Sandalodesmus Silvestri 1902
Creators: name: Rojas-Buffet, Carolina
name: Bouzan, Rodrigo Salvador
name: Sierwald, Petra
name: Brescovit, Antonio Do- Mingos
name: Simó, Miguel
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplopoda
Polydesmida
Chelodesmidae
Sandalodesmus

description: Key to males of Sandalodesmus (based on gonopod structures)
1 Acropodite process with a prominent, subtriangular secondary process on the lateral side............................ 2
- Acropodite process without a secondary process............................................................ 3
2 (1) Acropodite process rounded, curved mesad (see Schubart 1946, fig. 4)..................... S. araujoi (Schubart, 1946)
- Acropodite process subtriangular, projected up (see Silvestri 1895, fig. 3; Hoffman 1982, figs 1, 2)................................................................................................. S. salvadorii (Silvestri, 1895)
3 (1) Prefemur short, less than half of the total length of telopodite, not extending distad beyond base of the prefemoral process.. 4
- Prefemur longer, more than half of the total length of telopodite, extending distad to about midlength of prefemoral process.. ................................................................................................... 9
4 (3) Acropodite short, scarcely longer than prefemoral process, its distal edge exceeded by solenomere (see Schubart 1954a, fig. 16) …......................................................................... S. camellatus (Schubart, 1954)
- Acropodite long, forming a concave shield that contains the solenomere......................................... 5
5 (4) Prefemoral process shorter than acropodite................................................................. 6
- Prefemoral process as long as acropodite, apically broad and rounded in mesal aspect, without a basal lobe; acropodite with a prominent spiculate lobe on the lateral side (see Schubart 1958, fig. 4).................... S. repandus (Schubart, 1958)
6 (5) Nontorsate prefemoral process.......................................................................... 7
- Torsate prefemoral process............................................................................. 8
7 (6) Solenomere massive and apically reflexed (see Hoffman 1982, fig. 5)...................... S. avilectus Hoffman, 1982
- Solenomere not massive (see Schubart 1954b, fig. 14)............................... S. iguazuensis (Schubart, 1954)
8 (6) Prefemoral process large, concave, excavated to accommodate the acropodite (see Hoffman 1982, figs 3, 4)............................................................................................ S. librellus Hoffman, 1982
- Prefemoral process small, Z-shaped (Figs 3A, 4A).............................. Sandalodesmus joachimadisi n. sp.
9 (3) Acropodite with a prominent laminate deltoid lobe on the mesal side; prefemoral process straight.................... 10
- Acropodite with a lobe on the mesal side; prefemoral process rotated 180° so that the distal half is on the opposite side from the basal half.......................................................................................... 11
10 (9) Mesal deltoid lobe of acropodite placed apically and concealing solenomere, latter extending beyond end of acropodite (see Schubart 1956, fig. 3)......................................................... S. stramineus (Schubart, 1956)
- Mesal deltoid lobe of acropodite placed subapically, solenomere entirely visible and extending beyond end of acropodite (see Hoffman 1967, figs 3, 4; Hoffman 1982, fig. 11)..................................... S. schubarti (Hoffman, 1967)
11 (9) Outer edge of solenomere entire, smooth (see Schubart 1944, fig. 22).................... S. gasparae (Schubart, 1944)
- Outer edge of solenomere denticulate..................................................................… 12
12 (11) Solenomere elongate, the seminal groove sinuately curved (see Schubart 1944, figs 25, 26).................................................................................................... S. hippocampus (Schubart, 1944)
- Solenomere short, the seminal groove arcuately curved (see Schubart 1954a, fig. 14)...... S. paranaensis (Schubart, 1954)
description: Published as part of Rojas-Buffet, Carolina, Bouzan, Rodrigo Salvador, Sierwald, Petra, Brescovit, Antonio Do- Mingos & Simó, Miguel, 2022, Sandalodesmus joachimadisi n. sp., the first Chelodesmidae member from Uruguay with an updated key to species of the genus (Diplopoda: Polydesmida), pp. 260-268 in Zootaxa 5150 (2) on page 266, DOI: 10.11646/zootaxa.5150.2.5, http://zenodo.org/record/6621301