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The "new" whitei (was KillieTalk Digest V4 #445 )
>>>>I looked over the paper by Costa last night from the Icthyological
Exploration of Freshwaters. As for the difference between Nematolebias
whitei and papilliferus I examined the photos and checked both of my stocks
that are labeled "whitei" and discovered that I had both fish. Costa does
give a way to distinguish differences but after examining the photos and
looking at the fish it was blatantly obvious they are different. Nem.
whitei is distinguished in the males by patterns of the gold pearl spots on
the flanks of the body. Although the pattern seems regular, on the Nem.
papilliferus those spots form vertical bars. Further differentiating
species, what are patterned rows of pearl spots on the unpaired fins of Nem.
whitei become solid stripes between the rays in Nem. papilliferus.<<<<
Now, correct me if I am wrong, but I thought taxonomy had progressed,
using DNA, beyond basing new descriptions of a genus on such tiny color
differences. I thought this was the kind of approach that got killie taxonomy
in a mess starting way back with Boulenger and Ahl. Of course, I am still
trying to see the difference between magnificus and picturatus!
>>>What separates "myersi" into Simpsonicthys is not very obvious and the
reasons are primarily dorsal fin ray patterns. Which, guess what, is
suggesting further review of Simpsonicthys and potential further
Is any of Costa's work based on DNA analysis?
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