56 BULLETIN OF THE BUREAU OF FISHERIES. 



Color in spirits, yellowish white: base of dorsal black; a black area at upper margin of opercle; a dusky 

 band on anterior third of mandible; base of caudal and top of caudal peduncle dusky. 



This species seems most nearlj- related to M . I'einhardtii Liitken. 



Four specimens from Bulan, length 2.1 to 2.5 in. Tj'pc (field no. 3841) no. 55900, U. S. National Museum; 

 length 2.5 in., from Bulan, Soi-sogon; coll. Charles J. Pierson. Of the 3 cotypes, 1 (field no. 3S41) is no. 20,000, 

 Stanford Univ. Mus.; another (field no. 3841) is in Museum at ManUa, and a thu'd (field no. 3841) is no. 

 4535, U. S. Bureau of Fisheries. Named for Dr. Charles H. Gilbert. 



Family ANGUILLID^E. 



18. Anguilla niauritiana Bennett. Pabucang-binhi. 



One fine specimen from Tarlac (no. 40(i3; length 23 in.). 



Anguilla mauritiana Bennett, Proc. Conmi. Zool. Soc. Lond. 1S31, 128. Mauritius. 

 Murxna manillcnsis BIceker, Atlas, vi, 10, pi. cLXXXViii. fig. 2, Manila, Luzon. 

 Anyuilla mauriliana, Giiuther, Cat., vin, 25. 



Familv MIR.^XII).*. 

 19. Gymnothorax richardsoni (Bleeker). 



One small specimen from San Fabian (no. 3842; length 5.2 in.). 

 Mursena richardsoni Bleeker, Nat. Tijds. Ned. Ind., in, 1852, 290, 'Wahai, Ceram; Guntlier, Cat., viu, 118. 



20. Gymnothorax afer Bloch. 



One specimen from Bacon (no. 3769; length 2.5 in.), which we refer doubtfully to this species. 



Gymnothorax afer Blocli, Ichth., xu, 73, pi. ccccxvii, 1797. 

 Mursna afra, Giinther, Cat., vui, 123. 



Family PLOTOSID^. 

 21. Plotosus anguillaris (Bloch). Sumhilang. 



Eleven specimens from Jolo (no. 3352 to 3357 and 3421 to 3425; length 5 to 7 in.), eleven fine specimens 

 from Bacon (no. 3365 to 3368, 3475 to 3480 and 4034; length 5.1 to 7 in.), and 48 young from Bacon (no. 4031; 

 length, 1 to 1.5 in.). 



Plalystacus anguiUaris Bloch, Ichth., XI, 49, pi. cccLXXi, fig. 1, 1797. 

 Plotosus anguUlaris, Giinther, Cat., v, 24. 



Family SILURID/E. 

 22. Netuma thalassinus (Riippell). Tabomomo. 



One specimen from San Fabian (no. 3244; length 8 in.), three large specimens from Bulan (no. 4186, 

 4187, and 4188; length 19 to 20 in.); two small specimens from "Philippine Islands," without local label 

 (no. 3939; length 3.5 and 5 in.). 



Bagrus thalassinus Riippell, Neue Wirb., Fische, 75. pi. 20, fig. 2. 1837, Massaua. 

 Arius thalassinus, Giinther, Cat., v, 139. 



Family FISTULARIID^. 



23. Fistnlaria petimba Lac<?p6de. Droal. 



Two specimens, one from San Fabian (no. 3407; length 15 in.), and one from Bacon (no. 4189; length 

 8.25 in.). 



Fistularia petimba Lacdpftde, Hist. Nat. Poiss., v, 349. 1803, New Britain, Reunion Island; Jordan & Evcrmann, Bull. U. S. 

 Fish. Comm.. xxin, 1903 (1905), 116 (Ilonolulu. Hilo, Kailua, Necker Island, and Hanalei Bay, Kauai; also Japan, 

 Samoa, Philippines, and Papeete, Tahiti) . 



