14 NOTES FROM THE AUSTRALIAN MUSEUM, 



Nematocentris rubrostriatus. sp. nov. 



D. 1/5 1/11: A. 1/20 : V. 1/5 : P. 11 : C. 16 : L. lat. 32 : L. 

 trans. 11 : Vert. 33. 



Length of head 4£, of caudal fin 5, height of body 3? in the total 

 length. Eyes large, their diameter 2j? in the length of the head, \ 

 of a diameter from the end of the snout, and one diameter apart. 

 Upper jaw slightly overhanging the lower ; maxilla does not reach 

 to the front margin of the eye. Profile in front of the first dorsal 

 straight, or if anything slightly convex. Both jaws entirely covered 

 with closely set short sharp recurved teeth ; a similar patch on the 

 head of the vomer. The rays of the second dorsal are equal in 

 height to those of the first, which are not filamentous : the anal 

 commences behind the origin of the first dorsal fin. Ventrals 

 inserted far behind the base of the pectorals : caudal forked. 

 Scales with crenulated edges, covering the cheeks, opercles, and 

 upper part of the head to the middle of the interorbital space ; the 

 anterior occipital scales large and prominent ; there are 15 scales in 

 front of the first dorsal fin. Colors, silvery, with nine broad red 

 longitudinal bands : the dorsals and anal dusky washed with red, 

 the second dorsal having a basal row of brilliant crimson spots. 



The specimen measures 2f inches ; its register number is 

 B. 9,949. 



Hob. Strickland River. 



Arius froggatti. sp. nov. 



D. 1/7. : A. 19 : Y. 6 : P. 1/11 : C. 16. 



Length of head 4 J, of caudal fin 4|, height of body 5^ in the 

 total length. Diameter of eye \ of the length of the head, f of 

 that of the snout, which is obtuse, and equal to the breadth of 

 the bony interorbital space : upper profile of the head straight, 

 gradually rising to the origin of the dorsal fin. The height of the 

 head is § of its width, which is equal to the length excluding the 

 snout : upper jaw a little longer than the lower ; width of the 

 gape of the mouth 3 \ in the length of the head. Median longi- 

 tudinal groove lanceolate, distinct, and deep; occipital process 



