ÖFVERSKiT Al'' K. VETENSK.-AKAD. FÖRIIANDLINGAK 1 81)5, N:() {>. i\I)U 



Lengtli of body, from ti[> of snoiit to tip of middle caiidal 



rays in millimetres 207 



Depth of body in "„ of tlie abovc uieasurement 35 



Lenirth of liead in millimetres 7(J 



Length of snout in % of iengtli of head 39 



(Thus considerably more fchan in H. fiavolineatum in wliich 

 tlie length of snout is o in head, here only about 21.) 



Diameter of eye in % of lengtii of head . 20 



Interorbital Avidth » » s > . . . • 25 



The eye thus is very small coinpared with that of H. 

 fiavolineatum, in which the diameter of that organ is only 3i 

 in head; in this form 5 in head. The interorbital width is also 

 different from that of H. flavoiineatum as it is 4 in head in 

 this, but oiy in that species. 



All teeth of about equal size, villiform, no canines (conf. 

 H. flavoiineatum). When the mouth is shut the raaxillarv 

 reaches to about the vertical through the anterior margin of orbit. 

 Preopercle evenly serrate. Preorbital rather high, its least width 

 about the same as the horizontal diameter of eye, thus 5 in 

 head. (In H. flavoiineatum this measurement is 7i in head). 



Scales large; those of the anterior and middle parts of the 

 body below the lateral line in about four rows considerably en- 

 larged so that their depth is about one and a half of the depth, 

 of the greatest scales above the lateral line, and nearly double 

 the depth of the scales between the soft dorsal fin and the 

 lateral line, and still more compared with the scales of the tail. 

 The series of scales above lateral line are anteriorly to the ex- 

 tent of about ten scales from the head parallel to the lateral 

 line, but turn upward towards the dorsal fin from that place. 

 All rows of scales posterior to the tenth scale from the head 

 are running very obliquely upward and hackward, and because 

 not all scales in these upper series are of the same size the 

 rows become wavy. The rows below the lateral line run straight 

 and horizontal to under the middle of the soft dorsal, where 

 some of them curve a little upAvard, some form a curve first 



