308 EXPEDITION OF THE "ALBATROSS," 1899-1900. 



ZANCLIDAE. 

 Zanclus canescens (Linne). 



Bleeker, Atlas Ichth. 1877-78, 9, p. 77-78, tab. 360, Chact., tab. 4, fig. '.i. Ji)KD.\n it Kvekm.wn, 

 Bull. U. S. Fish Comm., 190.5, 23, pt. 1, p. 382, pi. .57. Jordan & Seale, Bull. U. S. Bur. Fish., 

 1906, 25, p. 350. 



Chaetodon canescens Linne, Syst. Nat. cd. 10, 1758, ]). '272. 



No. A175, 6 inches long from Jaluit, Marshall Islands. 



No. 08840, M. C. Z. 29790, 2| inches long from Funafuti, Ellice Islands. 



TEUTHIDIDAE. 



Teuthis nigricans (Linne). 



Chaetodon niyricans Linne, Sy.st. Nat. ed. 10, 1758, p. 274. 



Hepalus nigricans Jordan & Seale, Bull. l^. 8. Bur. Fish., 1900, 25, p. .351. 



No. 08873, a specimen 51 inches long from Suva, Fiji Islands. 



Teuthis elongatus (Laiepede). 



fChaelodon elongatus Lacepede, Hist. Nat. Poi.ss., 1802, 4, ]>. 471, fig. 2. 



Acanthurus nigros Gijnther, Cat., 1861, 3, p. 332. FLschp dpr Siidsee, 1875, 4, p. 110. 



Two specimens from Truk, Caroline Islands, Nos. 09059, I§ inches long, and 

 09052, M. C. Z. 29582, ill inches long. The last has the following measure- 

 ments, dorsal IX, 272; anal III, 2b\; scales minute; 11 lobate teeth in each jaw; 

 the ridges of the larval form are indicated on the cheek and on the throat. Gen- 

 eral color light purplish brown, a broad silvery area as wide as snout extending 

 from belly to a little above pectoral; dorsal, ventral, and anal dusky; pectoral 

 and caudal pale; trace of a yellowish band across base of caudal. Number 

 09059 seems to differ from the above only in the fin raj's which are: dorsal IX, 

 26; anal III, 24. 



Because of the small size of these specimens it is impo.ssible to identify (hcni, 

 with certainty, but they agree more nearly with Acanfhiints nigros (liinther 

 especially in the number of teeth antl the fin fonniilac than with any other 

 described species. 



