Pseudonannolene xavieri Iniesta & Ferreira, 2014

Iniesta, Luiz Felipe Moretti, Bouzan, Rodrigo Salvador & Brescovit, Antonio Domingos, 2023, A reassessment of the Neotropical genus Pseudonannolene Silvestri, 1895: cladistic analysis, biogeography, and taxonomic review (Spirostreptida: Pseudonannolenidae), European Journal of Taxonomy 867 (1), pp. 1-312 : 98-99

Pseudonannolene xavieri Iniesta & Ferreira, 2014

Figs 143–144 , 166Q , 174A , 179E , 189

Pseudonannolene xavieri Iniesta & Ferreira, 2014: 373 , figs 9, 14f.

Pseudonannolene xavieri – Gallo & Bichuette 2019: 48.

Diagnosis

Males of P. xavieri resemble those of P. anapophysis , P. bovei , and P. inops by having solenomere with elongated ectal process directed horizontally ( Fig. 144D ), but differing by having the telopodite larger than half of gonocoxa in width; subtriangular internal branch ( Fig. 144D–F ).

Etymology

Patronym honoring the Brazilian biospeleologist Xavier Prous ( Iniesta & Ferreira 2014).

Material examined

Holotype BRAZIL • ♂; Bahia, Iraquara, Fumaça cave ; [-12.33169, -41.59664]; 723 m a.s.l.; 7 Jan. 2001; R.L. Ferreira et al. leg.; ISLA 4105 .

Other material (total: 1 ♂, 2 ♀♀)

BRAZIL – Bahia • 2 ♀♀; same collection data as for holotype; 2014; ISLA 20618 • 1 ♂; Lapa Doce; 11 Nov. 2002; A. Giupponi and R. Baptista leg.; MNRJ 30148 .

Descriptive notes

MEASUREMENTS. 60–61 body rings (1 apodous + telson). Males: body length 44 mm; maximum midbody diameter 3.3 mm. Females: body length 46 mm; maximum midbody diameter 3.4 mm.

COLOR. Body color brownish grey; head, collum, antennae little darker; prozonites anteriorly greyish; metazonites with a posterior band lighter; legs brownish.

HEAD. Antennae short ( Fig. 143A ), just reaching back to end of ring 5 when extended dorsally; antennomeres elongated; relative antennomere lengths 1<2<3>4>5<6>7. Mandibular cardo with ventral margin narrow. Ommatidial cluster well-developed, elliptical; ca 26 ommatidia in 5 rows.

BODY RINGS. Collum with lateral lobes rounded, with ca 4 shallow striae ( Fig. 143A ). Very faintly constricted between prozonite and metazonite; prozonites smooth; metazonites laterally with transverse striae slightly above ozopore in anterior body rings. Anterior sterna in midbody rings subrectangular, with 7 transverse striae ( Fig. 174A ).

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. 144A ); prefemoral process (prf) about as wide as half of prefemur, subcylindrical, densely setose up to its median region ( Fig. 144B ); remaining podomeres with setae along the mesal region.

SECOND LEG-PAIR OF MALES. Coxa (cx) large and rounded; penis (pn) located at proximal region, circle-shaped ( Fig. 144C ); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) elongated, subrectangular, with the base slightly arched; antero-posteriorly flattened ( Fig. 144D–F ); with rows of papillae mesally. Seminal groove (sg) curved; arising medially on mesal cavity and terminating apically on the seminal apophysis (sa). Shoulder (sh) subtriangular. Telopodite (tp) as wide as half of gcx ( Fig. 144D ); solenomere (sl) with apicomesal process (amp) short; ectal process (ep) subtriangular, elongated and perpendicular to amp; sa located at mesal portion, elongated, visible apically. Internal branch (ib) subtriangular, narrow, surrounding basally tp as a shield; ib with setae along its entire margin exceeding apically seminal region of sl ( Fig. 144D–F ).

VULVAE. As typical for the genus. Bursa subtriangular, glabrous ( Fig. 179E ); internal valve subtriangular; operculum slightly curved ectad; external valve subtriangular.

Distribution

Known only from Iraquara, Bahia State, Brazil ( Fig. 189 ).

Figures

Fig. 143. Pseudonannolene xavieri Iniesta & Ferreira, 2014, ♂ (MNRJ 30148), in lateral view. A. Anterior region. B. Posterior region. Scale bars = 0.2 mm.

Fig. 144. Pseudonannolene xavieri Iniesta & Ferreira, 2014, ♂ (MNRJ 30148). A. First leg-pair. B. Detail of prefemur. C. Second leg-pair. D. Detail of telopodites, in anal view. E. Gonopods, in anal view. F. Gonopods, in oral view. Abbreviations: see Material and methods. Scale bars = 0.2 mm.

Fig. 166. Stereoscopic images of midbody legs of species of Pseudonannolene Silvestri, 1895. A. P. mesai Fontanetti, 2000. B. P. microzoporus Mauriès, 1987. C. P. ophiiulus. D. P. parvula Silvestri, 1902. E. P. patagonica Brölemann, 1902. F. P. paulista Brölemann, 1902. G. P. robsoni Iniesta & Ferreira, 2014. H. P. rolamossa Iniesta & Ferreira, 2013. I. P. rugosetta Silvestri, 1897. J. P. silvestris Schubart, 1944. K. P. spelaea Iniesta & Ferreira, 2013. L. P. strinatii Mauriès, 1974. M. P. tocaiensis Fontanetti, 1996. N. P. tricolor Brölemann, 1902. O, P. typica Silvestri, 1895. P. P. urbica Schubart, 1945. Q. P. xavieri Iniesta & Ferreira, 2014. R. P. insularis sp. nov. Images not to scale.

Fig. 174. Stereoscopic images of gnathochilarium and anterior sternum of species of Pseudonannolene Silvestri, 1895. A. P. xavieri Iniesta & Ferreira, 2014. B. P. bucculenta sp. nov. C. P. morettii sp. nov. D. P. insularis sp. nov. E. P. nicolau sp. nov. Images not to scale.

Fig. 179. Stereoscopic images of left vulva of species of Pseudonannolene Silvestri, 1895, in oral view. A. P. strinatii Mauriès, 1974. B. P. tocaiensis Fontanetti, 1996. C. P. tricolor Brölemann, 1902. D. P. typica Silvestri, 1895. E. P. xavieri Iniesta & Ferreira, 2014. F. P. bucculenta sp. nov. G. P. morettii sp. nov. H. P. insularis sp. nov. I. P. nicolau sp. nov. J. P. granulata sp. nov. K. P. alata sp. nov. L. P. curvata sp. nov. M. P. aurea sp. nov. Images not to scale.

Fig. 189. Distribution map of the species Pseudonannolene tocaiensis Fontanetti, 1996, P. tricolor Brölemann, 1902, P. typica Silvestri, 1895, P. urbica Schubart, 1945, and P. xavieri Iniesta & Ferreira, 2014.