FISHES COLLECTED IN JAPAN. 283 



53. OPHISTJRUS MACRORHYNCHOS. Bleecker. 



Ophisurus serpens, T. and S., Faun. Jap., 264, pi. 115, fig. 1. 

 " " Kaup. Archiv. Naturges, 1856, 2, p. 44. 



" macrorhynchos, Bleecker. Muraenoiden &c., p. 28 (1852.) 



Notes. — From Simoda, 2 figures, one 4 feet 6 inches long, the other 2 feet 2 inches. The 

 small one named Unagi. 



Bleecker, in his paper on the Indian Muraenoids, in the 25th vol. of the Transactions of the 

 Batavian Society, separates this species from the Serpens of the Atlantic, with a notice of their 

 difference. 



54. MTJRAENA KIDAKO? T. and S. 



Muraena kidako, Temm. and Schleg., Faun. Jap., Pisces, 266, pi. 117. 



PLATE XI, fig. 1. Natural size. 



Notes. — From Simoda, (17^ inches.) 



This figure varies somewhat from the one given in the Fauna Japonica. It may he a young 

 specimen of that species. The ground color of the whole body is a light brown, becoming 

 pinkish towards the tail. The whole surface is dotted, blotched, and striped rather irregularly 

 with darker brown. No other colors on the drawing. Irides white. Head rising to hack of 

 eyes ; lower jaw rather the shortest ; the gape of the mouth large, reaching back to twice the 

 distance of the eyes from the snout. Height of body back of the head § inches. Dr. Kaup, in 

 the before quoted paper on eels, does not enumerate this species, hut as it resembles the 31. Minor 

 of T. and S., which he places in his new genus Poecilopliis, it may possibly belong to it also. 



55. TETRAODON BICOLOR, N. S. 



Notes. — From Simoda, (7|- inches.) 



The figure is colored light green over the back of head and body, the lower parts being pale 

 blue. Back and sides, from the eyes to behind the dorsals, with about forty small brown spots 

 on each side of the body, on the green ground color ; pretty regularly scattered. Irides bright 

 yellow. All the fins pale dusky black. 



Form increasing rapidly in height from the obtuse snout to the pectorals, thence tapering 

 gradually to the tail. Eyes large and oval, 1\ inches from snout, and | inch in diameter. 

 Pectorals 2\ inches from snout, and 1^ long. Dorsal 5 inches from snout, f high. Anal Sc- 

 inches from snout, and much smaller than dorsal. Caudal deeply lunate, with pointed lobes, 

 its base 6| inches from snout. No spines pores or lines are indicated in the drawing. 



In its proportions it comes nearest to T. Argenteus of T. andS., but differs from all the species 

 of the genus in color. 



