350 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



Genus PLAGIOGENION Forbes 



Plagiogenion Foebes, Trans. New Zealand Inst., vol. 22, p. 272, 1890. (Type, 

 Therapon rubiginosus Button, monotypic.) 



Body oblong, moderately compressed. Teeth vestigial or micro- 

 scopic, if present uniserial and sometimes few on vomer. Preopercle 

 broadly rounded, vertical edge greatly concave. Preorbital projects, 

 somewhat angular anteriorly. No lateral ridge on caudal peduncle. 

 Short scaly flap between ventral bases. Dorsal spines 12, fin little 

 separated from soft dorsal or notch shallow and penultimate spine 

 long as last. Last dorsal and anal rays not extended. 



PLAGIOGENION RUBIGINOSUS (Hutton) 



Therapon rubiginosus Hutton, Trans. New Zealand Inst., vol. 22, p. 273, 1890 

 (type locality: Canterbury, mouth river Avon). — Waite, Trans. New Zea- 

 land Inst., vol. 45, p. 218, pi. 7, 1913 (Canterbury) ; Rec. Canterbury Mus., vol. 

 2, pt. 1, p. 18, 1913. — McCuLLOCH, Biol. Res. Endeavour, vol. 2, No. 3, p. 104, 

 1914 (east slope Bass Strait). — Barnaed, Ann. South Afric. Mus., vol. 

 21, pi. 1, p. 593, 1927 (off Cape Peninsula, lat. 30° 17' S., long. 17° 26' E., 

 in 180 fathoms). 



Plagiogenion macrolepis McCulloch, Biol. Res. Endeavour, vol. 2, No. 3, p. 

 104, pi. 20, 1914 (type locality: Great Australian Bight, west of Eucla, 

 lat. 33° 20' S., long. 126° to 127° E., in 70 to 120 fathoms). 



Depth 3; head little over 3. Eye 3 in head, Iji in snout, little 

 greater than interorbital ; maxillary reaches % in eye, angularly 

 truncate behind; opercle smooth, entire; hind preopercle edge 

 minutely denticulate; lower preorbital edge serrate. Lower gill 

 rakers 27. 



Scales 68 to 71 in lateral line besides few more on caudal base; 

 12 above, 12 below; snout completely scaly. 



D. XIII, 10, spines graduated to fourth which longest; A. Ill, 9. 



Uniform silvery, with delicate salmon-pink tinge on body and fins. 

 Iris silvery, pupil black. Length, 280 mm. (Barnard.) 



South Africa, Ea,st Australia, New Zealand. 



Genus CYPSELICHTHYS Steindachner and Doderlein 



Cypselichthys Steindachner and Doderlein, Denkschr. Akad. Wiss. Wien, 

 math.-nat. KL, vol. 48, p. 14, 1884. (Type, Cypselichthys japonicxis Stein- 

 dachner and Doderlein, monotypic.) 



Body compressed, rather slender. Head rather small, obtuse. Eye 

 large, well advanced. Mouth terminal, small. Very small teeth in 

 both jaws, on vomer, tongue, palatines, and pterygoids. Preopercle 

 very finely denticulate. Branchiostegals 7. Scales ctenoid. Dorsal 

 continuous, spines slender. Soft dorsal and anal with long bases and 

 well scaled. Caudal well forked, lobes long and slender. Ventral 

 inserted behind pectoral bases. 



cypselichthys JAPONICUS steindachner and Doderlein 



Cypselichthys japonicus Steindachner and Doderlein, Denkschr. Akad. Wiss. 

 Wien, math.-nat. Kl., vol. 48, p. 15, pi. 7, fig. 1, 1884 (type locality: Tokio 

 and Yokohama). — Ishikawa and Matsuura, Prelim. Cat. Fishes Mus. 



