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Mark J. Wetzel
Illinois Natural History Survey • Prairie Research Institute
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Research
Freshwater Oligochaetes in North America north of Mexico
Freshwater Leeches in North America north of Mexico
Aquatic Annelida of Illinois
Earthworms of Illinois
Aquatic Annelida of Grand Canyon National Park – Introduction
1991 River Trip
1993 River Trip
2001 River Trip
2006 River Trip
Checklist: Aquatic Annelida in Grand Canyon National Park
Literature Cited & Selected References – GCNP
Aquatic Annelida (Clitellata) of Great Smoky Mountains National Park, North Carolina and Tennessee, USA
Preliminary Checklist – Aquatic Annelids in Great Smoky Mountains National Park, North Carolina and Tennessee, USA
Literature Cited and Pertinent References – Aquatic Annelids of Great Smoky Mountains National Park, North Carolina and Tennessee, USA
Aquatic Oligochaetes of Yosemite National Park, California
Springs of Illinois – Introduction and Overview
Phase 1: Springs of Illinois – Project Summary
Phase 2: Springs of Illinois – Project Summary
Phase 3: Springs of Illinois – Project Summary
Teaching
Journal – Megadrilogica
Megadrilogica Home
Cumulative Index for the journal Megadrilogica
Instructions for Authors
Publications
Nomenclatura Oligochaetologica
Literature Cited – Illinois
