The millipedes and centipedes of Chiapas amber Author Riquelme, Francisco Author Hernández-Patricio, Miguel text Check List 2018 2018-08-10 14 4 637 646 http://dx.doi.org/10.15560/14.4.637 journal article 10.15560/14.4.637 1809-127X Polydesmida sp. indet. Referred material . 11 specimens : MALM .301: juvenile ( Fig. 3A, B ), MALM .302: Juvenile ( Fig 3A, B ), MALM .310: adult of indeterminate sex ( Fig. 3A, B ); MALM .311 ( Fig. 3A, B ): Juvenile, MALM .312 ( Fig. 3A, B ): juvenile; CPAL .103: juvenile; CPAL .107: juvenile; CPAL .108: juvenile ( Fig. 3F ), CPAL .113: juvenile; CPAL .106: adult female; MACH .21: adult of indeterminate sex. Riquelme and Hernández-Patricio | Millipedes and centipedes of Chiapas amber 641 Figure 2 . Millipedes from Simojovel, Chiapas, early-mid Miocene. A–C. MALM.18, spirobolid millipede; scale bars, A = 2 mm, B = 0.5 mm, C = 1 mm. D–F. CPAL.109, xystodesmid millipede; scale bars, A = 2 mm, E = 1 mm, F = 0.2 mm. Locality. CPAL .103, CPAL .113, MALM .301, MALM .302, MALM .310, MALM .311, and MALM .312: Mexico , Chiapas : Simojovel: La Pimienta site, 17°08ʹ29ʺ N , 092°45ʹ46ʺ W . CPAL .106 and CPAL .107: Mexico , Chiapas , Simojovel, Guadalupe Victoria site, 17°07ʹ58ʺ N , 092°48ʹ19ʺ W . MACH .21: Mexico , Chiapas : Simojovel: Los Pocitos site, 17°08ʹ18ʺ N , 092°43ʹ41ʺ W . CPAL .108: Mexico , Chiapas : Totolapa: Río Salado site, 16°32ʹ42ʺ N , 092°40ʹ58ʺ W . Identification. Head without eyes, antennae with 7 antennomeres plus 4 sensorial cones, labrum tridentate, body with 12 rings or less in immature specimens: CPAL.103, CPAL.107, CPAL.108, CPAL.113, MAL.M301, MALM. 302, MALM.311, and MALM.312, metazonite with short lateral projections, CPAL.106 with 18 rings, MALM.310 with 20 rings, and MACH.21 with 20 rings, they are adult specimens but badly damaged, so no judgment is made as to their specific taxonomic position. Order Polydesmida Leach, 1895 Suborder Leptodesmidea Brölemann, 1916 Superfamily Xystodesmoidea Cook, 1895 Family Xystodesmidae Cook, 1895