and the tip 

 of the lower jaw is in a horizontal through the middle of the eye; the 

 width of the mouth across the tips of the maxilltie equals the length of 

 the pectoral and almost one-half the length of the head. The length of 

 the maxilla equals one-half the distance from the end of the snout to 

 the beginning of the dorsal. The mandible is as long as the pectoral. 



The greatest height of the body slightly exceeds the length of the 

 head and equals one-seventh of the total length without the caudal; it 

 equals, also, one-fourth of the distance from the end of the snout to the 

 beginning of the anal. The length of the head is contained 8J times in 

 the total length. The width of the interorbital space is a little less than 

 the diameter of the eye, which equals the length of the snout. The 

 length of the pectoral equals one-half the height of the body at the 

 origin of the anal; the greatest width of the fully expanded tin is nearly 

 equal to the length. The ventral spine is two-thirds as long as the eye. 



The greatest height of the dorsal is not far from the origin of the fin, 

 and equals one half the length of the mandible. The length of the 

 caudal equals one-half the length of the head. The vent is not far be- 

 hind the middle of the total length, and is directly under the 43d dorsal 

 spine. 



Colors from the alcoholic specimen : A brown band occupies the whole 

 interocular space, and is preceded and followed by a whitish band only 

 one-half as wide. Immediately below the eye a brown band, whose 

 width equals one half the length of the eye, extends down to the throat; 

 a whitish band a little wider than the brown one is immediately behind 

 it. It seems as if the fresh fish may have on this part of the head two 

 whitish bands with a brown one between them. Back with a series of 

 11 rounded or oblong light spots, the longest of which is one-half as 

 long as the head; all of these spots include at the top a rather large 

 brown spot and below numerous little brown spots. Between the first 

 and second large light blotches are two very dark spots on the dorsal 

 membrane, and between the dark spots there is a light one of similar 

 size. On the sides are about 26 light bands, most of them very distinctly 



