A new species of Didogobius (Teleostei: Gobiidae) from the Canary Islands Author Van Tassell, James L. Author Kramer, Annemarie text Zootaxa 2014 3793 4 453 464 journal article 45898 10.11646/zootaxa.3793.4.4 a63841fc-b7d4-4a38-acfc-1d341dc9bde1 1175-5326 230376 847946D4-6AB2-4B36-8BB1-0CA59E60511D Key to the species of Didogobius 1a. Anterior head canals and pores present; preopercle canal and pores present or absent................................ 2 1b. Anterior canals and pores absent; posterior oculoscapular and preopercle canal absent; Canary Islands... Didogobius helenae 2a. Preopercle canal and pores present; caudal fin rounded........................................................ 3 2b. Preopercle canals absent; caudal fin lanceolate; D 2 I ,14 depressed fin reaching caudal fin; anal I,12. Lateral scales 65–70, cycloid only; eastern Mediterranean off Israel ................................................ Didogobius bentuvii 3a. Body with only cycloid scales............................................................................ 4 3b. Body with cycloid scales anteriorly, ctenoid posteriorly....................................................... 5 4a. Scales in lateral series 33–37; Canary Islands and Cape Verde .................................... Didogobius kochi 4b. Scales in lateral series 55–56; Western Mediterranean Sea including Adriatic Sea.................. Didogobius schlieweni 5a. Scales in lateral series 28–30; D1 first spine longest; Mediterranean Sea endemic.................. Didogobius splechtnai 5b. Scales in lateral series more than 36; D1 second spine longest.................................................. 6 6a. Scales in lateral series about 37; D2 reaching caudal fin when depressed; interorbital width 19% of eye diameter; São Tomé Island........................................................................... Didogobius amicuscaridis 6b. Scales in lateral series 48–51; D2 not reaching caudal fin when depressed; interorbital width 33–36% of eye diameter; Cape Verde Islands............................................................................ Didogobius wirtzi