need images/diagrams of caudate lymph sacs

[paris]

does anyone know of any published diagrams of non-necturus caudate (prefer ambystoma) lymph sacs? I am looking mostly for dorsal or the ones in the head. I finally found an excellent photo of an anuran system (http://www.columbia.edu/cu/biology/faculty/kelley/webessay/frog_disease_site.html ) and it would help to have at least a good diagram or better a good photo of such for the caudates.