130 Mr. W. C. Crawley on An' s from 



38. Bafrochoides heninensi's, sp. n. 



Depth of body about 6 in lengtl), lengtli of liead about 3. 

 Diameter of eye 10 to 12 in length of head. A horizontal 

 fold of skin from below eye to prajoperculiim. Two opercuUir 

 and two subopercular spines. Teeth on vomer and ijalatiues 

 uniserial, obtusely conical ; 11 to 13 on vomer; lower jaw 

 with a series of similar teeth and anteriorly a patch of villi- 

 form teeth : prsemaxillaries with a narrow band of villiform 

 eeth. Head naked, covered with small filiform papillae ; no 

 scales on occiput or on throat ; snout and lower jaw with 

 fringes. Body scaly, the scales comparatively large, 10 

 between origin of second dorsal and lateral line. Dorsal 

 III, 25. Anal 22-23. Pectoral 19-20, extending to origin 

 of anal ; no axillary foramen or pores. Greyish ; head 

 ornamented with irregular transverse dark bands with daiker 

 edges ; body with irregular dark cross-bars and spots ; dorsal 

 and anal fins with oblique stripes; pectoral with series of 

 spots; caudal dark at the base and also posteriorly. 



Three specimens, IGO to 210 mm. in total len<;th. 



Kelated to S. surinatnensifi, Schneid., of the Atlantic coast 

 of America, differing especially in the completely naked head, 

 the larger scales, and the fewer dorsal and anal rays. 



VI. — Ants from North and Central Australia, collected 

 by G. F. Hill.—V&xi I. By W. C. Ckawley, B.A. 



I. Subfam. PonEjRin^. 

 No. 2. Odontomachus rvficeps, Sm., subsp. acutidens, Forel. 

 Darwin, N.T., 15. iv. 13. ^ . 



No. 21. Odontomachus sepientrionalis, sp. n. 



2 . — L. 14-8 mm. (with mandibles). 



Mandibles long (2 mm.), dentate all along their inner 

 margin ; apical tooth long, rounded at point, subapical very 

 small and pointed, preapical nearly as lung as apical, broad 

 and truncated. Head 3*5 mm. long, maximum breadth 

 2*5 mm., minimum (at back) 1*8 mm. Frontal area distinct ; 

 clypeus long, prolonged to a point between the frontal carinse, 

 anterior border truncate. Head much narrower behind and 

 deeply emarginate. Node of pedicel very high, merging 



