76 THE GENERA OF FISHES 



LXVI. HUMBOLDT, Ueher den Eremophilus und den Astroblepus, 

 swei neue Fisch-Gattungen: Observationes Zoologicse, and in 

 Philos. Mag., XXIV, 1806. 



Alexander von Humboldt. 



Eremophilus Humboldt, 17, 329; type Eremophilus mutisii Hum- 

 boldt. 



Astroblepus Humboldt, 19, 331 ; type Astroblepus grixalvii Hum- 

 boldt. 



LXVH. DUMERIL, Dissertation sur les Poissons Cyclostomes, i 



Andre Marie Constant Dumeril. 



Ammocoetus Dumeril ; type Petromyzon planeri L. 



The larva of Lampetra fluviatilis (L.) and of Petromyzon marinus L. 

 Preferably retained, under the usual spelling, Ammoccetes, as a designation for 

 larval lampreys. Otherwise replaces Lampetra Gray, 1854; type Petromyzon 



FLUVIATILIS L. 



LXVHL TILESIUS, Descriptions de quelques Poissons: Krusenstern's 

 Reise um die Welt., Mem. Soc. Nat. Moscow, H, 1809. 



W. G. VON Tilesius. 

 Not seen by us. 



Ericius Tilesius, 213, 1809; type Ericius (japonicus Houttuyn). 



A synonym of Monocentris Bloch & Schneider. 

 Hexagrammos (Steller) Tilesius, Actae Academ. Petropol., H, 335, 

 1809; type Hexagrammos stelleri Tilesius (Hexagrammos 

 ASPER Tilesius). 

 Often written Hexagram mus. 



LXIX. GEOFFROY SAINT HILAIRE, Poissons du Nil, de la Mer 

 Rouge et de la Mediterranee: in Description de I'Egypte, publee 

 par Napoleon le Grand, Histoire Naturelle, I, 1809- 1827. 



fixiENNE pRANgOIS GeOFFROY SaINT HiLAIRE. 



In this huge folio a few species of fishes are described in great detail, 

 with steel engravings. The work is in three parts, published in 1809, 



