A set of photographs documenting the osteology of extant trionychid turtles (Trionychidae) in natural history collections

A thorough understanding of the osteological evolution of trionychid
turtles has long been hampered by poor access to comparative skeletal
collections as specimens are scattered across the globe. To partially
alleviate this situation, we here present a collection of photographs of
608 trionychid specimens representing most currently accepted species.
This collection is not the result of a coordinated effort. Instead,
pictures were taken over the course of the last four decades using varying
equipment and with different goals in mind. The photographs of each
specimen are contained in a single folder, which is labelled using updated
taxonomic attributions and collections numbers. Institutional acronyms are
listed below. Most folders contain an image of the museum label. The vast
majority of pictures are associated with a metric scale, but local coins
were used when no scale was available. The relevant coins and their sizes
are listed in the readme.