436 Dr. A. Giintlier on new Fishes from Japan. 



a quadrate depression, which is rather broader than long and 

 surrounded by spines. The maxillary does not extend hack- 

 loards to below the middle of the eye. All the cutaneous 

 appendages on the head, body, and fins are well developed. 

 The fourth and fifth dorsal spines are the longest, two fifths 

 of the length of the head, and equal to the second of the anal 

 fin, which, however, is stronger. Eight of the pectoral rays 

 are branched. Body and fins marbled with the usual colours 

 of this genus, but without any peculiar markings. The axil 

 of the pectoral is scarcely spotted ; and the lower part of the 

 head is white. 



Market of Yokohama. 



Polymixia japonica. 

 D. |. A. 4 V. 1/6. L. lat. ca. 60. L. transv. 8/17. 



The upper jaw projects more beyond the lower than in 

 either of the two other species. The maxillary extends to 

 below the hind margin of the eye, which is one third of the 

 length of the head. Six vertical series of scales on the cheek. 

 Ventral fins short, rather more than one third of the length of 

 the head. Top of the dorsal and extremities of the caudal 

 lobes black. 



Off Inosima. 



Platycephalus rudis. 

 D. 1 1 8 I 11. A. 11. L. lat. ca. 70. 



The length of the head is one third of the total without 

 caudal ; and its width between the pra?opercular spines is more 

 than one half of its length. All the bones on the upper sur- 

 face and the scales covering its sides are rough. The space 

 between the eyes is concave, its width being one half of the 

 vertical diameter of the eye. Superciliary edge serrated ; 

 ridges with distant spines along the infraorbital and above the 

 operculum, the central ridges of the crown of the head being 

 rather obscure. Opercular ridge not serrated. Three spines 

 at the angle of the pra^operculum, the lower of which is the 

 smallest, the upper the longest, but only half the length of 

 the eye. Only the foremost part of the lateral line is spiny. 

 Ventral fins reaching to the anal. Greyish, with black dots 

 on the trunk and operculum. The spinous dorsal and ven- 

 tral black, the second dorsal and pectoral with blackish dots. 

 Caudal irregularly marbled with blackish. 



Market of Yokohama. 



