.396 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



these marks are seasonally made. If. these zones are season indi- 

 cators, then the type specimen was in its fourth or fifth year. 



Eight series of scales separate the front of the second dorsal 

 from the lateral line series in the type and in seven paratypes, 

 but there are seven series in two paratypes. The scales on the 

 mandible, in a single row anteriorly, become biserial posteriorly. 



The lateral line below the anterior end of the second dorsal 

 suddenly dips downward, as in other species, to its position below 

 the middle of the tail. 



The first dorsal spine is concealed; the second is three-fourths 

 as long as the length to anus, but varies from a little less than 

 two-thirds to 1.05 times that distance. The second pectoral ray 

 is lengthened into a slender filament 1.4 times the length to anus 

 (varying to slightly shorter than that distance in the paratypes). 

 The outer ventral ray is always less than twice as long as the head 

 and is always shorter than the length to anus, being 0.7 of that 

 length in the type. The origin of the first dorsal is almost on a 

 v vertical with the insertions of the paired fins. The distance be- 

 tween the anus and the ventral is more than two-thirds the lengtk 

 of the head. 



The pyloric caeca are short and numerous, 61, 69, and 75 in the 

 three specimens counted. 



Color, in alcohol, deep brown, lighter below and with silvery 

 reflections on the lateral and ventral surfaces of the head and trunk ; 

 the branchiostegal membranes are dark brown, the gular mem- 

 branes light; the lower lip is white. The walls of the buccal 

 cavity are light near the mouth; the branchial cavity is lined 

 with purplish black, with a wide whitish area along the opercular 

 and branchiostegal margins. Parietal portions of peritoneum and 

 the visceral portions over all the organs except the pyloric caeca, 

 deep purplish black. Dorsal black, a little lighter on basal part 

 of fin; anal light anteriorly, but shading into black posteriorly. 

 Pectoral and ventral dark, with lighter filaments and a lighter 

 area near their lower or inner basal portions. Other specimens are 

 very much lighter in color; in these only the first dorsal is blackish, 

 and it is lighter near its base, and dusky posteriorly; only those 

 rays of the paired fins next to the filaments are dark; the dark 

 portion of the branchial cavity is brown with lighter clouding, 

 while the peritoneum shows much silvery through the dusky pur- 

 plish color. 



The distinguishing characters of this species are given in the 

 key. It is probably most closely related to G. colletti, its Japanese 

 representative, though allied with G. magnifilis, the next species 

 to be described. 



