Hi Mike, Scot, Thank you for your quick replies. I heard that Rio Xie is one of the upper stream of Rio Negro. Because I do not have any detailed maps or reference books aound there, I cannot conclude whether "Rio Xie" and "Rio Xingu" is identical or not. However, since I have seen the fishes "A. elizabethae (Rio Xie)" and "A. elizabethae (Rio Xingu)" in a same shop, I guess "Rio Xie" and "Rio Xingu" is not identical. Yamazaki Book (in Japan, it often called "pieces" book) is one of the most popular references in Japan. In that book, he says that "A. minkeny (spelling?) is the pertensis-like fish with anal spot・瘢雹・瘢雹・瘢雹" but it does not tell me more about this fish. So A. sp. Rio Xie might be closely allied to A. minkeny. Anyway A. minkeny is also not so popular in Japan. Danny, Japan. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!