Oligochaetes are small worms found in mud and sand, relatives of earthworms. They are leeches that have bloodsucking annelids that at…

Annelids - Soil Ecology Wiki

Clitellum - an overview

Annelids - Encyclopedia of Arkansas

What is a leech? Is it an animal, insect, shell-less snail, or a fish? - Quora

worm - Students, Britannica Kids

Annelida - an overview

PHYLUM ANNELIDA Segmented Worms. CHARACTERISTICS A.Have many segments separated by internal walls called septa. Most segments are identical. Some segments. - ppt download

Annelids - Salt Marsh Guide Guide to the Salt Marshes and Tidal Creeks of the Southeastern United States

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richa's blog - Ecology of Annelida

Oligochaete, Earthworms, Soil, Ecology

Annelids - Salt Marsh Guide Guide to the Salt Marshes and Tidal Creeks of the Southeastern United States

Oligochaeta - an overview

Annelida (segmented worms, including earthworms, leeches and polychaetes)