Systematic revision of the family Kalliapseudidae (Crustacea: Tanaidacea) Author DRUMM, DAVID T. Author HEARD, RICHARD W. text Zootaxa 2011 2011-12-23 3142 1 1 172 http://dx.doi.org/10.11646/zootaxa.3142.1.1 journal article 10.11646/zootaxa.3142.1.1 1175­5334 6263899 Key to species of Mesokalliapseudes 1. Rostrum acute ( Fig. 83A ).......................................................... M. crassus ( Menzies, 1953 ) - Rostrum round ( Fig. 83B )............................................................................... 2 2. Cheliped fixed finger of propodus ½ or more length of dactylus ( Fig. 83C ); antennule inner flagellum with four articles ( Fig. 83E )..................................................... M. quadriflagellata Drumm and Morales-Núñes, 2010 - Cheliped fixed finger of propodus ½ or less length of dactylus ( Fig. 83D ); antennule inner flagellum with three articles ( Fig. 83F )................................................................................................ 3 3. Some pereonites with apophyses ( Fig. 83G ); mandibular palp terminally without single spiniformseta.................. 4 - Pereonites without apophyses ( Fig. 83H ); mandibular palp terminally with single spiniform or simple seta............... 5 4. Pereopod 1 having ventrodistal corner of basis with single long seta ( Fig. 83I )................ M. viridis ( Menzies, 1953 ) - Pereopod 1 having ventrodistal corner of basis with a single short and stout spiniform seta ( Fig. 83J )............................................................................................... M. soniadawnae Bamber, 1993 5. Pleotelson broader than long ( Fig. 84A ); mandibular palp terminating in either a long and stout spiniform seta or a long simple seta................................................................................................. 6 - Pleotelson longer than broad ( Fig. 84B ); mandibular palp terminating in a single short spiniform seta ( Fig. 84C )........................................................................................ M. thalasispeleus Guţu, 2006 6. Mandibular palp terminating in a single elongate spiniform seta ( Fig. 84D ); chela with three or four setae midway on the dactylu cutting edge and one distal seta near base of unguis ( Fig. 84D )..................... M. brasiliensis ( Băcescu, 1986 ) - Mandibular palp terminating in a single, long simple seta ( Fig. 84E ); chela with more than 10 setae on the dactylus cutting