Zootaxa,Annotated checklist of the rotifers (Phylum Rotifera...

Dissotrocha hertzogi aculeata Koste, 1996 versus Dissotrocha aculeata aculeata Ehrenberg, 1838
Koste’s (1996) taxon has distinct body outgrowths (none in D. hertzogi), and lacks the extraordinarily
long rostrum ciliae and offset spur tips of Dissotrocha hertzogi (see Donner, 1965). These morphological
differences are of a nature and magnitude that is generally considered relevant at the species level in bdelloid
rotifer taxonomy. In addition, it is particularly difficult to conform a species, let alone a subspecies,
definition to an exclusive parthenogenetically reproducing taxon. I therefore suggest treating the two as
separate species-level taxa and, because of the homonymy of Koste’s name with Ehrenberg’s, I have the
pleasure to suggest the name Dissotrocha kostei, honouring Dr h.c. W. Koste, as replacement name for the
taxon (nomen novum).
Keratella heywoodi Dartnall, 2005 = K. kostei Paggi, 1981 (new synonym)
Both Dartnall’s (2005) and Paggi’s (1981) descriptions point to the absence of a foundation pattern on the
dorsal lorica, small size of antero-median and antero-intermedian, but large and ventrally-pointed anterolateral
spines as characteristic features of their new species. As Dartnall (2005) does not mention K. kostei
in his text, he may not have been aware of the existence of that name. The species occurs in Patagonia,
Argentina (Paggi, 1981), and on the Falkland Islands and South Georgia (Dartnall, 2005).
Pompholyx acutangula Wu, 1981 = Testudinella brevicaudata Yamamoto, 1951 (new synonym).
Wu’s (1981) clear and detailed illustrations depict an animal with a large foot aperture. It therefore does
not belong to Pompholyx, rather it is a previously described Testudinella, T. brevicaudata.
Testudinella tridentata obtusa Wu, 1981 = Testudinella greeni Koste, 1981 (new synonym).
The figures and photographs of Wu’s T. tridentata obtusa unmistakably depict a T. greeni. Apparently, Wu
(1981) was not aware of the latter species.
Hemimonostyla blachei tutiurensis Sudzuki, 1998 = Lecane stenroosi Meissner, 1908 (new synonym).
The photograph of H. blachei tutiurensis by Sudzuki (1998) leaves no doubt as to its synonymy with L.
stenroosi.
Lecane kasumiensis Sudzuki, 1998 = Lecane papuana (Murray, 1913) (new synonym).
Again, the photograph of L. kasumiensis by Sudzuki (1998) leaves no doubt as to its synonymy with L.
papuana.
Lepadella bractea Myers, 1934 versus Squamella bractea Ehrenberg, 1838.
Myers’ name is threatened by its homonymy with Squamella bractea Ehrenberg, an established junior
synonym of Lepadella patella Müller, 1786. Here, a replacement name is in order as confusion between
the two has occurred (Nogrady in Boyko, 1994), notwithstanding that Ehrenberg’s name is hardly ever
found in combination with the genus name Lepadella. Myers’ (1934) animal is a remarkable but rare
Northeast North American endemic that is unmistakable by the prominent zig-zag crest on its dorsal lorica.
I suggest the name Lepadella zigzag as nomen novum for the taxon.
8 · Zootaxa 1564 © 2007 Magnolia Press
SEGERS