278 



I. Craterocephalus nouhuysi (M. Web.). [Fig. 71, p. 277 J. 



Atherinkhthys Nouhuysi Max Weber,- Notes Leyden Mus. XXXII. 1910, p. 229.— 



Nova Guinea IX. Zool. Livr. 4, 1913, p. 555- 

 Craterocephalus nouhuysi Jordan & Hubbs, Stanford University Publications, 1919, 



p. 46 (name only). 



D'. 6— 7; D-. I. 8— 9; A. I. 10; P. I. 13—15; V. 1.5; L.l. 



36-39; L. tr./V^— 9'/.,. 



Elongate, somewhat compressed, belly before ventrals more 

 flattened, back and head somewhat rounded. Height 4 — 4.3, 

 4.6 — 5.4 in length with caudal. Head 3.6 — 4.1, 4.5 — 5.2 in 

 length with caudal. Eye about 3.5, shorter than snout and 

 almost 1.5 in rounded interorbital space, which is about equal 

 to postorbital part of head. Mouth small, oblique. Intermaxil- 

 laries very protractile, almost straight. Maxillaries broadened 

 in their proximal part; almost entirely covered by the prae- 

 orbital when the mouth is closed. Lips somewhat swollen. Very 

 fine teeth on the inner side of the jaws. Palate edentulous. 

 One row of large scales on praeoperculum. Operculum scaly. 

 14 — 17 scales before dorsal. The scales reach to between eyes. 

 Origin of first dorsal well behind that of ventrals. Origin of 

 second dorsal somewhat behind that of anal. Pectorals as long 

 as or somewhat longer than head without snout. Caudal forked. 

 Colour of alcohol specimens yellowish brown, lighter below. 

 A silvery lateral band from head to caudal. Sometimes a dark 

 blotch at base of caudal. Fins hyaline. Length 120 mm. 



Habitat: Southern New Guinea (Lorentz river and its 

 tributaries !). 



Fresh water. 



3. Telmatherina Boulenger. 



(BOULENGER, Proc. Zool. Soc. London 1897, p. 428). 



Compressed, more or less elongate. Mouth small, oblique, 

 bordered by intermaxillaries and mandibles. Intermaxillaries 

 with a gentle curve, the symphysial part more or less expanded 

 horizontally. Maxillaries rodlike, hidden below praeorbital when 

 the mouth is closed. Small, pointed teeth on intermaxillaries 

 and mandibles. None on palate. Teeth on tongue. First dorsal 

 consisting of 4 — 7 simple flexible rays, its origin slightly behind 

 that of ventrals. Second dorsal with one simple ray and 8 — ii 

 branched rays, its origin slightly behind that of anal. Anal 



