by Greg Mayer
That’s more or the less the question Ngo Van Tri, a Vietnamese herpetologist, must have asked himself after having a meal like that shown below, which surely rivals anything Jerry’s had in Colombia.
Tri contacted Lee Grismer of La Sierra University and his son Jesse Grismer, a graduate student at Villanova University, both herpetologists. They went to Vietnam and found that it was an undescribed species, which they named Leiolepis ngovantrii in Tri’s honor, in a paper (whose title oddly brings to mind the 2003 Red Sox) published this past spring in Zootaxa (abstract only).
All new species are interesting, but new ones are found all the time. What makes this one especially of note (besides being discovered on a dinner plate) is that it is a parthenogenetic species– consisting only of females, and reproducing asexually. This is a rather unusual mode of reproduction in vertebrates, but a fair number of lizards, including species in the families Teiidae, Lacertidae, Geckonidae, and (like Leiolepis) Agamidae, reproduce this way. Most parthenogenetic lizard species have arisen by hybridization between two sexual species. The Grismers, using mitochondrial DNA, have been able to identify the maternal parent species of L. ngovantrii, and also of the three other parthenogenetic species of Leiolepis, showing that parthenogenesis in this genus has arisen in the usual way for lizards. It’s also known to occur spontaneously in normally sexual species, such as the Komodo dragon, Varanus komodoensis.
(And, I should mention that Lee Grismer is the author of one of the best “Animals of___” books ever: the magnificent Amphibians and Reptiles of Baja California, Including Its Pacific Islands and the Islands in the Sea of Cortés, University of California Press, 2002).
Grismer, J. and L.L. Grismer. 2010. Who’s your mommy? Identifying maternal ancestors of asexual species of Leiolepis Cuvier, 1829 and the description of a new endemic species of asexual Leiolepis Cuvier, 1829 from Southern Vietnam. Zootaxa 2433:47-61.
h/t: Steve Orzack, Fresh Pond Research Institute