34 



PEOCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 76 



According to the later synopsis by the same author (Taaning, 

 1928), however, we find the type of D. '•'' theta'''' differing very con- 

 spicuously from I), holti by the higher positions of the Pol and the 

 upper SAO in the former. It further differs from Taaning's new 

 species D. mollis (Taaning, 1928) by having the SAO in a nearly 

 straight series, and should thus, according to the above-mentioned 



OOP qQ^ 



/ /"n.PROTOCULUS 



Figure 16. — Diaphus eafinesquei Cocco. Represented by the type speci- 

 mens OF D. theta Eighnmann and Eigenmann, D. protoculds Gilbert^ and 

 D. NANUS Gilbert 



synopsis, be identifiable with D. raflnesquei^ from which it has 

 already been shown to be taxonomically different according to 

 Taaning's definitions of 1918. It may further be mentioned that 

 D. '' theta " seems to differ from all of the above-discussed species in 

 having 6 posterior AO, while the maximum recorded by Taaning for 

 any of the forms described by him is, ^ AO post. In most of the 

 respects above considered D. '"'■ tlieta'''' agrees with specimen No. 2147 



