Published in Smithsonian Herpetological Information Service, in 1996, in volume 108, pages 1-24
Published in Smithsonian Herpetological Information Service, in 1996, in volume 109, pages 1-43
Published in Smithsonian Herpetological Information Service, in 1996, in volume 110, pages 1-8
Published in Smithsonian Herpetological Information Service, in 1996, in volume 111, pages 1-9