434 Dr. A. Giinther on neio Fishes from Japan. 



wliicli the middle is the longest, corresponding to a strong 

 median keel of the scale. Uniform greyish. 

 Off Inosima. 



Raja isotrachys. 



Snout rather produced, the anterior margins meeting at 

 nearly a right angle. The width of the interorbital space 

 equals the length of the orbits. The distance between the 

 outer margins of the nostrils equals their distance from the 

 end of the snout. Teeth small, each with a point directed 

 backwards towards the interior of the buccal cavity. Outer 

 pectoral angle rounded ; but the margins of the fin would meet 

 at a right angle. Body and tail entirely covered on the upper 

 surface with minute asperities, each with a stellate base. No 

 spines on the superciliary margin. A sifigle small spine in 

 the middle of the back. A series of rather strong spines 

 (eighteen) along the median line of the tail, none on the sides. 

 Upper parts uniform brownish grey ; lower parts smooth, 

 brownish black. 



Coast of Southern Japan. 



Sehastes macrocMr. 

 D. 14 I i. A. I P. 17/5. L. lat. ca. 45. 



The height of the body is contained thrice and one fourth 

 in the total length without caudal ; the length of the head 

 twice and a half. Scales rather regularly arranged. Eye 

 very large, one third the length of the head, much longer than 

 the snout. Mouth wide ; the maxillary extending to behind 

 the middle of the eye. The bands of intermaxillary teeth are 

 of moderate breadth ; but those of the vomer, palatines, and 

 mandible are very narrow. Interorbital sjjace flattish, scale- 

 less, narrow, its width being only two fifths of the diameter of 

 the orbit. Occipital region flat, with some rudimentary scales. 

 A series of spines runs along each side of the forehead and 

 occiput. It consists of a spine in front of the orbit, three 

 above it, and two on each side of the occiput. Infraorbital 

 ridge Avith strong spines. Prffioperculum with .five pointed 

 spines on the margin. Each ramus of the mandible with five 

 large muciferous apertures. Dorsal spines rather feeble ; the third 

 to the sixth are the longest, two fifths of the length of the head. 

 Anal spine stronger, but shorter than the longest of the dorsal. 

 Caudal truncated. The pectoral fin is extremely broad, the 

 five or six lower rays being elongated beyond the extremity 

 of those next above them. Their extremities are somewhat 

 thickened j and they, like the similar outer ventral rays, serve 



