PEOCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 515 



NOTE OIV THE r,EPTOC ARDIAIVS. 



BY TI!£ODOR£ OILL. 



To complete the series of notes ou the nomenclature, etc., of the inferior 

 vertebrates, I add the synonyms of the class Leptocardii and its sub- 

 ordinate terms. 



THE CLASS LEPTOCAEDIANS. 



Synonyms as class names. 



=Myelozoa {Is. Geoffroy St. Hilaire), Bonaparte, Comptes Eendus hebd. seances Acad. 



Sci., t. 43, p. 1022, 1856. 

 = Acrania *, HacJcel, Generelle Morphologie der Organismen, B. 2, p. cxix, 1866. 

 = Leptocardia, 0. Schmidt, Handbuch der Vergl. Anat., 6. aufl., p. 259, 1872. 

 = Leptocardia, Cope, Proc. Acad. Nat. Sci. Phila., [v. 20], p. 256?, 1868. 

 = Leptocardii, Gill, Arrangement Fam. Fishes, pp. ix, 25, 1872. 



Synonyms as suiclass names. 



= Leptocardii, MUller, AbhandL K. Akad. Wiss. zn Berlin, 1844, p. — , 1846. 

 = Entomocrania, Huxley, Free. Zool. Soc. London for 187G, p. 58, 1876. 



THE ORDER AMPHIOXL 



Synonyms as ordinal names. 



= ArQpliioxi, Bonaparte, Catalogo Metodico dei Pesci Europei, pp. 9*, 92*, 1846. 

 = Cirrostomi, Owen, Anatomy of Vertebrates, v. 1, p. 9, 1866. 



BRANCHIOSTOMID^. 



Synonyms as family names. 



=:Amphioxid0B, Gray, Synopsis of the Brit. Mns., p. 150, 1842. 



= Amphioxini, MUller, Abhandl. K. Akad. Wiss. zu Berlin, 1844, p. 198, 1846. 



= Brauchiostomidse, Bonaparte, Catalogo Metodico dei Pesci Europei, i)p. 9*, 92*, 1846. 



=Cirrostomi, Owen, Anatomy of Vertebrates, pt. 1, p. 9, 1846. 



= Amphioxidse, Gray, List Specimens Fish in Brit. Mus.,pt. l,p. 149,1851. 



= Amphioxoidei, Bleeker, Enum. Sp. Piscium Archipel. Indico,p. xxxiii, 1859. 



= Branchostomoida;, Gill, Cat. Fishes E. Coast N. Amer., p. 03,1860. 



= Cirrhostomi, Giintlier, Cat. Fishes Brit. Mus., v. 8, p. 513, 1870. 



A representative of this family (apparently Br anchio stoma lanceolata) 

 has been found on the coast of the United States, on the Atlantic side, 

 as high north as the Chesapeake Bay, and on the Pacific Coast a species 

 also occurs (Branchiostoma, Cooper., Kat. Wealth Cal. by Cronise, p. 498, 



* The "class" Acrania is coequal with the '' suhphylum" Leptocardia of Hackel 

 ("Erstes subphylum der Wirbeltliiere : Leptocardia, Eohrenhezzen [=] Eiuzige 

 classe der Leptocardier : Acrania Schddellosc"). 



