98 BULLETIN OF THE BUREAU OF FISHERIES. 



247. Acanthurus unicornis (Forskal). 



One specimen (young) from San Fabian (no. 3960; length 2.5 in.). 



Chstodon unicornis Forskal, Descr. Anim.. 63, 1775. Djidda. 



Acanthurus unicornis, Jordan & Evermann, Bull. U. S. Fish Comm., x.xin. pt. 1, 1003 (1005), 402 (Honolulu; Hilo; Puako 

 Bay, Hawaii). 



Family SIGAXID^. 



248. Siganus javus (Liumcus). 



Two specimens from Bulan (no. 4092 and 4093; length 9 and 10 in.). Head 4.1 in length; depth 2.18; 

 snout 2.1 in head; eye 3.35. Dorsal xm, 10; anal vn, 9. 



Tcuihis javus Linnaeus, Syst. Nat., ed. xu, .507, 1766; Day, Fishes India, 165, pi. xxxix, fig. 5; Gunther, Cat., Ill, 315 (Ceylon; 



Singapore; Amboyna; HobsonBayi. 

 Amphacanthus javus, Cuvier & Valenciennes, Hist. Nat. Poiss., x, 86 (US), (Pondicherry). 



249. Siganus fuscescens (Houttuvn). Palit. 



Apparently a very abundant species in the Philippines. The present collection contains 747 specimens 

 from Bacon (no. 33.82, 3622, 3623, 3923, 3924, 3440, 3500, 3501, 3502, 3513, 3851, 4006, 4007, 4143, 4144; 

 length 1.5 to S.5 in.), 2 from Jolo (no. 3518 and 3639), and 1 from San Fabian (no. 3864). 



These have been carefully compared with specimens from Japan, Cavite, and Panay. They agree 

 perfectly, even to the bars on the caudal. 



Centrogaster fuscescens Houttuyn. Verh. Holl. Maat. Weet. Haarlem, xx, 17S2, 333. 

 Amphacanthus fuscescens .Richardson, lchth. China, 243, 1*46. 

 Teuthis fuscescens, Gunther, Cat., in, 321 (coast ot Nagasaki). 



250. Siganus virgatus (Cuvier & Valenciennes). 



One specimen from Bacon (no. 3233; length 7.5 in.). Readily known by the bluish transverse lines on 

 snout and interorbital and the oblique dark lines downward and forward from dorsal. 



Amphacanthus virgatus Cuvier & Valenciennes, Hist. Nat. Poiss., x, 07 (133), 1835, Java. 



Teuthis virgata, Gunther, Cat., in. 323 (Philippines; China); Day, Fishes India, 166, pi. xx, fig. 3 (Andamans). 



251. Siganus vermiculatus (Kuhl & Van Hasselt). Pugut; Alarm. 



Seven specimens from Zamboanga (no. 3251 to 3257; length 3.5 to 6.75 in.), 4 from Bacon (no. 3303 to 

 3306; length 3 to 4 in.), 3 from Philippines (no local label, no. 3800 to 3N02; length 3 in.), and one very large 

 specimen from San Fabian (no. 4037; length 11 in.). 



Amphacanthus vermiculatus Kuhl & Van Hasselt in Cuvier & Valenciennes, Hist. Nat. Poiss.. x, 92 (126), 1S35, New Guinea. 

 Teuthis vermiculata, Gunther, Cat., Ill, 317 (Philippines; Amboyna); Day, Fishes India, 166. pi. XL, fig. 1 



252. Siganus lineatus (Cuvier & Valenciennes). Samaral: Mororosa. 



Two from Bulan (no. 4056 and 4057; length 9.75 and 10.5 in.), and one from Bacon (no. 4039; length 

 10.2 in.). 



Amphacanthus lineatus Cuvier & Valenciennes, Hist. Nat. Poiss., x, 95 (130), pi. 286, 1835, Vanicolo and New Guinea. 

 Teuthis lineata, Gunther, Cat., in, 322. 



253. Lo unimaculatus Evermann & Scale, new species. 



Head 3.3 in length to base of caudal; depth 2.5; eye 4 in head; snout 1.9; opercle with a number of low 

 thin vertical ridges; preopeicle with somewhat similar oblique lines; lower edge of preopercle finely dentate; 

 scales cycloid and very minute on body, the head nearly naked, having only a few scattered nonimbricated 

 scales below eye and along side of snout; interorbital 3.75; pectoral 1.45; ventral scarcely shorter than pectoral ; 

 dorsal xm, 10: anal VII, 9: ventral i, 3, i. 



Bod} - greatly compressed, elongate, the ventral and dorsal out lines nearly parallel from nuchal crest to base 

 of twelfth dorsal spine; snout much produced, tubular, the maxillary 1.3 in eye; interorbital space but slightly 

  mi. • dorsal profile rising abruptly from behind the eye in a thin trenchant ridge: teeth in a single row, 

 uniform in size, incisor-like, brown-tipped in the upper jaw, smaller and plain white in color in the lower, about 



