Sandalodesmus jureia Figueiredo & Bouzan, 2025

Figueiredo, Thiago D., Iniesta, Luiz F. M., Brescovit, Antonio D. & Bouzan, Rodrigo S., 2025, Three new species of Sandalodesmus Silvestri, 1902 from the last intact stretches of Atlantic Forest in Brazil (Polydesmida: Chelodesmidae: Sandalodesmini), Zootaxa 5723 (4), pp. 514-532 : 522-527

publication ID	https://doi.org/10.11646/zootaxa.5723.4.3
publication LSID	lsid:zoobank.org:pub:BE5B3CF0-DDFB-4293-8BFC-A5F133C99A27
DOI	https://doi.org/10.5281/zenodo.17894340
persistent identifier	https://treatment.plazi.org/id/7C03879D-FF87-B349-358C-FB4DFD21E2A4
treatment provided by	Plazi
scientific name	Sandalodesmus jureia Figueiredo & Bouzan
status	sp. nov.

Treatment

Sandalodesmus jureia Figueiredo & Bouzan , sp. nov.

Figs 1 View FIGURE 1 , 7–10 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10

Diagnosis. Males of Sandalodesmus jureia sp. nov. differ from other Sandalodesmus by the following combination of gonopodal characters: prefemoral process ( pfp) trifid ( Figs 9A View FIGURE 9 , 10A, C View FIGURE 10 ) vs. bifid or unbranched in the other species. Ectal projection ( epfp) twists toward the acropodite and ends in a sharp, dorsally pointing tip ( Figs 9A View FIGURE 9 , 10A, C View FIGURE 10 ), while the mesal projection ( mpfp) twists away from the acropodite and has a rounded apex ( Figs 9B View FIGURE 9 , 10B, D View FIGURE 10 ). Acropodite process ( ap), in ectal view, with a small laminar process ( alp) with three main spines ( Figs 9A, C View FIGURE 9 , 10A, C View FIGURE 10 ) vs. absent. Solenomere ( s) exceeds the length of the acropodite process, with its tip directed mesally ( Figs 9A, B View FIGURE 9 , 10 View FIGURE 10 ), as in the stramineus species group.

Etymology. The specific epithet jureia refers to a folkloric character from the indigenous Tupiniquim people of Brazil, representing a woman of remarkable beauty and the lover of “ Peroibe ”. Noun in apposition.

Material examined.

Type material: Holotype: BRAZIL ● ♂; Estação Ecológica Juréia-Itatins ( -24.3571, -47.0136), Peruíbe, São Paulo, Brazil; xii.1998; A. D. Brescovit leg.; IBSP 1300 View Materials GoogleMaps . Paratype: BRAZIL ● ♂; Cachoeira do Guilherme, Estação Ecológica Juréia-Itatins ( -24.3571, -47.0136), Peruíbe, São Paulo, Brazil; i.1994; A. Eterovic leg.; IBSP 1127 View Materials GoogleMaps .

Description. Male ( Holotype, IBSP 1300). Coloration (preserved in 70% ethanol): head and antennae reddish yellow; body entirely reddish brown, some body rings slightly darkened ( Fig. 7A–C View FIGURE 7 ). Paranota tip slightly yellowish ( Fig. 7B View FIGURE 7 ). Legs and sternites yellowish ( Fig. 7E–F View FIGURE 7 ). Telson reddish, lighter towards tip ( Fig. 7C View FIGURE 7 ). Antennae: covered in thin setae; 5th, 6th and 7th antennomeres with small clusters of basiconic sensilla distally on external margin. Gnathochilarium: small setae uniformly distributed on all plates ( Fig. 8C View FIGURE 8 ). Body rings: cuticle smooth, flat. Paranota well projected laterally, slightly downward ( Fig. 7A–C View FIGURE 7 ); anterior margin rounded, posterior margin subtriangular ( Fig. 7A–C View FIGURE 7 ). Ozopore ( oz) arrangement typical for Polydesmida (5, 7, 9, 10, 12, 13, 15–19); surrounded by peritremata ( Fig. 7B View FIGURE 7 ), located dorsally in posterior region. Sternites: body ring 4 with a pair of flat projections; body ring 5 with one pair of small bumps ( Fig. 8B View FIGURE 8 ), between the anterior legs; generally symmetrical, reduced; body ring 6 and 7 without depressions or projections. Gonopod aperture oval, unmodified ( Fig. 8E View FIGURE 8 ); body rings 8–19 with two pairs of small projections, near each coxae. Legs ( Fig. 8A, D View FIGURE 8 ): gonopores opening as longitudinal slits, on concave area at apex of subrectangular gonapophyses. Coxae of walking legs with one long ventral seta. Leg modifications greatly reduced ( vs. other species described herein), except for tibial sole on legs of rings 2–6. Leg modification patterns (ring numbers): prefemoral knob (2–10> 11–14; absent on 15–18); tibial sole (2–6> 7> 8–9> 10–11; absent on 12–18); presence and degree of development of lateral projections dorsal to the stigma are as follows: 2–7 <8–13 <nearly absent from 14–20. Telson : without modifications; hypoproct with a posterior marginal projection and two (1+1) lateral marginal setae ( Fig. 8F View FIGURE 8 ).

Gonopods ( Figs9 View FIGURE 9 , 10 View FIGURE 10 ):Gonocoxite ( gcx) approximately same size as telopodite; relatively uniform circumference along entire length ( Fig. 9A View FIGURE 9 ). Anterior margin with transverse striations, in ectal view; spiniform process small ( gsp) ( Fig. 10C–D View FIGURE 10 ). Cannula ( c) without prominent projections. Prefemoral region ( pfr) short, approximately one-third length of telopodite ( Fig. 10D View FIGURE 10 ). Prefemoral process ( pfp) trifid, subspatulate, subparallel to acropodite; reaching mid-length of acropodite ( Fig. 10D View FIGURE 10 ). Ectal projection ( epfp) twisted toward acropodite, apex sharp, dorsally directed ( Figs 9A View FIGURE 9 , 10A, C View FIGURE 10 ); mesal projection ( mpfp) twisted away from acropodite, apex rounded ( Figs 9B View FIGURE 9 , 10B, D View FIGURE 10 ). Acropodite process ( ap), in ectal view, with a small laminar process ( alp) with three main spines and a fourth secondary spine branching from median one ( Figs 9A–B View FIGURE 9 , 10A, C View FIGURE 10 ); ventral margin with conspicuous longitudinal striations ( Fig. 9A, D View FIGURE 9 ). Acropodite region without incisions near spermatic groove. Solenomere ( s) slightly longer than acropodite process; tip directed upward and toward the mesal side ( Fig. 9A–B View FIGURE 9 ).

Measurements (in mm): Body: total length 42.2, width of 10 th body ring 6.2. Antennomere lengths (1−7): 0.7; 1.3; 1.1; 1.2; 1.3; 1.3; 0.2. Podomere lengths of 6 th leg (1−7): 0.8; 1.2; 2.2; 0.8; 0.9; 1.4; tarsal claw 0.3. Telson length 1.1. Gonopod aperture: length 0.8, width 1.7. Gonopod: length 1.5, width 1.7. Gonocoxite: length 1.1, width 0.6. Telopodite: length 1.4, width 0.5.

Female. Unknown.

Species group. Sandalodesmus jureia sp. nov. is assigned to the stramineus species group based on the following shared characters: solenomere longer than acropodite process and with a posterior extension (=subterminal lobe; Hoffman, 1967) on mesal side ( Figs 9 View FIGURE 9 A−B, 10).