A 'CONTRIBUTION TO THE ICHTHYOLOGY I75 



In the above statements about the relative length of the 

 barbels, I have not regarded the small and apparently immature 

 specimens in the collection (122 — 88 mm.). It may, however, be 

 noted here, that these have relatively longer barbels. In these 

 young fishes, we can as extreme values stale: nasal barbel 1,2, 

 maxillary barbel 1,5, and outer mandibulary barbel 0,9 in length 

 of head. 



Arias stirlingi Ogilby. 

 Locality: Victoria River, April 



1895 Five specimens, 230—101 mm. 



(s. c). 



Arius australis Günth. 

 Locality: Victoria River, April 



1895 ....... Three specimens, 167, 153, and 



105 mm. (s. c). 



Arias thalassinus Rüpp. 

 Locality: Roebuck Bay . . . One specimen, 270 mm (s. c). 



Anguilla australis Richards. 

 Locality: Roebuck Bay, Dec. 



1895 "From the mere at Hill Station " 



Seven specimens. 



Belone krefftii Günth. 

 Locality: Daly River, July 1894. Two specimens. 



Arrhamphas sclerolepis Günth. 

 Locality: Roebuck Bay . . . One specimen. 



Craterocephalus capreoli n. sp. (Fig. 6). 

 Locality: Roebuck Bay, Nov. 10 



1895 Two specimens, 48 (type) and 



50 mm. 

 D. 5. 5/7; A. 1/9. L. lat. ca. 30, 1. tr. 7. 



