The Fresh Water Fishes of the Island of Formosa. 263 



which is slightly broader and shorter than that of the maxillary and 

 tapers posteriorly; nostrils separated, the anterior in a long tube, 

 hanging over antero-lateral margin of snout, the posterior minute, in 

 front of eye. 



Body covered with rudimentary imbedded scales, linear in form, 

 arranged in small groups and placed obliciuely, at right angles to those 

 of neighboring groups. 



Color in formalin brownish gray above, mottled with dark brown; 

 lower parts whitish; vertical fins grayish, mottled with dark; the 

 pectoral dark gray with white outer margin. 



Length of body 375 mm. 



Described from a specimen from Giran. 



Habitat: Very common on the island, often attaining a large size. 

 My specimens came from Giran and Jitsugetsutan (Lake Candidius). 



Measurements of Anguilla mauritiana. 



Locality. Giran. 



Total length 370 mm. 



Length of head 62 



Distance of gill-opening from origin of dorsal 55 



Distance of gill-opening from the vent no 



Distance between origin of dorsal and anal 64 



Distance between tip of snout and origin of dorsal. . 113 



Length of the pectoral 17 



Length of snout 13 



Length of upper jaw 20 



Diameter of eye 5 



Interorbital space 12 



Height of body in front of vent 24 



Length of pre-anal part 170 



Length of post-anal part 205 



Giran. 

 445 mm. 



67 



60 



125 



14 



23 



6 



13 



27 

 190 

 25s 



1847- 



1855. 



51. Anguilla japonica Temminck & Schlegel. 

 Unagi (Japan); Pehmoa (Formosa). 



Anguilla japonica Temminck & Schlegel, Fauna Japonica, Poiss., p. 258, 

 PI. CXin, Fig. 2; Nagasaki.— Bleeker, Verh. Bot. Gen., XXV, p. 51; 

 Japan. — Kner, Novara Fisch., IH, 1867, p. 370; Shanghai. — ^Jordan & 

 Snyder, Proc. U. S. Nat. Mus., XXIIL 1901, p. 348; Yokohama. — Snyder, 

 Proc. U. S. Nat. Mus., XLH, 1912, p. 406; Mororan; Shiogama; Tokyo, 

 Misaki. — ^Jordan & Metz, Mem. Carneg. Mus., VI, no. 2, 1913, p. 24, 

 Fusan; Suigen, Corea. — Jordan, Sn^'der, & Tanaka, Journ. Coll. Sci., 

 Tokyo, XXXIII, 1913, p. 76; Hakodate to Nagasaki. — Ishikawa, Journ. 

 Coll. Agric. Tokyo, IV, 1914, p. 417; Japan; Formosa; Corea. 

 Murana pekinensis Baksilewsy, Nouv. Mem. Soc. Nat. Mosc, X, p. 246, 

 PI. Ill, Fig. 2; Peking. 



