| |
| Mechanisms of sound production in the ariid catfishes Galeichthys and Bagre. Bulletin of the AMNH ; v. 124, article 1 |
| |||||||||||||||||||
| Download Problems | |
| Title: | Mechanisms of sound production in the ariid catfishes Galeichthys and Bagre. Bulletin of the AMNH ; v. 124, article 1 |
| Other Titles: | Sound in catfishes |
| Authors: | Tavolga, William N., 1922- |
| Issue Date: | 1962 |
| Publisher: | New York : [American Museum of Natural History] |
| Series/Report no.: | Bulletin of the American Museum of Natural History ; v. 124, article 1 |
| Abstract: | "The skeletal basis of the sound producing mechanism in the ariid catfishes Galeichthys felis and Bagre marinus consists of a thin shelf of bone which is firmly attached to the anterior dorsal wall of the swim bladder. This so-called 'elastic spring,' or 'Springfederapparat,' is formed from the parapophysis of the fourth vertebra. The anterior ramus of this parapophysis, herein named the 'Müllerian ramus' (after Johannes Müller who, in 1842, first described the structure), is the main vibrating element in sound production. The skulls and anterior vertebral complexes of Galeichthys and Bagre are figured and described, with comparisons with a non-sonic silurid form, Wallago. The 'protractor muscle' (so named by Bridge and Haddon in 1893) which activates the Müllerian ramus is a highly vascularized conical muscle, the origin of which is on the under side of the epiotic lamina and insertion on the Müllerian ramus. It is innervated by the dorsal branch of the occipital nerve. The relationsh... |
| Description: | 30 p., 28 p. of plates : ill. ; 27 cm. Includes bibliographical references (p. 27-30). |
| URI: | http://hdl.handle.net/2246/1211 |
| Department of Library Services
American Museum of Natural History Central Park West at 79th St., New York, NY 10024 © American Museum of Natural History, 2006 Powered by DSpace
|
||