PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 419 



SYNONYMS AS ORDERS. 



=Gymuodoutes, Bonaparie. Gioru. Arcad. di Scieuze, t. 52 (Saggio Distrib. Metod. 



Auimal Vertebr. a Sangue Freddo, p. 39), 1832. 

 =PacLydontes, BIceker, EDiim. Sp. Pise. Archip. Indico, p. xiv, 1859. 

 =Gynjm)doute8, BIceker, Atlas Ich. des ludes Ncerlaud., t. 5, p. 43, 1865. 

 =iGynmodoutidi, Bleeker, Nederl. Tijdscbr. Dierk., v. 3, p. 16, 1866. 



Plectognatlis without a spinous dorsal, with the body more or less 

 sacciform, the scales typically spiuiform aud with root-like insertions, 

 (archa'typically rhomboid), and with the jaws enveloped in an enamel- 

 like covering, and without distinct teeth. 



TRIODONTOIDEA. 



SYNONYM. 



Triodontoidea, Gill, u. superfam. 



Gj'mnodontes with a movable i^elvic apparatus, well-developed ribs, 

 a normally developed caudal region, the upper jaw with a median 

 suture, and the lower jaw subdivided. 



TEIODONTID^. 



FAMILY SYNONYMS. 



= Denxieme famille [des Plectognathes], Darestc, Aun. Sc. Nat. (3), v. 14, p. 122, 1850. 

 = Logauiosomes, Hollard, Auu. Sc. Nat. (4), Zool., v. 13, pp. (33), 46, 1860. 

 ^^Triodontoidei, Bleeker, Ich. Atlas des ludes Nderland., v. 5, p. 83, 1865; Nederl. 



Tijdschr. Dierk., v. 3, p. 19, 1866. 

 = Tiiodontida', GUI, Arraugemeut Fain, of Fisbes, p. 1, 1872. 

 ^^Triodoutes, Fitzinger, Sitzuugsber. K. Acad, der Wissenscb. (Wieu), B. 67, 1, Abtb., 



p. 47, 1873. 



SUBFAMILY SYNONYM. 



=:Triodouieii8, Hollard, Ann. Sc. Nat. (4), Zool., v. 13, p. 46, 1860. 



The only familj'^ of the superfamily. 



TETEODONTOIDEA. 



SYNONYMY. 



<Tetrodoutoidea, Gill, Cat. Fishes E. Coast N. Am., p. 1, 1873. 



Gymnodontes without either pelvis or ribs, with a normally developed 

 caudal region, with the intermaxillary and dentary bones severally 

 connected by suture at middle, the supramaxillaries curved outwards 

 behind the intermaxillaries, the ethmoid more or less projecting in front 

 of the frontals, and the i)ostfrontals extended outwards as far at least 

 as the frontals. 



