Hi Brian, yes, I'd be happy to receive the 2nd reference page but no rush at all on that. 40 minutes? It'd take me less than a minute. Just let me know when you need a helping hand
By the way, the report does indeed mention that "the genus Tylototriton is generally regarded as primitive in morphology". So there you have it
Ralf, the report says the pattern of genetic differentiation both within E.andersoni and within C.ensicauda coincides with the geological estimate that the Okinawa Group was separated from the Amami Group by the formation of a strait in the mid-Pleistocene, and that the Amami Group was partitioned later into several islands. It says the similar pattern and degree of intraspecific differentiation seems to indicate that the two species were both present when the island groups broke up and that they underwent the same vicariant events.