IF you get it, can you send me a copy?????

I do not know many references about inner ear. But, here are some references that can help you:

Wever, Ernest Glen. "The ear and hearing in the frog, Rana pipiens." Journal of morphology 141.4 (1973): 461-477.

Lewis, E. R., Baird, R. A., Leverenz, E. L., & Koyama, H. (1982). Inner ear: dye injection reveals peripheral origins of specific sensitivities. Science, 215(4540), 1641-1643.

Purgue, A. P., & Narins, P. M. (2000). Mechanics of the inner ear of the bullfrog (Rana catesbeiana): the contact membranes and the periotic canal. Journal of Comparative Physiology A, 186(5), 481-488.

In addition to these bibliographies, you can consult the Wells book (The ecology and behavior of amphibians), specifically the session "anatomy and function of inner ear".

Best regards

Hi, the Hudspeth lab, at the Rockefeller University,  were I did a post-doc, works on Bull frog inner ear , among other animal models. Here is a link  to Manolo Castellano  paper on this subject. It contains some pics. 

http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0013777

Also if you Google "Hudspth AND bullfrog" and check images you will see several 

References were very helpful, good bibliography.

Thanks to Manuel, Soledad and Michael

Hola Fer.

Mira que estoy buscando las placas de Jaime de E johnstonei y no las encuentro pero es porque movieron laboratorios y oficinas aca por lo de el aire. Si aparecen deberiamos aprovechar y publicarlas. Pero hay que hablar con Jaime y el nunca me ha contestado.

Un abrazo