39 6 



largest specimen. Gillopenings somewhat smaller than eye, in 

 small specimens (see note on page 395) below middle of height, 

 later on in middle of height. Maxillary and mandibulary teeth in 

 2 series, an outer series of numerous sessile, compressed, smaller 

 teeth, close together, and an inner series of less numerous but 

 much longer teeth, which are depressible. The outer maxillary 

 series is continued on the intermaxillary plate, but these teeth are 

 smaller and enclose numerous, irregularly placed depressible 

 teeth, which are longer, especially the hinder ones. Vomer 

 with a short single series of about 6 pointed teeth. Preserved 

 specimens uniform brown. Rudimentary fins near point of tail 

 often yellowish. Length 500 mm. ] ). 



Habitat: Nias!; Kabala dua near East Borneo!; Ambon!; 

 Nusa Laut!; Island Kur!; Island Savu!; Island Solor!; New 

 Guinea: Humboldt Bay!; Mysore (Schouten-Islands). Red 

 Sea; Mauritius; Philippines; Cape York; Australia; West Pacific 

 Islands to Sandwich and Society Islands. 



Note. Our impression is that G. concolor is characterized 

 by its uniform brown colour and by its tail, which is equal 

 to or much longer than head and trunk. We have at our 

 disposal a specimen from the mouth of Mbai river, Humboldt Bay, 

 New Guinea, of 158 mm., which has the uniform brown colour 

 of G. concolor, but its tail is shorter than head and body; the 

 measurements are: head 19, trunk 63, tail 76. We are not 

 sure where to place this specimen, the dentition of which agrees 

 with that of G. concolor or of the young of G. marmorata. 



3. Gymnomuraena macrocephalus Blkr. 



Gymnomuraena macrocephalus Bleeker, Ned. Tijdschr. Dierk. IT. (1864) 1865, 



p. 54. All. Ichth. IV. 1864, p. 114. 



Gymnomuraena marmorata Giinther, Cat. Brit. Mus. VIII. 1870, p. 133 (p. p.)- 

 Gymnomuraena macrocephalus Giinther, Fische d. Siidsee, Heft IX. 1910^.425. 

 Gymnomuraena tigrina M. Weber, Siboga-Expeditie, Fische 1913, p. 63. 



Height about 20; head 7 7.5, 2.8 3 in trunk. Head and 

 trunk equal to or somewhat longer than tail. Eye n 15, 

 situated above about the middle of the cleft of the mouth, 

 which goes 2.5 to 3 times in length of head, is horizontal and 

 shuts completely. Snout bluntly rounded, about 7 times in 



i) According to RUPPELL one of his specimens of 271 mm. "hatte im Monate 

 Marz seine Bauchhohle mit stark entwickelten Eiern gefiillt." 



