Schubart, 1946 : 166 Leptodesmus pintoi: Schubart, 1956: 421 Hoffman, 2000 : 106 Taxonomic review of the genus Atlantodesmus Hoffman, 2000 (Polydesmida: Chelodesmidae) Bouzan, Rodrigo Salvador Pena-Barbosa, João Paulo P. Brescovit, Antonio Domingos Zootaxa 2017 4236 2 269 290 67WLD Schubart, 1946 Schubart 1946 [151,623,1170,1196] Diplopoda Chelodesmidae Atlantodesmus Animalia Polydesmida 14 283 Arthropoda species pintoi      Leptodesmus pintoi  Schubart, 1946: 166, fig. 2 (Male holotypefrom Ilhéus ( 39°04’63’’W, 14°79’35’’S), Bahia, Brazil, 1919, E. Garbeleg., deposited in  MZSP412, examined).   Leptodesmus pintoi:Schubart, 1956: 421.    Atlantodesmus pintoi:  Hoffman, 2000: 106.    Additional material examined. BRAZIL. BAHIA: Ilhéus( 39°04’63’’W, 14°79’35’’S), 5♀, 1919, E. Garbecol. (  MZSP929,  MZSP930,  MZSP931,  MZSP932).   Reserva Biológica de Una( 39°02’98’’W, 15°19’54’’S), 22♂ 16♀,  XI/2001, A.D. Brescovitcol. (  IBSP991,  IBSP992,  IBSP1001,  IBSP1003,  IBSP995); 1♂ 2♀, 13–16/IV/ 1998, A.D. Brescovit et al.col. (IBSP 581, IBSP 584).  Ribeirão do Engano( 39°04’63’’W, 14°79’35’’S), 1♂, 1945, G. Pereiracol. (  MNRJ11954).  Jussari, Reserva Natural da Serra de Teimoso( 39°49’41’’W, 15°18’80’’S), 1♀,  08– 10/IV/1998, A.D. Brescovit et al.col. (  IBSP600).  Itabuna( 39°27’84’’W, 14°78’80’’S), 1♂, 1919, E. Garbecol. (  MZSP927).   Diagnosis.Males of  Atlantodesmus pintoidiffer from all other species of the genus by the acropodite process with a large, rounded spoon-shaped tip ( Figs 13A–B, 14A–B).   Redescription. Male( Holotype, MZSP 412). Coloration (in alcohol): Head reddish brown. Body brown with a median dorsal white band. Paranota tip white. Legs reddish. Telson white. Total length: 57. Collum 2.09 long, 7.11 wide. Antennomere lengths (1>7): 0.91; 2.40; 2.28; 2.20; 2.20; 1.78; 0.29. Gonopod opening: 1.21 long, 1.78 wide. Telson 1.95. Gonopods: coxae with two bristles in the distal dorsal side. Without coxal apophysis. Prefemoral region ventrally positioned. Prefemoral process long, with narrow stalk about half of total PfP length; apex expanded, calyx-shaped, edge of calyx slightly serrated ( Fig. 13A). The dorsal side of the prefemoral region with several folds ( Fig. 14D). Transition from prefemoral region to acropodite discontinuous. Small incision at the external margin of the telopodite is visible in mesal view. Reduced cingulum visible in ectal view ( Fig. 14C, arrow). Solenomere long and falciform. Acropodite process with a rounded lobe above the base of the solenomere ( Fig. 13A, arrow), acropodite process terminating in a large flat rounded apex ( Figs 13A–B).  Female( Paratype, MZSP 929). Coloration (in alcohol) and body as in male. Total length 50. Collum 2.03 long, 6.80 wide. Telson 1.83. Cyphopods ( Figs 15B–D) with numerous dispersed fine bristles on both valves. The apical part of cyphopod is slightly projected, the intermediate membrane projects between the valves ( Fig. 15B).  Variation: The body of some specimens can show a whitish yellow coloration, however the median band is present, but weakly developed. In some individuals the apex of the prefemoral process lacks serration.   Distribution.State of Bahia, Brazil, in areas containing the Brazilian Atlantic forest biome ( Por et al.2005). 1437069660 MZSP E. Garbe Brazil -15.326388 Bahia 21 -39.084167 14 283 MZSP 412 1 Bahia holotype 1437069667 MZSP E. Garbe Brazil -15.326388 Ilheus 21 -39.084167 16 285 MZSP 929, MZSP 930, MZSP 931, MZSP 932 5 5 BAHIA 1437069673 2001-11 IBSP Reserva Biologica de Una & A. D. Brescovit Brazil -15.331667 Reserva Biologica de Una 21 -39.060555 16 285 IBSP 991, IBSP 992, IBSP 1001, IBSP 1003, IBSP 995 38 16 22 BAHIA 1437069680 MNRJ G. Pereira Brazil -15.326388 Ribeirao do Engano 21 -39.084167 16 285 MNRJ 11954 1 1 BAHIA 1437069686 1998-04-08 1998-04-10 1998-04-08 IBSP Reserva Natural da Serra de Teimoso & A. D. Brescovit Brazil -15.322223 Jussari 21 -39.828056 16 285 IBSP 600 1 1 BAHIA 1437069597 MZSP E. Garbe Brazil -15.322223 Itabuna 21 -39.473335 16 285 MZSP 927 1 1 BAHIA