Revision of the genus Ommatoiulus Latzel, 1884 (Julida, Diplopoda) in Portugal, with description of six new species Author Nesrine Akkari Author Henrik Enghoff text European Journal of Taxonomy 2017 295 1 42 journal article 36309 10.5852/ejt.2017.295 05d91344-43e4-4af4-9122-a850bc02b291 2118-9773 376203 urn:lsid:zoobank.org:pub:5862FED7-135E-4648-93D4-46EEC294997A Identification Key to the Portuguese species of Ommatoiulus based on gonopod structures 1. Paracoxite deeply divided into 2 processes ( Fig. 15 D) ........................ O. lusitanus ( Verhoeff, 1895 ) – Paracoxite not divided ...................................................................................................................... 2 2. Mesomerite reduced, almost half as long as the promerite ( Figs 2 C, D, 9D, 19B)........................... 3 – Mesomerite normal to large – sometimes extending beyond the rest of processes ( Figs 7 A, 13A). 5 3. Coxa or paracoxite with strong serrations ( Figs 2 D, 9D); promerite distally narrowed in a rounded apex; solenomerite with hyaline lamella ( Figs 2 E, C, 10)................................................................. 4 – Coxa and paracoxite with no conspicuous serrations; promerite uniformly broad; solenomerite without hyaline lamella ( Fig. 18 )...................................................................... O. staglae sp. nov. 4. Paracoxite distally expanded, leaf-shaped, and bearing strong serrations on the lateral margin ( Figs 9 D, F, 10B); coxa smooth and rounded; solenomerite with one accessory process .................. ....................................................................................................................... O. denticulatus sp. nov. – Paracoxite distally narrowing, apically with a bulge followed by a pointed tip ( Figs 2 C, E, 3B), without serrations; coxa ‘swan wing-shaped’ with 3 blunt processes ( Figs 2 C–D, 3C); solenomerite with 2 accessory processes ( Fig. 3 C)................................................................... O. alacygni sp. nov. 5. Mesomerite shorter than promerite (e.g., Fig. 18 D); solenomerite with a broad lamella bearing notches and distal ramifications (e.g., Fig. 18 B) ............................................................................... 6 – Mesomerite as long as the promerite, sometimes extending beyond the rest of processes (e.g., Figs 13 A, 24A), solenomerite different, large species....................................................................... 8 6. Promerite with two postero-apical teeth, solenomerite with 3 notches and 4 slender to acuminate ramifications ( Fig. 23 B), mesomerite distally expanded mesolaterad ( Fig. 23 D)............................... .............................................................................................................................. O. stellaris sp. nov. – Promerite with one or no apical teeth, solenomerite with one notch and one distal ramification, mesomerite uniformly broad, distally narrowing and curved ( Figs 4 C, 18B)................................... 7 7. Promerite with a strong apical tooth, solenomerite long and broad, distally narrower, with a subapical curved acuminate process and an apical subtriangular fold ( Fig. 4 C)................................................. ............................................................................................................. O. andalusius ( Attems, 1927 ) – Promerite with no apical teeth ( Fig. 18 D), solenomerite short and broad, with two acuminate asymmetrical processes separated by a lamellar fold ( Fig. 18 B) ............ O. porathi ( Verhoeff, 1893 ) 8. Mesomerite strongly expanded into a large distal plate with spines and serrations, solenomerite simple ( Fig. 24A )...................................................................................... O. martensi Mauriès, 1969 – Mesomerite distally narrowing or bifurcating, solenomerite complex.............................................. 9 9. Solenomerite divided into 3 processes (a large anterior one, a median hyaline fold and an acuminate posterior one); paracoxite broad, distally expanding ( Fig. 5 B–C) .................................................. 10 – Solenomerite more complex, heavily serrated, with a furrow and other accessory branches ( Fig. 8 B); paracoxite slender or completely reduced ( Fig. 8 C)........................................................................ 12 10. Mesomerite with apical projections, paracoxite expanded, with several distal projections ............11 – Mesomerite without apical projections ( Fig. 14 A), paracoxite hammer-shaped ( Fig. 14 B) ............... ............................................................................................................................... O. litoralis sp. nov. 11. Promerite with an apical incision and a protruding mesal margin; paracoxite strongly curved ......... ............................................................................................ O. bipartitus ( Verhoeff, 1925 ) ( Fig. 24 B) – Promerite with a regular margin and no apical incision .......... O. moreleti (Lucas, 1860) ( Fig. 24 C) 12. Mesomerite distally not bifurcated; paracoxite long slender and curved ( Fig. 24 E) .......................... .............................................................................................................. O. fuentei ( Brolemann, 1920 ) – Mesomerite distally bifurcated; paracoxite short to very reduced ( Figs 7 D, 17B, 24D) ................ 13 13. Promerite strongly narrowed distally ( Figs 7 B, 8A), apex with a serrated mesal fold and a pointed lateral margin; mesomerite curved from basis and pointing mesad, both apical processes pointing in the same direction ( Figs 7 A, D, 8B).................................................................... O. camurus sp. nov. – Promerite gently narrowed distally, apex with regular margins ( Figs 17 A, C, 24D); mesomerite curved from distal third, mainly pointing laterad ( Figs 17 B, D, 24D) ............................................ 14 14. Paracoxiteveryreducedwithtransversalstripes,mesomeritedistallywithalongcurvedprocesspointing laterad and a much shorter one pointing posteriad ( Fig. 24 D) ...... O. dorsovittatus ( Verhoeff, 1893 ) – Paracoxite longer, mesomerite apically with subequal ramifications oppositely directed ( Fig. 17 B, D) .......................................................................................................... O. oliveirae ( Verhoeff, 1893 )