Note:  this page replaces the former webpage entitled “INHS Center for Annelida Resources’, previously linked from:

Nomenclatura Oligochaetologica – a catalogue of names, descriptions, and type specimens of the Oligochaeta. Editio Secunda.

This web-based second edition of Nomenclatura Oligochaetologica was launched on Monday, 6 January, 2014.

Note:  several sites listed below ** are being updated, reformatted and moved to new servers.

WoRMS – World List of Marine Species 

This extensive site provides an authoritative and comprehensive list of names of marine organisms (and now being expanded to also include freshwater taxa), including information on synonymy. While the highest priority goes to valid names, other names in use are included so that this register can serve as a guide to interpret taxonomic literature. [read more about WoRMS ]

Usage of data from WoRMS in scientific publications should be acknowledged by citing as follows:

WoRMS Editorial Board (2024). World Register of Marine Species. Available from at VLIZ. Accessed {year-month-day} doi:10.14284/170

Methods for the Study of Segmented Worms (Annelida)

We are now preparing content for the titles of pages listed below that will summarize recommended methodologies for field collection, preservation, laboratory processing, identification, and archiving of annelid specimens and their associated data.  

|  Aquatic oligochaete worms  |  Terrestrial oligochaetes (earthworms)  |

|  Leeches  |  Polychaete worms (including Aeolosomatida)  | 

|  Literature Cited and Pertinent References for the above sites  |

Taxonomic workshops organized and presented/co-presented by M.J. Wetzel and others.

* This page replaces the former webpage entitled “IHNS Center for Annelida Resources’, formerly linked from this URL:

Friendly disclaimer:  Updates to this site continue; most of the information has been transferred to this page from previously active websites I established in the early- and mid-1990s (and continue to maintain).  Thus, you will likely experience redundant visits to several sites as you navigate through the linkages, above.  A few of the above sites have been static for a while; these will be updated when transferred to live links from this page.  If you experience a broken link (that is, are not directed to an active site, but rather a splash page that states something similar to ‘Page Not Found”, or “Oops! That page can’t be found”, please let me know about this.  If you know of sites associated with annelid resources that are not included above, please send the link to me.  Thank you for your interest. – mjw      mjwetzel[AT]

[page update: 09oct2022; 01Jan,05April2023; 01Jan2024; mjw]