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in snout, which goes 4 — 57 in length of head. Gape of mouth 

 2.4 — 4 in head, reaching in young specimens nearly to hind- 

 border of eye, in older ones to the hindborder of the eye or half 

 diameter of eye behind it. Head shorter than its distance from 

 dorsal, shorter than or equal to half its distance from anus and a 

 little longer or shorter than the distance between origin of 

 dorsal and anal. Pectorals 2,7 — 4 in head. Breadth of snout at 

 base equal to or a little more than its length. Tail longer than 

 head and trunk. The intermaxillary and vomerine teeth forming 

 a band, which — so far as it is in reach of the maxillary teeth — 

 gradually tapers posteriorly from 17 — 18 rows of teeth ante- 

 riorly to about 7 rows posteriorly. There upon it often tapers 

 abruptly and ends lancet-shaped, at a distance of '/o of its 

 length or less from the level of the end of the maxillary band 

 of teeth. These teeth form a band of 10 — 16 rows anteriorly, 

 which only slightly tapers posteriorly. It is narrower than the 

 vomerine band and separated from it by a groove. The mandi- 

 bulary band of teeth is alike. Colour of alcohol specimens light 

 below, back and flanks dark brown, clouded with darker. Length 

 1500 mm. 



Nom. indig. : Mengaling (Bo); Roar (Isl. Roon). 



Habitat: Simalur!; Nias!; Borneo (river Bo); Celebes; 

 Ambon; Buru ; Ceram; Salibabu!; Nusa Laut!; Timor!; Kei- 

 Islands!; Island Roon in Geelvink Bay!; New Guinea! [Brit. 

 Mus.]. — Pacific Islands, Philippines, Port Philip (Australia). 



4. Anguilla malgumora Kaup. 



Anguilla malgumora Kaup, Cat. Apodal Fish, 1856, p. 42 (nee Schlegel, Mus. 



Lugd. Batav.). 

 Anguilla malgtimoj-a Max Weber, Zoolog. Jahrb. Suppl. XV. Bd. i, 1912, p. 588. 



Height 14.7, head 7.8. Eye 6.6, nearly once in interorbital 

 space and 1.3 in snout, which goes 5.2 times in head. Mouth- 

 opening 3.5 in head and reaches vertical through hindborder 

 of pupil. Head shorter than its distance from dorsal and some- 

 what shorter than half its distance from anal and only slightly 

 longer than the distance of the origin of the dorsal from that 

 of the anal. Pectoral goes 2.6 times in length of head. Tail 

 about '/a of its own length longer than body. 



According to Kaup's figure the pointed vomerine band of 

 teeth reaches farther posteriorly as the maxillary band of teeth, 

 which ends also pointed ; the maxillary and mandibulary band 



