282 ME. C. TATE EEGAN ON FRESHWATEE EISHES 



Pectoral as long as or longer than head without snout. Caudal peduncle as long as 

 or longer than deep. White stripes or series of spots along the rows of scales, and 

 red ones between them ; vertical fins red or with red stripes or series of spots ; a series 

 of darker spots at base of soft dorsal and anal. 



Southern New Guinea ; Aru Islands. 



Here described from five specimens of 100 to 130 mm. from the Setakwa River 

 (WoUaston) and two, 120 and 140 mm., from the Lorentz River, received from 

 Professor Weber as M. dumasi. 



5. CniLATHEBmA, gen. nov. 



Similar to Anisocentrus in size and structure of the mouth, but distinguished by the 

 dentition ; in the lower jaw there is no interspace between the inner band and the 

 outer series of enlarged teeth, and in the upper there are several series of teeth 

 developed on the outer side of the prasmaxillaries and projecting from the thick lip ; 

 palatine teeth are absent. 



Two species from Northern New Guinea. 



1. Chilatheeina pasciata. (PI. XXXI. fig. 4.) 



Rhombatractus fasciatus M. Weber,, Nova Guinea, ix. 1913, p. 565. 



Depth of body 3 in the length, length of head 4|. Snout longer than distance 

 from its tip to end of maxillarj'', Ij- as long as diameter of eye, which is 3^ in the 

 length of head ; interorbital width 3 in length of head. Cheek with 2 series of scales. 

 15 gill-rakers on lower part of anterior arch. 42 scales in a longitudinal series, 12 in 

 a transverse series, 20 in front of dorsal. Dorsal V (VI), I 12 (13-16) ; origin equi- 

 distant from end of snout and base of caudal, behind that of anal ; first spine more 

 than ^ length of head. Pectoral f length of head. Caudal peduncle longer than 

 deep. Silvery ; back darker ; a dark lateral band and below it several narrow dark 

 cross-bars ; fins dusky. 



Northern New Guinea. 



Here described from a co-type, 120 mm. in total length, from the Sermowai River. 



2. Chilatheeina sentaniensis. 



Rhombatractus sentaniensis M. Weber, Nova Guinea, v, 1907, p. 235, pi. xi. fig. 3. 

 Depth of body 2^ to 3 in the length, length of head 3^. Snout longer than distance 

 from its tip to end of maxillary, 1^ to 1^ as long as diameter of eye, which is o^ to 3f 

 in length of head ; interorbital width 3 in length of head. Cheek with 2 series of 

 scales. 13 gill-rakers on lower part of anterior arch. 40 to 42 scales in a longitudinal 

 series, 13 in a transverse series, 22 to 26 in front of dorsal. Dorsal (IV) V, I 9-11 (12) ; 



