22 ATHERINID.^: SILVERSIDES 



Mr. Regan (/. c, p. 278) has assumed that the spines have become 

 secondarily pungent in this genus. It seems more plausible to us, how- 

 ever, that they are all primitively robust, as in the perch-like genus 

 Nannatherina and in Nannoperca. 



7. Centratherina crassispinosa (Weber), 1913. 



Rhombatractus crassispinosus Weber, Nova Guinea, 9, 567, 1913. 



Centratherina crassispinosa Regan, Trans. Zool. Soc. London, 20, 283, 



pi. 31, fig. 2, 1914. 

 Type-locality. — Northern New Guinea: "Unterlauf, Oberlauf und Nebenfluss 

 Buarin des Sermowai-Flusses bei der Walckenaer-Bucht." 

 Range. — Fresh waters of northern New Guinea. 



V. CHILATHERINA Regan, 1914. 



Chilatherina Regan, Trans. Zool. Soc. London, 20, 282, 1914. 



Logotype (now definitely designated). — Rhombatractus fasciatus Weber. 

 Range. — Fresh waters of northern New Guinea. 



8. Chilatherina fasciata (Weber), 1913. 



Rhombatractus fasciatus Weber, Nova Guinea, 9, 565, 1913. 



Chilatherina fasciatus Regan, Trans. Zool. Soc. London, 20, 282, pi. 31, fig. 4. 

 1914. • 



Type-locality. — Mouth of the Sermowai River, New Guinea. 

 Range. — Streams of northern New Guinea. 



9. Chilatherina sentaniensis (Weber), 1908. 



Rhombatractus sentaniensis Weber, Nova Guinea, 5, 235, pi. 11, fig. 3, 1908; 



9, 564, 1913. 



Chilatherina sentaniensis Regan, Trans. Zool. Soc. London, 20, 282, 1914. 

 Type-locality. — Lake Sentani, New Guinea. 

 Range. — Lake Sentani, northern New Guinea. 



VI. ANISOCENTRUS Regan, 1914. 



Anisocentrus Regan, Trans. Zool. Soc. London, 20, 281, 1914. 



Orthotype. — Nematocentris rubrostriatus Ramsay and Ogilby. 

 Range. — Southern New Guinea and Aru Islands, in fresh water. 



10. Anisocentrus rubrostriatus (Ramsay and Ogilby), 1867. 



Nematocentris rubrostriatus Ramsay and Ogilby, Proc. Linn. Soc. N. S. Wales 

 (21), 1, 14, 1886 (1887) ; Regan, Proc. Zool. Soc. London, 339, 1914. 

 Rhombatractus rubrostriatus Ogilby, Proc. Linn. Soc. N. S. Wales, 2\, 134, 1896. 

 Anisocentrus rubrostriatus Regan, Trans. Zool. Soc. London, 20, 281, pi. 31, 



fig. 3, 1914. 

 Type-locality. — Strickland River, New Guinea. 

 Melanot.^nia dumasi Weber, Nova Guinea, 5, 240, pi. 11, fig. 1, 1908; 9, 558, 1913, 



Type-locality. — River Wa Udu, basin of the Urama, southern New Guinea. 

 Range. — Streams of southern New Guinea and Aru Islands. 



