120 
AOTIifOPTERYGir. 
1 Tjy tff° 
An extinct, family, of the Cretaceous period, known on y • 
genera, one with ctenoid scales ( Ctenothrissa ), the other wit ) 
scales (Aulolepis). 
Genus CTENOTHRISSA, A. S. Woodward. 
[Ann. Mag. Nat. Hist. (7) vol. iii. 1899, p. 490.] 
Maxi 
ilia 
Head large, trunk fusiform and laterally compressed. * j)0t 
robust and arched; mandible a little prominent, and r *.joto 
extending behiud the middle of the large orbit, \orte r® e( j, 
40 in number, half being caudal. Dorsal tin much , f deepl)' 
occupying about half of the back ; anal tin small ; cauda n0 „ e 
forked. Scales pectinated, large and regularly arran B e^ ^ IlC 
enlarged or thickened, and no ventral ridge-scales , l ate 
conspicuous. 
Fig. 6. 
Ctenothrissa vexillifer 
restoration, slightly enlarged 
Ctenothrissa vexillifer (Pictet). 
[Text-figure 6:] g> pi. i 
1860. Beryx vexillifer, F. J. Pictet, Poiss. Foss. Mt. an ’ 
Jg-l. Poi9S . F° 9S 
1806. Beryx vexillifer, Pictet & Humbert, Nouv. Dec • 
Mt. Lilian, p. 30, pi. ii. figs. 1-3. 
