250 PROCEEDINGS OF THE ACADEMY OF [1889- 



Antaceus medirostris Gill, Proc. Phila. Acad. Nat. Sci. 331, 1862 

 (name only). 



Aeipenser agassizii Dumeril, " Nouv. Arch. Mus. III. 181, pi. 11, 

 f. 2, 1867 ; " Dumeril, Hist, Poiss. II. 237, 1870 (San Francisco). 



Aeipenser alexandri Dumeril, "Nouv. Arch. Mus. III. 183, pi. 15, 

 f. 1, 1867 ;" Dumeril, Hist. Poiss. 239, 1870 (California). 



Aeipenser oligopeltis Dumeril, "Nouv. Arch. Mus. III. 184, pi. 

 15, f. 2, 1867;'" Dumeril, Hist. Poiss. II. 241, 1870 (San Fran- 

 cisco). 



Aeipenser acutirostris Ayres, Proc. Cal. Ac. Nat. Sc. 15, 1854; 

 Giinther, Cat. Fish. Brit. Mus. VIII. 344, 1870 (California). 



Habitat. — Pacific Coast of North America ascending the Frazer's, 

 Columbia and Sacramento rivers. 



Etymology. Lat. medium, moderate; rostrum, snout. 



This species is found on the Pacific Coast of North America and 

 ascending all the larger rivers. It attains a length of 8 to 10 feet 

 and a weight of 400 to 500 pounds. It is not used for food, said to 

 be poisonous. The specimen examined by us was taken by Jordan 

 and Gilbert at San' Francisco. 



3. Aeipenser sturio. Common sturgeon. 



Aeipenser corpore tuberculis spinosis aspero Artedi, Genera Piseium 

 65, 1738 (seas of Europe). 



Aeipenser sturio Linnreus, Syst, Nat. Ed. X. 237, 1753 (After 

 Artedi and of the copyists and of European writers generally); 

 Mitchill, Trans. Lit. and Phil. Soc. N. Y. 461, 1814 (New York); 

 Giinther, Cat. Fish. Brit. Mus. VIII. 342, 1870 (German ocean ; 

 Thames river ; Holland ; Rhine river ; New York) ; Dumeril, Hist, 

 Poiss. II. 184, 1870 (Bordeaux; mouth of the Seine; Rome); Day, 

 Fish. Gt. Brit. III. 280, 1885 ; Goode, Fish and Fisheries of U. 8. 

 660, pi. 243, 1884. 



Sturio vulgaris Rafinesque, Indice d'lttiol. Sicil. 41 and 58, 1810 

 (Palermo). 



Aeipenser lichtensteini Bloch and Schneider, Syst, Iehthyol. 348, 

 1801 (German ocean). 



Aeipenser oxyrhynchus Mitchill, Trans. Lit. and Phil. Soc. N. Y. 

 462, 1814 (New York); Le Sueur, "Trans. Amer. Phil. Soc. 394, 

 1818 ;" Storer, Rept. Fish. Mass. 178, 1839 (Massachusetts) ; De- 

 Kay, N. Y. Fauna Fish. 346, pi. 58, f. 189, 1842 (New York) ; 

 Ayres, Boston Jour. Nat. Hist. 287, 1842 (Long Island Sound) ; 

 Storer, Synop. Fish. N. Amer. 499, 1845. Gill, Cat. Fish. East 

 coast N.' Amer. 58, 1861; Dumeril, Hist. Poiss. II. 106, 1870 

 (Philadelphia) ; Bean, Proc. U. S. Nat. Mus. 114, 1880 (Potomac 

 river) ; Bean, Proc. U. S. Nat. Mus. 367, 1883 (Chesapeake Bay). 



Aeipenser sturio oxyrhynchus Mitchill, Trans. Lit. and Phil. Soc. 

 N. Y. 462, 1814; Jordan and Gilbert, Synop. Fish. N. Amer. 85,. 

 1882 ; Jordan, Cat. Fish. N. Amer. 13, 1885. 



