Pseudonannolene curtipes Schubart, 1960

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 : 35-36

Pseudonannolene curtipes Schubart, 1960

Figs 64–65 , 165H , 168A , 182

Pseudonannolene curtipes Schubart, 1960: 78 .

Pseudonannolene curtipes – Jeekel 2004: 89

Diagnosis

Males of P. curtipes resemble those of P. microzoporus , P. caatinga , and P. leopoldoi by having gonopod with subtriangular internal branch, and solenomere with ectal and apicomesal processes ( Fig. 65D ). Pseudonannolene curtipes can be distinguished from those species by having internal branch deeply notched separating from gonocoxa ( Fig. 65D–F ), and a circle-shaped penis ( Fig. 65C ).

Etymology

Named after the Latin adjective ‘ curtus ’ = ‘shortened’, and the masculine noun ‘ pes ’ = ‘foot’. Unspecified in the original description, but likely to be related either with short coxae of the first leg pair of males or the size of midbody legs.

Material examined

Holotype BRAZIL • ♂ [gonopods missing]; Goiás, Sítio d’Abadia, Fazenda Forquilha Grande ; [-14.732396, -46.153622]; Feb. 1960; J. Evangelista leg.; MZSP 1001 .

Paratypes (total: 2 ♂♂, 11 ♀♀) BRAZIL • 1 ♂; same collection data as for holotype; MZSP 1027 • 1 ♂; same collection data as for preceding; MZSP 1029 • 1 ♀; same collection data as for preceding; MZSP 1022 • 1 ♀; same collection data as for preceding; MZSP 1023 • 1 ♀; same collection data as for preceding; MZSP 1024 • 1 ♀; same collection data as for preceding; MZSP 1025 • 1 ♀; same collection data as for preceding; MZSP 1026 • 1 ♀; same collection data as for preceding; MZSP 1028 • 1 ♀; same collection data as for preceding; MZSP 1030 • 1 ♀; same collection data as for preceding; MZSP 1031 • 1 ♀; same collection data as for preceding; MZSP 1032 • 1 ♀; same collection data as for preceding; MZSP 1033 • 1 ♀; same collection data as for preceding; MZSP 1034 .

Descriptive notes

MEASUREMENTS. 61 body rings (2 apodous + telson). Males: body length 52–55 mm; maximum midbody diameter 3–3.5 mm. Females: body length 50–55 mm; maximum midbody diameter 3.3–3.5 mm.

COLOR. Body color brownish grey; head, collum, antennae and legs darker brown; prozonites greyish anteriorly; metazonites with a medial brown band and a posterior reddish band.

HEAD. Antennae long ( Fig. 64A ), 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 narrow. Ommatidial cluster well-developed, elliptical; ca 35 ommatidia in 5 rows.

BODY RINGS. Collum with lateral lobes rounded, with ca 12 striae, slightly curved ectad ( Fig. 64A ). 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, without transverse striae ( Fig. 168A ).

FIRST LEG-PAIR OF MALES. Coxae (cx) short (less than half of remaining podomere lengths), subtriangular, with the base arched, densely setose ( Fig. 65A ); prefemoral process (prf) as wide as half of prefemur, subcylindrical, densely setose up to its median region ( Fig. 65B ); remaining podomeres with setae along the mesal region.

SECOND LEG-PAIR OF MALES. Coxa (cx) broken in paratypes, but large and rounded; penis (pn) located at proximal region, circle-shaped ( Fig. 65C ); prefemur compressed dorsoventrally; remaining podomeres setose.

GONOPODS. Gonocoxa (gcx) elongated, almost twice as long as telopodite, with the base arched; flattened antero-posteriorly ( Fig. 65D–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) almost as wide as gcx ( Fig. 65D ); solenomere (sl) with apicomesal process (amp) subtriangular; ectal process (ep) long, subtriangular, separated from amp by deep notch; sa located at mesal portion, slightly visible apically. Internal branch (ib) subtriangular, narrow, slightly curved ectad at midlength, surrounding base of tp as a shield; separated from gcx after deep constriction mesally; with torsion of 180° in the distal portion and a short, rounded projection, directed ectad; ib with setae along its entire margin slightly exceeding apically seminal region of sl ( Fig. 65D–F ).

VULVAE. Not examined.

Distribution

Known only from the type locality Sítio d’Abadia, Goiás State, Brazil ( Fig. 182 ).

Figures

Fig. 64. Pseudonannolene curtipesSchubart, 1960, paratype. ♀ (MZSP 1022), in lateral view. A.Anterior region. B. Posterior region. Scale bars = 1 mm.

Fig. 65. Pseudonannolene curtipes Schubart, 1960, paratype. ♂ (MZSP 1027). 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: A, E–F = 0.5 mm; B–D = 0.2 mm.

Fig. 165. Stereoscopic images of midbody legs of species of Pseudonannolene Silvestri, 1895. A. P. ambuatinga Iniesta & Ferreira, 2013. B. P. anapophysis Fontanetti, 1996. C. P. alata sp. nov. D. P. bovei Silvestri, 1895. E. P. buhrnheimi Schubart, 1960. F. P. caatinga Iniesta & Ferreira, 2014. G. P. callipyge Brölemann, 1902. H. P. curtipes Schubart, 1960. I. P. fontanettiae Iniesta & Ferreira, 2014. J. P. halophila Schubart, 1949. K. P. imbirensis Fontanetti, 1996. L. P. inops Brölemann, 1929. M, P. leopoldoi Iniesta & Ferreira, 2014. N. P. leucomelas Schubart, 1947. O. P. longicornis (Porat, 1888). P. P. lundi Iniesta & Ferreira, 2015. Q. P. magna Udulutsch & Pietrobon, 2003. R. P. maritima Schubart, 1949. Images not to scale.

Fig. 168. Stereoscopic images of gnathochilarium and anterior sternum of species of Pseudonannolene Silvestri, 1895. A. P. curtipes Schubart, 1960. B. P. erikae Iniesta & Ferreira, 2014. C. P. fontanettiae Iniesta & Ferreira, 2014. D. P. callipyge Brölemann, 1902. E. P. halophila Schubart, 1949. Images not to scale.

Fig. 182. Distribution map of the species Pseudonannolene caulleryi Brölemann, 1929, P. centralis Silvestri, 1902,P. curtipes Schubart, 1960, P. erikae Iniesta & Ferreira, 2014 and P. fontanettiae Iniesta & Ferreira, 2014.