Nygellidae Andrassy, 1958
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Ref. Pena-Santiago (2006) |
Ahmad and Jairajpuri, 1981 indicated that the presence
of cardiac glands and a mural tooth were more important characteristics of
Nygolaimoidea than the spiral sheath around the baseal portion of the
esophagus because the spural sheath occurs in some other dorylaims.
Classified as predators (Yeates et al, 1993).
A note on the authority for the family Nygellidae
Andrassy (1958) proposed the subfamily Nygellinae in a publication that is not well known, written in Hungarian, and focussed on the Hungarian fauna (see images below).
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| Images provided by Dr. Reyes Pena-Santiago, December 2021 | |
Jairajpuri (1964), apparently unaware of Andrassy's paper, proposed a new family Nygellidae and a new subfamily Nygellinae. The new family and subfamily accommodated the single genus, Nygellus. Heyns (1982) and Ahmad and Jairajpuri (1981), also apparently unaware of the Andrassy (1958) document, agreed with the designation of Jairajpuri, 1964 as authority for Nygellidae although Siddiqi(1968) considered the family name invalid. In his 2009 book,
Andrassy clearly indicated that he was the authority for both Nygellinae and Nygellidae and did not mention Jairaqjpuri in that regard.
On th point of authoruty for the family and subfamily, I have benefitted with the wisdom of, and correspondence with Dr. Reyes Pena-Santiago:
"Andrássy is the author of both
taxa, Nygellidae and Nygellinae. The explanation is the statement included
in Chapter 8. Article 36.1 of the International Code of Zoological
Nomenclature (ICZN, https://www.iczn.org/the-code/the-code-online/,(
in fact a difficult text):
36.1. Statement of the Principle of Coordination applied to
family-group names
A name established for a taxon at any rank in the family group is
deemed to have been simultaneously established for nominal taxa at all other
ranks in the family group; all these taxa have the same type genus, and
their names are formed from the stem of the name of the type genus [Art.
29.3] with appropriate change of suffix [Art.
34.1]. The name has the same authorship and date at every rank.
Example. The family
name HESPERIIDAE (Lepidoptera), based on Hesperia Fabricius, 1793,
was established in 1809 by Latreille (as Hesperides). Latreille is deemed
also to have simultaneously established the coordinate superfamily
name HESPERIOIDEA and the coordinate subfamily name HESPERIINAE (even though
the former was first used by Comstock & Comstock (1904) and the latter by
Watson (1893)). The authorship and date of all three names is Latreille,
1809.
The key point is that the ICZN establishes that all the
names belonging to the family group (superfamily, family, subfamily, tribe)
must keep the same authorship and date, independently of their rank. Of
course, the root is maintained in all the names, but the ending (-oidea,
-idae, -inae, -ini, respectively) will change according to the rank.
So, Andrassy's establishment of the subfamily Nygellinae results in he, not Jairajpuri, being the authority for the family Nygellidae. The authorship and date of names is Andrassy, 1958!
References
Ahmad, M. and Jairajpuri, M.S. 1981. .Notes on
the systematic position of the genus Nygellus Thorne, 1939.
Indian J. Nematology 11:114-115.
Andrássy, I. 1958.
Szabadonélö fonalfergek Nematoda libera.
Fauna Hungarica 36 III Kötot, 1 Füzet.
Magyarorszag Allatvilaga, Budapest. 362 pp.
Andrassy, I. 2009. Free-living Nematodes of Hungary III.
Hungarian Natural History Museum, Budapest. 608p.
Heyns, J. 1968. A monographic study of the
nematode families Nygolaimidae and Nygolaimellidae. Republic of South Africa
Entomology Memoirs 19.
Heyns, J. 1982. On the authority for the family
Nygellidae. Nematologica 28:452-453.
Jairajpuri, M.S. 1964. Studies on Nygellidae n. fam. and
Belondiridae Thorne, 1939 (Nematoda: Dorylaimoidea) with description of ten
new species from India. Proc. Helminthol. Soc. Washington 31:173-187.
Pena-Santiago, R. 2006. Dorylaimida Part 1. Superfamilies Belondiroidea, Nygolaimoidea and Tylencholaimoidea. Pp 326-391 in E. Abebe, István Andrássy, W. Traunspurger (eds) Freshwater Nematodes: Ecology and Taxonomy. CABI Publishing.
Siddiqi, M.R. 1968. Five new sopecies of Belondiroidea (Nematoda) from Sibsagar, India, with a revised classification of the superfamily. mProc. Helminht Sopc. Washington 35:248-258.
Yeates, G.W., T. Bongers, R. G. M. De Goede, D. W. Freckman, and S. S.
Georgieva. 1993. Feeding habits in soil nematode families and genera—An outline
for soil ecologists. Journal of Nematology 25:315-331.