But why Kryptoglanis is so different, and what its closest relatives are, remains a mystery.
Lundberg's team wasn't alone in asking the question. Lundberg's team examined three specimens of Kryptoglanis using digital radiography, and one of these specimens using high-resolution X-ray computed tomography resulting in detailed, three-dimensional CAT scan images after careful preparation and analysis by Lundberg's colleague and co-author, Kyle Luckenbill, interim collection manager and a research assistant at the Academy. (A video visualization of the fish's internal bony structures is available at http://youtu.be/PBqndwVdnrc.)
At the same time, a separate team led by Ralf Britz at the Natural History Museum of London independently examined the bone structure of Kryptoglanis using a technique of visualizing the skeleton called clearing and staining a chemical method in which the fish's soft tissues are rendered as clear as glass and bones and cartilage are stained in contrasting colors. This team's description of the structures was published in the March 2014 issue of the journal Ichthyological Exploration of Freshwaters.
"There was an amazing congruence between the results," Lundberg said. "Neither of us was way out."
Neither could figure out which other catfishes Kryptoglanis was most
|Contact: Rachel Ewing|