2 9 6 



15. Arius spatula Rams. & Ogilb. 



Arius spatula Ramsay & Ogilby, Proc. Linn. Soc. N. S. Wales, (2) I. 1886, p. 15. 



D. 1.7; A. 20; V. 6; P. 1.9; C. 17. 



Length of head 3 9 / 10 , of caudal fin 5^3, height of body 6 2 / 3 

 in the total length. Diameter of eye 6 ! / 4 in the length of 

 head, 3 / 7 of that of snout, and 2 / 3 of the interorbital space. 

 The height of the head is 5 / 8 of its width, which is equal to 

 its length behind the middle of the eye. Upper jaw so much 

 the longer that the lower closes entirely inside the maxillary 

 teeth ; the width of the gape of the mouth is 3 / 7 of the length 

 of the head. Median longitudinal groove shallow and indistinct; 

 occipital process narrow, the width of its base being one half 

 of its length, the sides are convergent behind to immediately 

 in front of the basal bone of the dorsal fin round which they 

 bend outwards; posterior part of the head granulated. The 

 maxillary barbel reaches to the lower angle of the opercle, 

 the external mandibular to the base of the pectoral. A broad 

 band of obtusely conical villiform teeth on the jaws; the 

 vomerine teeth form two small square patches, about their 

 own length apart, and contiguous with the divergent palatine 

 bands, which are thrice as long as broad. The dorsal fin is 

 higher than the body, the spine as long as the head excluding 

 the snout; it is roughened on its lower part anteriorly, weakly 

 serrated on its upper half and posteriorly; the length of the 

 base of the adipose dorsal is ! /s rnore than that of the rayed 

 fin ; the pectoral spine is shorter than that of the dorsal, and 

 is weakly serrated on both sides; the ventrals do not reach 

 the anal fin. Caudal deeply forked. Colors, brown above, 

 yellowish below; an oblong white spot on the middle of the 

 occiput. Length of the specimen described 317 mm." [After 

 Ramsay and Ogilby; not seen by us]. 



Habitat: South New Guinea (Strickland River). 



1 6. Arius latirostris Macleay. 



Arius latirostris Macleay, Proc. Linn. Soc. N. S. Wales VIII. 1884, p. 277. 

 Arius latirostris Max Weber, Nova Guinea IX. livr. 4. 1913, p. 540. 



D. I. 7; A. 5. 15; P. I. 10. 



Elongate, height 4 3 / 10 , head 3 1 /,,, very broad and depressed 

 in front, not much broader than long. Headshields slightly 

 rugose and granular in some places, even as the occipital 



