264 



vertical through origin of first dorsal or nearly so. Olivaceous 

 above, silvery below. Length 390 mm. 



Habitat: Sumatra (Benkulen, Padang); Sumbawa '); Celebes 

 (Sawangan, Menado, Klabat di atas); Buton '); Ambon; Ceram ; 

 Batjan. 



Note. This diagnosis is drawn after the type of C. oxy- 

 rliynchiis C.V. in the Paris Museum and after 2 specimens in 

 Bleeker's collection in the Leiden Museum. We have to thank 

 Dr. J. Pellegrin and Miss Dr. C. POPTA for their valuable 

 informations about these specimens. 



3. Myxus Giinther. 



(GiJNTHER, Cat. Brit. Mus. III. 1859 — 1861, p. 466). 



Snout pointed. Mouth not transverse but longitudinally cleft 

 on sides of snout but not reaching orbit. Upperlip not fleshy, 

 anterior margin of mandible sharp, lower lip thin without a 

 lamellated apparatus. Well developed teeth in a single row 

 on intermaxillaries, sometimes also on mandible; minute teeth 

 on vomer and palatines. Other exterior characters not differing 

 from those of Mngil and Cestraeiis. 



Living along the coast and in fresh water of Eastern and 

 Western Australia, Tasmania, Lord Howe Island, Norfolk 

 Island, Cook Island, Makatea. 



Of this australian and pacific genus 



Alyxus cf. elongatus Gthr. 



is quoted by E. VON MARTENS (Preuss. Exp. Ost-Asien, 1876, 

 p. 310) from Singapore. 



We suppose that this is erroneus, though it may be possible, 

 that Myxus elongatus Gthr. may be found in New Guinea or 

 the Aru Islands. 



i) According to Miss Dr. C. Poi'TA, after material from the Elbert-expedition. 

 She has been so kind to give us also valuable information about the specimens 

 of Bleeker in the Leiden Museum. The seven examples are contained in two 

 bottles. Hy examining them one example of 220 mm. length showed the characters 

 of C. goldici^ as remarked on page 263. 



