246 EXPEDITION OF THE " AI,l?ATROSS," 1S99-11I()(). 



In dpiital characters our specimens agree with Bleeker's description but the 

 origin of the dorsal, so far as can be discerned, seems to be situated more poste- 

 riorly, more like M. gymnotus. 



OPHICHTHYIDAE. 



Leiuranus semicinctus (Lay & Bennett). 



Ophisurus semicinctus Lay & Bennett, Zool. Beechey's Voyage, 1839, p. (i(i, pi. 'iO, tif;. 4, 

 Leiuranus colubrinus Bleeker, Atlas Ichth., 1864, 4, p. 42, tab. 163, Mur. 11), ti;;. 1. 



One specimen, No. 09063, 6 inches long from Arhno Atoll, Marshall Islands. 



* MURAENIDAE. 



Gymnothorax richardsonii Bleeker. 



Atlas Ichth., 1864, 4, p. 85, 100, tab. 186, Mur. tab. 42, fig. 2. 

 Muraena richardsonii Bleeker, Nat. Tijds. Ned. Ind., 1852, 3, p. 296. 



Two specimens, No. 05783, 05784, M. C. Z. 29792 (small), Bora Bora, Society 

 Islands. 



Gymnothorax pictus (Ahl). 



Muraena picta Ahl, Specimen Ichthyologicum de Muraena et Opiiichtho, 1789, ji. 8, pi. 2, fig. 2. 



The collection contains the following specimens from Paumotu Islands: 

 No. 08822, 14| inches long from Anaa. No. A52, M. C. Z. 29760 16| inches long 

 from Fakarava; No. 05771, 13? inches long, No. 05770, 13j inches long, and 

 No. 05772, M. C. Z. 29761, 14^ inches long, from Makemo. No. A36, 20| inches 

 long from Tikei. No. A20, 23 inches long from Rangiroa. Another specimen. 

 No. A156, 18 inches long from Funafuti, EUice Islands, and Nos. 09044, 6 inches 

 long and 09043, 9? inches long from Jaluit, Marshall Islands. 

 The following notes were taken from the above specimens: 

 Color of No. 08822, in alcohol, creamy white, thickly speckled with brown 

 on back and sides, belly plain white, specks arranged in ii-i-ogulai', ci'owded 

 groups, same color on dorsal fin ; this grouping on the white background gives 

 a faint reticulated efTect, the reticulations being of the pale color; anal white; 



