122 



SCOEPIDIDJE. 



Psettm rhombeus, Guv. & Val. Hist. Poiss. vii. p. 215 (1831) ; Val., Cuv. Regne 



Anim. 111., Poiss. pi. xlii. fig. 2 (1836). 

 Psettus argenteus, Richards. Ereb. & Terr., Fish. p. 57, pi. xxxv. fig.<. 1—3 (1816j ; 



Giinth. Cat. Fish. ii. p. 487 (1860) ; Kner, Novara, Fisehe., p. 164 (1869) ; 



Klunz. Verb, zool.-bot. Ges. Wien, xx. 1870, p. 794 ; Day, Fish. Lid. 



p. 235, pi. Ii. B. fig. 5 (1876) ; Giinth. Fisehe Siidsee, p. 140 (1876); Khmz. 



Fisehe Roth. Meer. p. 117 (1884), part. ; Douglas Ogilby, Ed. Fishes 



N. S. Wales, p. 91 (1893). 

 Monodactylus rhombeus, Cantor, Cat. Mai. Fish. p. 172 (1850). 

 Monodactylus argenteus, Bleek. & Pollen, Fauna Madag., Poiss. p. 65 (1874). 



Depth of body \\ to 1J times in total length, length of head 3 to 



Fig. 9o. 



Psettus aiyenteus. 

 India, after Day (I. c). 



of times. Snout much shorter than eye, which is 2^ to 3 times in 

 length of head and equal to or a little greater than interorbital width ; 

 maxillary extending to below anterior border or anterior fourth of eye ; 

 head entirely covered with very small scales. 17-19 gill-rakers on 

 lower part of anterior arch. Dorsal VIII 28-30 ; last spine -f to -f 

 length of head; anterior soft rays moderately produced. Anal III 

 29-32 ; third spine f to § length of head. Ventral reduced to a small 

 spine and 2 to 4 soft rays. Caudal feebly emarginate. Caudal peduncle 



