No. 450.] 



NOTES AND LITERATURE. 



473 



mackerel-like fishes. He finds no warrant in associating the Opah 

 with the sticklebacks to form a group Catosteomi. The present 

 writer agrees fully with Dr. Gill in his view of this matter. 



In the Proceedings of the U. S. National Museum (XXVI, 1903), 

 Dr. Gill discusses the generic names in a forgotten work of Heinrich 

 Friedrich Linck, 1790. " Versuch einer Eintheilung der Fische nach 

 der Zahnen " in " Magazin fiir das Neueste aus der Physik und 

 Naturgeschickte," published at Gotha. The paper is without value, 



are Mustelus for Mustehis lievis = Squalus mustelus. This antedates 

 the use of the name for Mustelus canis, for which Dr. Gill suggests 

 the new group name, Cynias. Pristis and Mola of Linck are equiv- 

 alent to the genera later so named by Latham and Cuvier. The other 

 new generic names are Rhinobatos (without type indicated), Cal- 

 lichthys (no type), Alosa (no type), Thymallus (no type), Soarus 

 (definition unintelligible), Barbatula (= Cobitis). 



Gill further shows that .the name Macrodon Schinz (1822) was 

 intended for the genus of Scia^noid fishes called Ancylodon by 

 Cuvier in 1817, preoccupied by Ancylodon Illiger 181 1, and later 

 named Sagenichthys by Berg. The type of the Scisnoid genus 

 should, therefore, stand as Macrodon ancylodon. 



For the genus of Erythrinida; called Macrodon by Miiller in 1842, 

 Gill substitutes the name Hoplias. 



He further calls attention to the fact that Oken in 18 17 (in Isis) 

 gave classical names to the genera of fishes left with French names 

 only by Cuvier in the first edition of the Regne Animal of the same 

 year. From this work, the following names must date: Monacan- 

 thus, Alutera, Triacanthus, Curimatus, Piabucus, Cirrhinus, Bagre, 

 Lota, Brosme (not Brosmius, a later form), Monochirus, Aurata, 

 Plectropomus, Priacanthus, Stellifer, Sander (= Lucioperca) , Zingel, 

 Otolithes and Chelmo. 



In the same Proceedings, Mr. B. A. Bean figures the rare eel Ahlia 



In the Mark Anniversary Volume, Dr. C. R. Eastman discusses 

 again the character of the extraordinary structures found in Carbon- 

 iferous rocks and known as Edestus, with a bibliography of the 

 subject. These are now believed to be coalescent whorls of teeth of 



