Johngarthia cocoensis, a new species of Gecarcinidae MacLeay, 1838 (Crustacea, Decapoda, Brachyura) from Cocos Island, Costa Rica Author Perger, Robert Author Vargas, Rita Author Wall, Adam text Zootaxa 2011 2911 57 68 journal article 46699 10.5281/zenodo.277812 96327166-d6b8-47d3-893f-517c372c5bcd 1175-5326 277812 Key to Pacific Ocean species of Johngarthia 1. Outer apical lobe of third maxilliped merus as long as or longer than inner apical lobe, outer apical lobe lateral border rounded ( Fig. 5 D)................................................................................... J. planatus - Outer apical lobe of third maxilliped merus shorter than inner apical lobe, outer apical lobe lateral border relatively straight. 2 2. Third maxilliped merus longer than wide, inner apical lobe not reaching epistomal tooth, lobes mostly separated in resting position, palp of third maxilliped merus partly exposed ( Fig. 5 B)................................. J. cocoensis n. sp. - Third maxilliped merus as long as wide, inner apical lobe reaching epistomal tooth, lobes mostly overlapping in resting position, concealing palp of third maxilliped merus ( Fig. 5 C)........................................... J. malpilensis