236 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxi. 



length is contained 1^ times in head. The dorsal and anal are attached 

 to the entire length of the outer caudal rays, so that the outline around 

 them is unbroken. Ventrals symmetrical and well separated from 

 anal. Pectorals of both sides rudimentary, represented by a short 

 flap broader than long- in which the rays are evident. Lateral line 

 straight, continued on head over 11 or 12 scales, not reaching to upper 

 eye. Scales everywhere c3'cloid. 



Color grayish l)rown crossed with wide, dark-brown bands, rather 

 lighter in the middle, and extending to the tips of the dorsal and anal 

 rays. Four bands on head, the one at posterior part of eye divided 

 into 2; one across rudimentary pectoral and gill opening, behind which 

 are 11 bands, counting a small spot at base of caudal rays; caudal and 

 distal half of posterior dorsal and anal rays black; a round opaque 

 white spot at middle of caudal. Dorsal and anal rays opposite the 

 light bars on body are opaque white and sometimes a suggestion of the 

 same color opposite the middle of the dark bars. Dorsal, anal, and 

 caudal uniform dark on blind side growing light toward base. 



Here described from a single specimen 125 mm. long from Nagasaki. 

 It has not otherwise been recorded except from India. 



{cornutus., horned. ) 



35. PARAPLAGUSIA Bleeker. 



Plagusia (Brown) Guvier, Regne Animal, II, 1817, p. 224 {hilineata, etc.) (not 



Plagusia Latreille, 1806, a genus of Crustacea). 

 Paraplagnsia Bleeker, Atlas Pleuron., 1870, p. 26 [hilineata). 

 ? Rhinaplagusiu Bleeker, Atlas Pleuron., 1870, p. 26. 



Left side with two lateral lines, right side with one. Otherwise as 

 in Usinosita. 



[Ttapa, near; I */<(</ ifsitr.) 



52. PARAPLAGUSIA DIPTERYGIA (Riippell). 



Plagima dipteri/gia RItppell, Atlas Fische, 1828, p. 123, pi. xxxi, fig. 3 (Red Sea). 

 Plagusia marmorata Bleeker, Verh. Bat. Gen., XXIV, Pleuron, p. 20 (Amboyna); 



Nederl. Tydsch, I, p. 411.— GOnther, Cat. Fish, IV, 1862, p. 491 (Am- 

 boyna). — Bleeker, Enum. Poiss. Conn. Japon (Kiusiu). 

 Paraplagnsia inannorafa Bleeker, Enum. Poiss. Connus Japon, 1879, p. 22. 



(No locality specified, proliably Riu Kiu Islands). 



Habitat. — East Indies, doubtfully recorded from Japan. 



Head, two-ninths of total length; depth, over one-fourth. Dorsal, 

 99 to 106; anal, 75 to 85. Lateral line, 100. 



Two lateral lines on left side separated by 17 longitudinal series 

 of scales at the point of their greatest distance. Length of snout 

 two-tifths of that of head. Rostral hook very long, extending far 

 behind lower eye. Color brownish finely marbled with dark brown. 

 (Giinther. ) 



Not seen b}^ us. 



((J/?, two; TTTtpv^.^ fin.) 



