JORDAN AND RICHARDSON: FISHES OF THE ISLAND OF FORMOSA Aree 
91. Polydactylus zophomus Jordan & McGregor. 
Kotosho (Jordan & Evermann) (as P. plebeius). 
92. Eleutheronema tetradactylum (Shaw). (Polydactylus rhadinus Jordan & 
Eyvermann.) 
\ 
Fig. 10. Eleutheronema tetradactylum (Shaw). (After Jordan & Evermann, Proc. U. 8. N. M., Vol. 25. p.351.) 
Two specimens, respectively ten and twelve inches long, from Takao. De- 
scribed from Formosa by Jordan & Evermann as Polydactylus rhadinus. Our speci- 
mens agree fairly well with the published figure of Jordan & Evermann. 
The genus Eleutheronema Bleeker may perhaps be retained as defined by the 
absence of the air-bladder. This is present in Polydactylus. 
Family HOLOCENTRID&. 
93. Ostichthys japonicus (Cuvier & Valenciennes). 
Formosa (Jordan & Eyermann). 
Family SCOMBRID&. 
94. Scomber japonicus Houttuyn. 
Formosa (Jordan & Evermann). 
95. Rastrelliger kanagurta (Russell). 
Formosa (Jordan & Evermann). 
96. Euthynnus alleteratus (Rafinesque). 
Three specimens ten inches long from Takao. Formosa (Jordan & Evermann). 
The genus Huthynnus Liitken should apparently be separated from Gymnosarda 
(nuda). The latter has the corselet scaleless, covered by wrinkled skin (Ritippell). 
97. Scomberomorus commersoni (Lacépéde). 
(Native name 7 to.) 
One specimen twenty-one inches long from Takao. 
98. Scomberomorus guttatus (Bloch & Schneider). 
(Native name Be ka.) 
