482 ACIPENSEKID^K. - PERCID^. 



Family ACIPENSERID^E. 



Genus ACIPENSER. 



5. Acipenser sturio, Linn. Common Sturgeon. 

 Hab. European Rivers. 



a. Purchased, July 26, 1863. 



6. Small example from the Elbe. Purchased, 1864. 

 c. Presented by T. Grove, Esq., May 15, 1867. 

 d-f. Purchased, Dec. 10, 1867. 

 g. Presented by Messrs. C. Grove, March 7, 1868. 

 h. Presented by Messrs. Grove & Co., May 7, 1869. 

 i. Presented by Mr. T. Charles, July 15, 1871. 

 . Purchased, July 15, 1873. 



Family GASTEROSTEID^. 



Genus GASTEROSTEUS. 



6. Gasterosteus aculeatus, Linn. Scaly-sided Stickleback. 

 Hab. British Seas. 



7. Gasterosteus pungitius, Linn. Ten-spined Stickleback. 

 Hab. British Seas. 



8. Gasterosteus spinachia, Linn. Fifteen-spined Stickleback. 

 Hab. British Seas. 



Family PERCID^E. 



Genus PERCA. 



9. Perca fluviatilis, Linn. Common Perch. 

 Hab. British fresh waters. 



Genus LABRAX. 



10. Labrax lupus (Lacep.). Bass. 

 Hab. British Seas. 



