364 On new Fishes from Japan. 



Diagramma aporognathus. 



Deptli of body 3.^-3^ In the length, length of head 3|-B4. 

 Snout as long as or slightly longer than eye, the diameter of 

 wliich is 3| in the length of head, interorbital width 3^-3j. 

 Jaws equal, or the lower very slightly projecting; lower jaw 

 without pores ; maxillary extending to below the anterior 

 margin of eye. 24 gill-rakers on the lower part of the ante- 

 rior arch. Scales 110-116 ^^i- I>orsal XIV 17, the fourth 

 to the seventh spines the longest, ^-§ the length of head ; 

 rays of the soft fin subequal in length, j the length of head. 

 Anal III 8. Pectoral nearly as long as the head. Caudal 

 apparently emarginate (broken in each specimen). Caudal 

 peduncle 2|^ as long as deep. Greyish, with dark oblique 

 undulating stripes along the series of scales. 



Two specimens, 260 and 270 mm. in total length, from the 

 Inland Sea. 



Oohius [Ctenogohius) atriceps. 



Depth of body 4| in the length, length of head 3|. Snout 

 longer than eye, the diameter of which is 6\ in the length of 

 head and a little less than the interorbital width. Jaws 

 equal anteriorly ; maxillary not extending to below the 

 middle of eye. Head naked; nape covered with small 

 scales. Scales in a longitudinal series 38, in a transverse 

 series between second dorsal and anal 13. Dorsal VI 12 ; 

 rays of the spinous dorsal produced into filaments ; rays of 

 the second dorsal slightly inci easing in length to the last, 

 wliich is \ the length of head and, when laid back, reaches 

 the caudal. Anal 11. Pectoral f the length of head; ventral 

 I the length of head, extending a little more than ^ of the 

 distance from its base to the origin of anal. Caudal rounded. 

 Caudal peduncle longer than deep. Olivaceous ; liead 

 blackish ; fins dusky, the dorsal and anal light at the base, 

 the pectoral with a pale transverse bar on its basal part. 



A single specimen, 80 mm. iu total length, from the 

 Inland Sea. 



A cli Hog nath us long ip in n is. 



Pharyngeal teeth 5 — 5, sickle-shaped, the sides with trans- 

 verse strige, the edges entire. Depth of body 2-2^ in the 

 length, length of head 4-4|^. Snout | the diameter of eye, 

 which is 2^-2| in the length of head and equal to the inter- 

 orbital width. Lower jaw a little shorter than the upper; 

 maxillary hardly reaching the vertical from the anterior 



