369 



c. Brown with black and white spots, irregularly distributed 

 or arranged in longitudinal series (laysanus). 



d. On a whitish groundcolour the brown is arranged in a some- 

 what regular network, giving the appearance of indistinct 

 whitish spots surrounded by polygonal brownish interspaces, 

 which are most distinct on the tail (ercodes). 



Length approaching 1000 mm. [Specimens of G. buroensis, 

 griseobadius and chlorostigma of BLEEKER'S collection seen by us]. 



Habitat: Sumatra (Trussan, Siboga); Singapore; Batu 

 Islands; Nias, Simalur!; Cocos Island; Java (Anjer, Prigi, Patjitan); 

 Paternoster Islands!; Bali; Beo, Karakelang- Islands!; Sangir 

 Islands; Ternate; Burn; Ambon!; Ceram; Solor!; New Guinea. 

 Indo-pacific region from east coast of Africa and Mauritius to 

 Sandwich Islands, Australia and Japan. 



On reefs and near shore. 



5. Muraena (Gymnothorax) polyuranodon Blkr. 



Muraena polyuranodon Bleeker, Nat. Tijdschr. Ned. Indie V. 1853, p. 248. 



Verb. Bat. Gen. XXV. 1853, Muraenoid. p. 70. 

 Polyuranodon Kuhlii Kaup, Cat. Apod, fish 1856, p. 96. 

 Muraeno-blenna tigrina Kaup, Ibid. p. 98 (p.p.). 

 Gymnothorax polyuranodon Bleeker, Atl. Ichth. IV. 1864, p. 89. 

 Muraena polyuranodon Giinther, Cat. Brit. Mus. vol. VIII, 1870, p. 114. 



Fische d. Siidsee, Heft IX. 1910, p. 421. 



Height 19 to 28; head 9 to more than n, 4 to 5 times in 

 trunk. Tail somewhat shorter than head and trunk. Eye 10 12, 

 more than 1.5 in snout, situ- O o o S 00 o 



ated above middle of cleft a \ oo oo o 



r *.! o ooo cop 



of mouth, which goes more go O o <> 



or less than 3 ] / a times in f* o J> 



00 





length of head, is horizontal % 



and closes completely. Origin So \ o 



of dorsal slightly before gill- JX o / ,\ 

 openings, which are a little 



m v in ma 



wider than the eye. Teeth 



Conical, with the sharp point Fi S- l8 5- Dentition of Muraena (Gym- 



directed backwards, in the noth ^ **9** Blkr - * inter ' 



maxillary, m maxillary, ma mandibulary, 



maxillanes in 2 or 3 series, v vomerine teeth . 



on the intermaxillary plate in 



2 peripheral series, the teeth of the inner series stouter, in the 



centre I or 2 compressed, recurved, moveable teeth; on vomer a 



INDO-AUSTRALIAN FISHES III. 24 



