98 BULLETIN OF THE BUREAU OF FISHERIES. 



247. Acanthurus unicornis (Forskal). 



One specimen (young) from San Fabian (no. 3900: length 2.5 in.). 



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



Acanthurus unicornis, Jordan & Evermann, Bull. U. S. Fish Comm., xxm, pt. 1. 1903 (190.5), 402 (Honolulu; Hilo: Puako 

 Bay, Hawaii). 



Family SIGANIDjE. 



248. Siganus javus (Limiams). 



Two specimens from Bulan (no. 4092 and 4093: length 9 anil 10 in.). Head 4.1 in length: depth 2.1s: 

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



T. uthis javus Linnanis. Syst. Nat., ed. xn, 507, 1766; Day, Fishes India, 165, pi. xxxix, fig. 5; Giinther, Cat., in, 315 (Ceylon; 



Singapore; Amboyna; Hobson Bay). 

 Amphacanthus jam.*, Cuvier & Valenciennes, Hist. Nat. Poiss., x, 86 (118), (Pondicherry). 



249. Siganus fuscescens (Houttuyn). Palil. 



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

 from Bacon (no. 3382, 3622, 3623, 3923, 3924, 3440, 3.500, 3501, 3.502. 3.513, 3851, 4006, 4007. 4143. 4114: 

 length 1.5 to 8.5 in.), 2 from Jolo (no. 3518 and 3639), and 1 from San Fabian (no. 3S64). 



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

 perfectly, even to the bars on the caudal. 



' ( ntrogaster fuscescens Houttuyn, Yerh. Hon. Maat. Weet. Haarlem, xx, 17S2, 333. 

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

 /"' uthis fuscescens, Giinther, Cat., in, 321 (coast of 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. 97 (133). 1835, Java. 

 I, nun: tiirgata, Giinther, Cat., in, 323 (Philippines; China); Day, Fishes India. 166, pi. xi, fig. 3 (Audamans). 



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 3802; length 3 in.), and one very large 

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



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

 Tcuthis vermiculata, Giinther, Cat., in, 317 (Philippines; Amboyna); Day, Fishes India. 166. pi. xl, fig. 1 



252. Siganus lineatus (Cuvier & Valenciennes i Samaral; Mororosa. 



Two from Bulan (no. 4056 and 4057; length 9.7.5 and 10.5 in.), and one from Bacon (no. 4039; length 

 10.2 in.). 



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

 Teuthis lincala, Giinther, Cat., in, 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 preoperele 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 vn, 9; ventral i, 3, i. 



Body greatly compressed, elongate, t be ventral and dorsal 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 



