Atlantodesmus pintoi ( Schubart, 1946 )

Bouzan, Rodrigo Salvador, Pena-Barbosa, João Paulo P. & Brescovit, Antonio Domingos, 2017, Taxonomic review of the genus Atlantodesmus Hoffman, 2000 (Polydesmida: Chelodesmidae), Zootaxa 4236 (2), pp. 269-290 : 283-286

publication ID

https://doi.org/10.11646/zootaxa.4236.2.3

publication LSID

lsid:zoobank.org:pub:8A62CD73-AE84-47D1-8E31-9FD256086BF1

DOI

https://doi.org/10.5281/zenodo.6002134

persistent identifier

https://treatment.plazi.org/id/2B5A8354-FF87-EB35-FF57-6F8C27D2FE38

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scientific name

Atlantodesmus pintoi ( Schubart, 1946 )
status

 

Atlantodesmus pintoi ( Schubart, 1946) View in CoL

Figures 5 View FIGURE 5 ĀC, 13–15, 19

Leptodesmus pintoi Schubart, 1946: 166 View in CoL , fig. 2 (Male holotype from Ilhéus (39°04’63’’W, 14°79’35’’S), Bahia, Brazil, 1919, E. Garbe leg., deposited in MZSP 412 View Materials , examined). GoogleMaps

Leptodesmus pintoi: Schubart, 1956: 421 View in CoL .

Atlantodesmus pintoi: Hoffman, 2000: 106 View in CoL .

Additional material examined. BRAZIL. BAHIA: Ilhéus (39°04’63’’W, 14°79’35’’S), 5♀, 1919, E. Garbe col. ( MZSP 929 View Materials , MZSP 930 View Materials , MZSP 931 View Materials , MZSP 932 View Materials ) GoogleMaps . Reserva Biológica de Una (39°02’98’’W, 15°19’54’’S), 22♂ 16♀, XI/2001, A.D. Brescovit col. ( IBSP 991 View Materials , IBSP 992 View Materials , IBSP 1001 View Materials , IBSP 1003 View Materials , IBSP 995 View Materials ) GoogleMaps ; 1♂ 2♀, 13–16/IV/ 1998, A.D. Brescovit et al. col. (IBSP 581, IBSP 584). Ribeirão do Engano (39°04’63’’W, 14°79’35’’S), 1♂, 1945, G. Pereira col. ( MNRJ 11954 View Materials ) GoogleMaps . Jussari , Reserva Natural da Serra de Teimoso (39°49’41’’W, 15°18’80’’S), 1♀, 08– 10/IV/1998, A.D. Brescovit et al. col. ( IBSP 600 View Materials ) GoogleMaps . Itabuna (39°27’84’’W, 14°78’80’’S), 1♂, 1919, E. Garbe col. ( MZSP 927 View Materials ) GoogleMaps .

Diagnosis. Males of Atlantodesmus pintoi differ from all other species of the genus by the acropodite process with a large, rounded spoon-shaped tip ( Figs 13 View FIGURE 13 A–B, 14A–B).

Redescription. Male (Holotype, MZSP 412). Coloration (in alcohol): Head reddish brown. Body brown with a median dorsal white band. Paranota tip white. Legs reddish. Telson white. Total length: 57. Collum 2.09 long, 7.11 wide. Antennomere lengths (1>7): 0.91; 2.40; 2.28; 2.20; 2.20; 1.78; 0.29. Gonopod opening: 1.21 long, 1.78 wide. Telson 1.95. Gonopods: coxae with two bristles in the distal dorsal side. Without coxal apophysis. Prefemoral region ventrally positioned. Prefemoral process long, with narrow stalk about half of total PfP length; apex expanded, calyx-shaped, edge of calyx slightly serrated ( Fig. 13 View FIGURE 13 A). The dorsal side of the prefemoral region with several folds ( Fig. 14 View FIGURE 14 D). Transition from prefemoral region to acropodite discontinuous. Small incision at the external margin of the telopodite is visible in mesal view. Reduced cingulum visible in ectal view ( Fig. 14 View FIGURE 14 C, arrow). Solenomere long and falciform. Acropodite process with a rounded lobe above the base of the solenomere ( Fig. 13 View FIGURE 13 A, arrow), acropodite process terminating in a large flat rounded apex ( Figs 13 View FIGURE 13 A–B).

Female (Paratype, MZSP 929). Coloration (in alcohol) and body as in male. Total length 50. Collum 2.03 long, 6.80 wide. Telson 1.83. Cyphopods ( Figs 15 View FIGURE 15 B–D) with numerous dispersed fine bristles on both valves. The apical part of cyphopod is slightly projected, the intermediate membrane projects between the valves ( Fig. 15 View FIGURE 15 B).

Variation: The body of some specimens can show a whitish yellow coloration, however the median band is present, but weakly developed. In some individuals the apex of the prefemoral process lacks serration.

Distribution. State of Bahia, Brazil, in areas containing the Brazilian Atlantic forest biome ( Por et al. 2005).

Hoffman, R. L. (2000) Two new genera of chelodesmid millipeds from southeastern Brazil (Polydesmida: Chelodesmidae). Myriapodologica, 6, 101 - 113.

Por, F. D., Imperatriz-Fonseca, V. L. & Neto, F. L. (2005) Biomes of Brazil: An illustrated Natural History. Pensoft Publishers, Sofia, pp. 208.

Schubart, O. (1946) Contribuicao ao conhecimento do genero Leptodesmus (Fam. Leptodesmidae, Diplopoda). Anais da Academia Brasileira de Ciencias, 18, 165 - 202.

Gallery Image

FIGURE 5. Dorsal views of anterior (A, D), midbody (B, E) and posterior (C, F) segments of Atlantodesmus pintoi (A – C) and A. teresa (D – F).

Gallery Image

FIGURE 13. Atlantodesmus pintoi (Holotype, MZSP 412), left gonopod. A, mesal view; B, ectal view. Scale bar = 1 mm. A, acropodite process; Cg, cingulum; PfP, prefemoral process; S, solenomere. Arrow refers to lobe present above the base of the solenomere.

Gallery Image

FIGURE 14. Atlantodesmus pintoi. A, left gonopod in mesal view; B, left gonopod in ectal view; C, detail of the reduced cingulum; D, folds in prefemoral region of the gonopod; E, Aperture of gonopod; F, detail of folds in the posterior margin of the aperture of gonopod. A, acropodite process; Cg, cingulum; PfP, prefemoral process; S, solenomere. Arrow refers to cingulum.

Gallery Image

FIGURE 15. Atlantodesmus pintoi. A, lateral projection on the seventh segment; B, cyphopods in lateral view; C, detail of the left cyphopod in lateroventral view; D, detail of the right cyphopod in lateroventral view.

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

IBSP

Instituto Biologico de Sao Paulo

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Polydesmida

Family

Chelodesmidae

SubFamily

Chelodesminae

Genus

Atlantodesmus