<a href=showthread.php?s=&postid=8872818#post8872818 target=_blank>Originally posted</a> by snorvich
Well according to Kuiter they are siblings and for the most part I use Kuiter as my authority except when he disagrees with Dr. Tanaka. Kuiter shows two distinct species of Cirrhilabrus.
Cirrhilabrus lyukyuensis was first described by C. Ishikawa in 1904. It was supposed to be
Cirrhilabrus ryukyuensis after the Ryukyu Islands.
Here is the original reference: Ishikawa, C. 1904 (8 Feb.) [Ref ID: 9847]
Notes on some new or little known fishes of Japan. Part I. Proc. Dept. Nat. Hist. Tokyo Imperial Mus. v. 1: 1-17, Pls. 1-7.
I suppose Prof. Ishikawa wrote it in Japanese and whoever translated it made the error. R's always come out as L's whenever I use Alta Vista's Babelfish online translation program. For example, "leaf" tank instead of "reef" tank. I think it's a problem with phonetics.
In any case, it was never intended to be named
Cirrhilabrus lyukyuensis in the first place. That was always incorrect.
However, for the past 15 years or so, at least going back to Dr. Randall's 1992 publication, it has been listed as a synonym for
C. cyanopleura:
Randall, J. E. 1992 [Ref ID: 20249]
A review of the Labrid fishes of the genus Cirrhilabrus from Japan, Taiwan and the Mariana Islands, with description of two new species. Micronesica v. 25 (no. 1): 99-121.
And if you
search ITIS under the Taxonomic Serial No.: 613501 or the scientific name:
Cirrhilabrus lyukyuensis you will find the current status is "invalid." It's a junior synonym for
C. cyanopleura.
If you go to fishbase and pull up
Cirrhilabrus cyanopleura and then click on Synonyms, you will find the
various invalid names for C. cyanopleura. Note that they credit Prof. Ishikawa with both
Cirrhilabrus lyukyuensis as originally published and also with
Cirrhilabrus ryukyuensis as corrected in later editions. So
lyukyuensis was never correct, it was a misspelling. The fact that it has been copied repeatedly over the past 100 years and survived that long is truly amazing. In any case, according to all current catalogues, both
C. lyukyuensis and
C. ryukyuensis are invalid and merely synonyms for
C. cyanopleura.
P.S. --
Here's another reference on wrasses published by Dr. Randall in 2000 -- Publication: Parenti, Paola, and John E. Randall. 2000. An annotated checklist of the species of the Labroid fish families Labridae and Scaridae. Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology, no. 68. 97.
Scroll down to
Cirrhilabrus lyukyuensis and you will see "invalid."