BY J. DOUGLAS OGILBY. 7 



ofF twelve short subcruciform bars to enroach on the 

 lighter color below ; these bars are much larger and darker 

 in front and gradually fade away behind. Head spotted 

 with violet and with transverse dark-edged bands between 

 the eyes and three similar bands directed forwa^rd and 

 downward from the eye to and upon the premaxillary. 

 Base and middle rays of caudal and base of pectoral yellow. 

 (Named for Edward James Banfield, Honorary Govern- 

 ment Ranger of Dunk Island and the neighboring islets ; 

 to whose acute observation Queensland science is greatly 

 indebted for its knowledge of the biology of the district). 

 Described from a specimen in the Queensland Museum 

 collected bj^ Mr. Banfield, near Dunk Island, and measuring 

 142 millim. 



SILURlDiE. 

 Hemipimelodus colcloughi sp. nov. 



D. i 6, ; A. 17 ; P. i 12. Depth of body 4-55, length 

 of head 3-25, predorsal length 2-35, interdorsal space 3-4, 

 upper caudal lobe 4-2 in length of body. Width of head 

 1-45, length of snout 2-5, diameter of eye 5-45, width of 

 interorbit 2-9, length of maxillary barbel 1-25, of dorsal 

 spine 1-65, of anal fin 2-25, of pectoral spine 1-8, of ventra]^ 

 fin 2 in length of head. 



Upper profile of heeA linear and but little oblique ; 

 diameter of eye 2-2 in the snout, which is feebly rounded 

 and one fourth wider than long ; interorbital region gently 

 convex, its width equal to that of the mouth. Pre- 

 maxillary teeth in a continuous band, which is somewhat 

 undulous posteriorly, pointed at the extremities, and 

 nearly 4 times as long as wide ; mandibular band divided 

 mesially, of nearly equal width throughout, but narrowing 

 rather abruptly to a point externally. Barbels slender, 

 the maxillary extending to the origin of the pectoral fin : 

 postmental barbel 1-5 in the maxillary barbel, inserted 

 but little behind and outside the mental barbel, which 

 scarcely reaches the gill- opening. Cranial shield mostly 

 smooth, with a patch of small granules on either side, and 

 a more crowded mesial patch posteriorly, from which two 

 or three rapidly diminishing series extend forward along 

 each side of the occipital groove. Nuchal shield sparsely 

 granular anteriorly, with a well-marked median ridge, 

 on either side of which is a lower and slightly divergent 



