A reassessment of the Neotropical genus Pseudonannolene Silvestri, 1895: cladistic analysis, biogeography, and taxonomic review (Spirostreptida: Pseudonannolenidae) Author Iniesta, Luiz Felipe Moretti DEEF048E-97FB-4CCD-875F-5FA6184CA8AB&14A15A7F-730F-4D41-BDAC-D53514FAB85D Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil. & Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com Author Bouzan, Rodrigo Salvador DEEF048E-97FB-4CCD-875F-5FA6184CA8AB&14A15A7F-730F-4D41-BDAC-D53514FAB85D Pós-graduação em Zoologia, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil. & Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com Author Brescovit, Antonio Domingos 14A15A7F-730F-4D41-BDAC-D53514FAB85D&D5B81D79-AFAE-47B1-8A6E-DAB448A24BCC Laboratório de Coleções Zoológicas, Instituto Butantan, Avenida Vital Brasil, 1500, 05503 - 090, São Paulo, Brazil. rodrigobouzan@outlook.com&antonio.brescovit@butantan.gov.br text European Journal of Taxonomy 2023 2023-04-27 867 1 1 312 http://dx.doi.org/10.5852/ejt.2023.867.2109 journal article 57602 10.5852/ejt.2023.867.2109 1d2570da-e150-4d75-94d8-bfc5813062bc 2118-9773 7891021 8DEF295C-A8B1-4A6B-B873-B30949F64E07 Pseudonannolene inops Brölemann, 1929 stat. nov. Figs 74–75 , 163I , 165L , 169B , 177L , 183 , 218B Pseudonannolene bovei inops Brölemann, 1929: 9 , figs 8–18. Pseudonannolene bovei inops – Mauriès 1987: 177 ( lectotype and paralectotypes designations). — Jeekel 2004: 88 . Diagnosis Males of P. inops resemble those of P. anapophysis , P. bovei , and P. xavieri by having a solenomere with an elongated ectal process directed horizontally ( Figs 75D–F , 218B ), but differing by having a S-shaped internal branch swollen apically ( Fig. 75D ). Etymology Named after the Latin adjective ‘ inops ’ = ‘weak’, ‘helpless’, ‘lacking’. Unspecified in the original description. Material examined (total: 17 ♂♂ , 7 ♀♀ , 1 immature ) BRAZIL – Rio Grande do Sul • 1 ♂ ; Maquiné , Fepagro ; [-29.65, -50.2]; 22 m a.s.l. ; Jan. 2002 ; Equipe Biota leg.; IBSP 2505 • 1 ♂ , 1 immature ; same collection data as for preceding; IBSP 2542 • 3 ♂♂ ; same collection data as for preceding; IBSP 2550 • 7 ♂♂ , 5 ♀♀ ; same collection data as for preceding; IBSP 2488 • 1 ♀ ; same collection data as for preceding; IBSP 2544 • 2 ♂♂ ; same collection data as for preceding; IBSP 2559 • 3 ♂♂ , 1 ♀ ; same collection data as for preceding; IBSP 2533 . Descriptive notes MEASUREMENTS . 61–62 body rings (1 apodous + telson). Males: body length 55 mm ; maximum midbody diameter 2.5 mm . Females: body length 55–60 mm ; maximum midbody diameter 3–3.5 mm . COLOR . Body color brownish grey; head, collum, antennae and legs darker; prozonites greyish anteriorly; metazonites with a brown medial band and a lighter posterior band. HEAD . Antennae long ( Fig. 163I ), just reaching back to end of ring 6 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2<3>4≈5≈6>7. Mandibular cardo with ventral margin swollen. Ommatidial cluster well-developed, covered partially by anterior region of collum, elliptical; ca 25 ommatidia in 4 rows. BODY RINGS . Collum with lateral lobes broadly rounded, with ca 6 striae, slightly curved ectad ( Fig. 74A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae below ozopore. Anterior sterna in midbody rings subrectangular, without transverse striae ( Fig. 169B ). FIRST LEG-PAIR OF MALES . Coxae ( cx ) short (less than half of remaining podomere lengths), subtriangular, with the base arched and slightly expanded, densely setose ( Fig. 75A ); prefemoral process ( prf ) as long as half of prefemur, subcylindrical, densely setose along the entire ventral region ( Fig. 75B ); remaining podomeres with setae along the mesal region. SECOND LEG-PAIR OF MALES . Coxa ( cx ) large and subrectangular; penis ( pn ) located at proximal region, rounded, not extended basally ( Fig. 75C ); prefemur compressed dorsoventrally; remaining podomeres setose. GONOPODS . Gonocoxa ( gcx ) elongated, almost twice as long as telopodite, with the base slightly arched; antero-posteriorly flattened ( Fig. 75D–F ); with rows of papillae mesally. Seminal groove ( sg ) curved; arising medially on mesal cavity and terminating apically on the seminal apophysis ( sa ); thickened basally and protruded on squamous region of sl ( Fig. 75E ). Shoulder ( sh ) inconspicuous. Telopodite ( tp ) as wide as half of gcx ( Fig. 75D ); solenomere ( sl ) with apicomesal process ( amp ) short; ectal process ( ep ) subtriangular, elongated and perpendicular to amp ; sa located at mesal portion, visible apically. Internal branch ( ib ) swollen, curved apically, S-shaped, and enfolding sl in anal view; ib with setae along its entire margin not exceeding apically seminal region of sl ( Fig. 75D–F ). VULVAE . As typical for the genus. Bursa subtriangular, glabrous ( Fig. 177L ); internal valve subtriangular, with mesal region rounded; operculum large, curved ectad; external valve wide, subtriangular. Distribution The species occurs in the Atlantic Forest from Rio Grande do Sul up to Santa Catarina State , Brazil ( Fig. 183 ). Comments Although the examination of the lectotype and paralectotypes ( two males and two females ) deposited at the Muséum national d’histoire naturelle, Paris, France (MNHN), was not possible during this study, the original description and drawings provided by Brölemann (1929) are highly detailed.