Problems with the nomenclatural availability and promulgation date of zoological works, nomina and nomenclatural acts published electronically online

Various problems posed by the 2012 Amendment to the International Code of Zoological Nomenclature are reviewed. They concern mainly the nomenclatural availability and the promulgation date of works published online and of the new nomina and nomenclatural acts they contain. A methodology is proposed for the analysis of these problems in many works published after 3 September 2012. A detailed survey of 120 herpetological online publications having nomenclatural implications is presented: 63 of them include unavailable nomina and nomenclatural acts, and 57 of them were made available through their printed versions at dates subsequent to that stated on their PDFs. Detailed proposals and recommendations to authors, editors and referees, publishers, libraries, and concerning the Code, Zoobank and the Commission, are offered to try to limit the negative impact of these problems in zootaxonomy.