-----------------------------------------------|  Annual Accounting  |-----------------------------------------------
[ page update: 2019-IX-03 ]

As noted in the third paragraph of the main Prolegomenon page (also linked from the left navigator bar of this website), five new families have been established since publication of the third supplement (N.O.S.T.: Reynolds and Cook, 1993): Tumakidae {Righi, 1995; Stud. Trop. Andean Ecosystems 4(16): 600}, Parvidrilidae {Erséus, 1999; Proc. Biol. Soc. Wash. 112(2): 328}, Rhinodrilidae {James, 2012; Zootaxa 3540: 67}, Tritogeniidae {Plisko, 2013; African Invertebrates 54(1): 79}, and Kazimierzidae {Nxele and Plisko, 2016: African Invertebrates 57(2): 113}.  

Three other families have since been excluded: Kurenkovidae {Brinkhurst, 1989; Can. J. Zool. 67: 2736}, Lycodrilidae {Hrabě, 1982; Věstn. Česk. Spol. Zool. 46(3): 180}, and Lobatocerebridae {Nielsen, 2012: 115}. Full citations for the above publications are included on the References page (also linked from the left navigator bar of this website).

Accounts for new taxa described since publication of N.O.S.T. in 1993 (and those inadvertently omitted from N.O. and its three supplements, N.O.S.P., N.O.S.S., N.O.S.T.) have been added to this on-line nomenclator.   Although we have been diligent in our search for and access to publications in which taxa have been described as new to science, many have yet to be added – particularly the descriptions for new taxa that have been published in the lesser known scientific literature, or in books, symposia proceedings, and/or journals with inconsistent publishing schedules. 

The table below includes the number of taxa (genera, subgenera, species, and subspecies) first described as new to science, by year; we also include re-validations for several taxa previously designated species dubia.

Year Genera Subgenera Species Subspecies
         
1990 8 2 88 1
1991 5 2 65 2
1992 17 0 40 2
1993 2 4 76 1
1994 10 5 82 1
1995 8 0 62 0
1996 9 1 87 1
1997 10 1 148 0
1998 13 15 131 23
1999   2  0  50 1
2000 13 0 241 8
2001 2 0 69 2
2002 0 0 52 1
2003 1 0 63 0
2004 6 0 121 0
2005 1 0 36 0
2006 3 3 16 0
2007 4 0 44 0
2008 1 0 36 0
 2009   2   0   46   0 
2010 5 1
28 0
2011 2 0 32 0
2012 1 0
54 0
2013 1 0 62 13
2014 1 1 64 2
2015 5 0 51 2
2016 2 0 48 3
2017    1  42 1
2018  8   38  
2019  3   14  

Please note that the tallies in each column for the most recent years continue to increase as accounts are prepared and added to NO2 pages, with numerous accounts for newly described taxa in the years 2014–present remaining to be added.

We encourage all users of this website to contact us with information for taxa that have not yet been included in this nomenclator, and also information to correct mistakes on any of the pages.  We also encourage you to prepare the accounts of your newly described taxa for inclusion on the genus, subgenus, and species pages of this website, which will assist us in adding them quickly.  Please send us a pdf of your papers in which descriptions, re-descriptions, and re-validations that have been published – to assist us in preparing accurate accounts for those taxa.