260 



MERISTIC VARIATION. 



[part I. 



occurs in a nearly symmetrical way. This specimen is described 

 as Rhinoptera potyodon, but it is by no means unlikely that it 



T Th la Oc Ob 

 wM lL £ HLUL 



Oa 







M M 



jt m 



Fig. 69. Upper figure ; Rhinoptera jussieui, No. 396, after Smith Woodwakd,. 

 from whom the lettering is copied. 



Middle figure, Rhinoptera, sp., No. 397. 



Lower figure Rhinoptera javanica, No. 398, after Owen. 



is actually a Variation derived from the usual formula of Rhino- 

 ptera. It is figured by Gunther, Study of Fishes, 1880, p. 346. 

 Fig. 133. 



*QQ7 



39/. Rhinoptera sp. incert. : teeth as in middle diagram, Fig. 69. On 

 the left side three rows of small lateral teeth, while on the right side 

 two of these rows are represented by one row, which in one part of the 

 series shews an indication of division. C. S. M. {Hunterian Specimen). 



