260 



.MKULSTIC VARIATION. 



[PART I. 



occurs in a nearly symmetrical way. This specimen is described 

 as lil,;n,,i>t,,;i polyod&n, but it is by nu means unlikely that it 



ni n i 



\ \, . 69. i |<)i< r ti^urr : Rhinoptera jussieui, No. 39(5, after SMITH WOOD WABD, 

 from \vliciiii tin- li'ttrriiij.' is rnjiied. 



Mi'Ml' 1 ii"uir, Rhinoptera, sji.. No. H97. 



Lo\\( i ti^'urc Khinoptern j'li'iiiiicii, No. :v.)8, after OWEN. 



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

 ptera. It is figured by (Ji'-NTiiKi:. tftmli/ <>f Fishes, 1SSO, p. 34(3. 

 Fig. 133. 



*-'!!'7. Rhinoptera sp. ineerl.: teeth as in middle diagram, Fig. 69. On 

 the left side ////"' i-oNvs of small lateral teeth, while on the right siile 

 t \\o of the^e ro\\ s are represented liy one row, \vhieh in one part of t Ill- 

 series s!ie\\ - an indieation of division. (.'. S. M. (llunt'-f'uni S]'cime)i). 



