164 PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 

 The following genus is very nearly allied, viz: 



Peolatilits. 



Sijnonymij. 



=Prolat.ilu8 Gill, Proc. Acad. Nat. Sci. Phila., [v. 17,] p. 67, 1865. 

 latilus sp. Guv. & Val.^ Jenyns, GUnther, etc. 



Type Prolatilus jugularis=Latilus jugularis C. & Y. 



Apparently closely related to Prolatilus is Pinguij)es, viz : 



PiNGUIPES. 



Synonymy. 



=Pinguipes Cuv. ^- Vol., Hiafc. Nat. des Poissons, t. 3, p. 277, 1829. 



Type Pinguipes irasilianus C. & V. 



The following genus has been associated with the preceding by all 

 who have treated of them, save Dr. P. von Bleeker. That ichthyologist 

 has referred Latilus to the family of "Percoidei" and its tenth subfam- 

 ily, " Spariformes " and "Phalanx Denticini," and removed Caulolatilus 

 and Prolatilus from all close relationship therewith. "(Spec, plures 

 familise Parapercioid. adnumer.)" What are the exact affinities must be 

 determined by a study of the anatomy. 



Latilus. 



Synonymy. 



<Latilus Cuv. cf- Val., Hist. Nat. des Poissons, t. 5, p. 369, (t.9, p. 495,) 1830. 

 =Latilns GUI, Proc. Acad. Nat. Sci. Phila., [v. 17,] p. 67, (by exclusion,) 1865. 

 =Latilus Bleeker, Archives N^erland. Sc. exactes et nat., 1. 11, p. 279, 1876. 



Type Latilus simus= Coryphwna sima Bl. Schneid.=Iya^^7^ts argentatus- 

 C. & V. • 



To Latilus the following genus seems to be most nearly related, but 

 whether such is really the case cannot be considered settled till its oste- 

 ology is examined. 



LOPHOLATILUS. 



Synonymy. 

 ==Lopholatilus Goode cf Bean, Proc. U. S. Nat. Mus., t. 2, p. 205, 1879. 



Type Lopliolatilus chamwleonticeps Goode & Beau. 



