Pseudonannolene patagonica * Brolemann 1902
Creators: name: Iniesta, Luiz Felipe Moretti
name: Bouzan, Rodrigo Salvador
name: Brescovit, Antonio Domingos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Spirostreptida
Pseudonannolenidae
Pseudonannolene
Pseudonannolene patagonica

description: Pseudonannolene patagonica Brölemann, 1902
Figs 106–108, 164F, 166E, 186
Pseudonannolene patagonica Brölemann, 1902a: 135, pl. vii figs 160–165.
Pseudonannolene patagonica – Jeekel 2004: 90.
Diagnosis
Males of P. patagonica resemble those of P. halophila, P. maritima, P. sebastianus, and P. insularis sp. nov. by having large and subrectangular coxae on the first leg-pair (Fig. 107A) and a suboval penis (Fig. 107C–D), but differing by having the stipes of gnathochilarium swollen distally (Fig. 108C).
Etymology
Although unspecified, the name is evidently an adjective referring to the locality where the type material was found, Carmen de Patagones.
Material examined
Holotype ARGENTINA • ♂ [gonopods missing]; Buenos Aires, Carmen de Patagones; [-40.783233, -62.982821]; R. von Ihering leg.; MZSP 242.
Descriptive notes
Gonopod description adapted from Brölemann (1902a: 135) to supplement original description and to introduce gonopod terminology; remaining male sexual characters described based on examined holotype.
MEASUREMENTS. 60 body rings (2 apodous + telson). Males: fragmented, body length ca 47 mm; maximum midbody diameter 2.6 mm.
COLOR. Body color faded, but apparently prozonites brownish, metazonites with a posterior brown band; head, collum, and legs lighter brown.
HEAD. Antennae long (Fig. 164F), 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 45 ommatidia in 6 rows.
BODY RINGS. Collum with lateral lobes broadly rounded, with ca 12 striae (Fig. 106A). 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.
FIRST LEG-PAIR OF MALES. Coxae (cx) elongated (as long as the sum of remaining podomere lengths), subrectangular, with the base arched, densely setose (Fig. 107A); prefemoral process (prf) thinner than half the prefemur, subcylindrical, densely setose up to its median region (Fig. 107B); remaining podomeres with setae along the mesal region.
SECOND LEG-PAIR OF MALES. Coxa (cx) large and rounded; penis (pn) located at proximal region, rounded, extended basally (Fig. 107C); prefemur compressed dorsoventrally; remaining podomeres setose.
GONOPODS. Gonocoxa (gcx) subtriangular, short (Fig. 108D); with rows of papillae mesally. Seminal groove (sg) not visible on mesal cavity. Shoulder (sh) rounded. Telopodite (tp) large, but not as wide as gcx; solenomere (sl) with apicomesal process (amp) rounded; ectal process absent; sa located at mesal portion, slightly visible apically. Internal branch (ib) short, subtriangular, with horizontal plate; setae apparently starting at midlength of ib exceeding seminal region of sl (Fig. 108D).
Distribution
Known only from the type locality Carmen de Patagones, Buenos Aires, Argentina (Fig. 186).
description: Published as part of 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), pp. 1-312 in European Journal of Taxonomy 867 (1) on pages 69-70, DOI: 10.5852/ejt.2023.867.2109, http://zenodo.org/record/7891021