346 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



denticles, with 1 or 2 transverse series of rather large basal elements ; 

 circuli moderate. 



D. XIII-9, I or 10, I, third spine 1% to 2% in total head length, 

 second ray 2% to 2)^; A. Ill, 8, i, third spine 4%, first ray 2^ to 2%; 

 caudal 1% to V/i, deeply forked, slender lobes well pointed; least 

 depth of caudal peduncle 3% to 3%; pectoral 1}^ to 1%; ventral 1% to 2. 



Brown above, paler below vdth silvery white tinge. Iris white. 

 Fins all pale brown. 



South Africa, Western Australia, New South Wales, New Zealand. 



U.S.N.M. No. 48817. Tasmania. Dr. J. Douglass Ogilby. Length, 107 to 

 115 mm. Three examples. 



Genus DIPTERYGONOTUS Bleeker 



Dipterygonotus Bleeker, Journ. Indian Archipelago, vol. 3, p. 71, 1849. (Type, 

 Emmelichthys leucogrammicus Bleeker, monotypic.) 



Body fusiform, slender, elongate. Head small. Eye moderate 

 little advanced. Mouth greatly protractile. Teeth minute or absent 

 from jaws or palate. Preopercle edge weakly serrate. Lower gill 

 rakers 22. Dorsal spines 13 to 15, rays 10 to 13. Anal spines 3, 

 rays 10 to 12. Caudal emarginate. 



ANALYSIS OF SPECIES 



aK Eye 3>^ in head; soft dorsal rays 13, anal 12 leucogrammicus. 



a^. Eye 'iYi in head; soft dorsal rays 10, anal 10 gruveli. 



DIPTERYGONOTUS LEUCOGRAMMICUS Bleeker 



Dipterygonotus leucogrammicus Bleeker, Journ. Indian Archipelago, vol. 3, 

 p. 71, 1849 (type locality: Macassar); Atlas Ichth. Ind. N6erland., vol. 8, 

 p. 42, 1876-1877 (Celebes, Buro, Amboina). 



Erythrichthys leucogrammicus GtJNTHER, Cat. Fish. Brit. Mus., vol. 1, p. 396, 1859 

 (Amboyna; Molucca Sea). — Bleeker, Atlas Ichth. Ind. Neerland., vol. 7, 

 pi. (16)294, fig. 2, 1873-1876.— Johnstone, Rep. Pearl Oyster Fisher. Gulf 

 of Manaar, pt. 2, p. 221, pi. 1, fig. 6, 1904 (Cheval Paar in 7 fathoms).— 

 EvERMANN and Seale, Bull. Bur. Fisher., vol. 26, p. 71, 1906 (1907) (Bulan 

 and Bacon). 



Emmelichthys leucogrammicus Beaxjfort, Bijd. Dierk. Amsterdam, vol. 19, 

 p. 121, 1913 (Buton). 



ISmaris balleatus Valenciennes, Hist. Nat. Poiss., vol. 6, p. 424, 1830 (type 

 locality: Ceylon). — Gunther, Cat. Fish. Brit. Mus., vol. 1, p. 389, 1859 

 (compiled). — Day, Fishes of India, pt. 1, p. 94, 1875 (Ceylon); Fauna Brit. 

 India, Fishes, vol. 2, p. 531, 1889. 



Depth 4%; head 2^(o, width 2}^. Snout Z% in head from snout tip; 

 eye 3K greater than snout or interorbital; maxillary reaches eye, 

 expansion 2}i in eye, length 2% in head from snout tip; teeth absent; 

 interorbital 4%, very slightly convex or nearly level medially; thin pre- 

 opercle edge with few weak, obsolete serrae. Gill rakers 6 + 22, 

 finely lanceolate, slightly longer than gill filaments, which 1% in eye. 



Scales 61 in lateral line to caudal base and 8 more on latter; 8 

 above, 12 below, 23 predorsal forward opposite middle of eye; 6 rows 



