Prepared microscope slide: Annelida Lumbricus intestinal region x.s.
Kingdom: Animalia / Phylum: Annelida / Class: Clitellata / Order: Haplotaxida / Family: Lumbricidae / Genus: Lumbricus (Linnaeus, 1758)
From Lander University, in Greenwood, South Carolina, Invertebrate Anatomy OnLine presents a discussion of the earthworm (Lumbricus terrestris) HERE.
These prepared slides are of very high quality produced in the U.S. by Lee Gonzales, a licensed histologist. The attached image is of the slide being offered, at 400x.
For information about the Accu-Scope 3012 Binocular Microscope with E Plan Achromat Objectives, click HERE.
Forensics Lab Supply Number 3862153.
"x.s." means "cross section".