y8 BULLETIN OF THK BUREAU OF FISHERIES. 



247. Acanthurus unicornis (Forsk8,l). 



One specimen (young) from San Fabian (no. 39G0; length 2.5 in.). 



C/iA'lodon unicornis ForskU, Descr. Anim., 63, 177.5, Djidda. 



Acanthurus unicornis, J ord&n & Everraann, Bull. U. S. Fish Comm., xxni, pt. 1, I'.tOiJ (190J), 402 (Honolulu: Hilo; Puako 

 Bay, Hawaii). 



Family S1G.\.\1D.€. 



248. Siganus javus (Linna-iis). 



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

 snout 2.1 in head: eye 3.3.5. Dorsal xiii, 10; anal vii, 9. 



Truthis javus Linnffius, Syst. Nat.,ed. xu, 507, 17iW: Day, Fishes India, 165, pi. xx.\i.\, fig. 5: Gunther, Cat., ni, 315 (Ceylon; 



Singapore; Amboyua; Hobson Bay). 

 Amphacanihus javus, Cuvier & Valenciennes, Hist. Nat. Poiss., x, S6 (US), (Pondicherry). 



249. Siganus fuscescens (Houttuyn). Palit. 



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

 from Bacon (no. 3382, 3622, .3623, 3923, 3924, 3440, 3500, 3501, 3.502, 3513. 3851, 4006. 4007, 4143, 4144; 

 length 1.5 to 8.5 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. 



Centrogasler fuscescens Houttuyn, Verb. HoU. Maat. Weet. Haarlem, xx, 1782, 333. 

 Amphacantkus fuscescens .Richardson, Ichth. China, 243, 1846. 

 Teuthis fuscescens, Gunther, Cat., ni, 321 (coast of Nagasalci). 



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. 



Amphacantkus virgatus Cuvier & Valenciennes, Hist. Nat. Poiss., x, 97 (133), l.S;35, Java. 



Tcuthis virgata, Gunther, Cat., ni, 323 (Philippines: China); Day, Fishes India, 166, pi. XL, fig. 3 (Andamans). 



251. Siganus vermiculatus (Kuhl & Van Hasselt). Pnqut: Alama. 



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 3,802: length 3 in.), and one very large 

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



Amphacanthus vermiculatus Kuhl & Van Hasselt in Cuvier A: N'alenciennes, Hist. Nat. Poiss., x, 92(126), 1835, New Guinea. 

 Tcuthis vermiculata, Gunther, Cat., in, 317 (Philippines: Araboyna); Day, Fishes India, 166, pi. XL, fig. 1 



252. Siganus Uneatus (Cuvier & Valenciennes). Samnial: Mororosa. 



Two from Bulan (no. 40.56 and 40.57: length 9.75 and 10.5 in.), and one from Bacon (no. 4039; length 

 10.2 in.). 



Amphacanthus Uneatus Cuvier i- Valenciennes, Hist. Nat. Poiss., x, 95 (130), pi. 28ii, is:j5, Vanicoloand New Guinea. 

 Tcuthis lineata, Gunther, Cat., ni. 322. 



253. Lo unimaculatus Evermann & Seale, 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; preopercle 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 alongside of snout; interorbital 3.75; pectoral 1.45; ventral scarcely shorter than pectoral; 

 dorsal xiii, 10; anal vii, 9: ventral i, 3, i. 



Body greatly compressed, elongate, the ventral and doi-sal outlines 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 

 convex: 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 



