Gabunillo aridicola Souzaı Senna and Kuryı 2010

Camile Sorbo Fernandes, Ivanklin Soares Campos-Filho, Paula Beatriz Araujo & Bichuette, Maria Elina, 2019, Synopsis of terrestrial isopods (Crustacea: Isopoda: Oniscidea) from Brazilian cavesı with emphasis on new records from northı midwestı northeast and southeast regions, Journal of Natural History 53 (17), pp. 1095-1129 : 1119

Gabunillo aridicola Souzaı Senna and Kuryı 2010

Distribution

Gruta do Sobradinho caveı Aiuabaı state of Cearáı and Lajedo da Soledadeı Apodiı state of Rio Grande do Norte ( Souza et al. 2010).

Remarks

Souza et al. (2010) described the second species of the genus Gabunillo , G. aridicolla Souzaı Senna and Kuryı 2010 ı with specimens collected in the Brazilian states of Ceará and Rio Grande do Norte. The species was included in the genus Gabunillo based on the shape of cephalonı pereonites 2 and 3 without ventral lobesı telson trianguları shape of uropods and pleopod exopods without pleopodal lungs (see also Schmalfuss and Ferrara 1983). The authors mentioned that the uropod of G. aridicola resembles the genera synarmadillo Dollfusı 1892ı Ethelumoris Richardsonı 1907 and Togarmadillo Schmalfuss and Ferraraı 1983 (see also Ferrara and Schmalfuss 1976; Schmalfuss and Ferrara 1983). Howeverı comparing the description of G. coecus and mentioned genera with G. aridicola ı it is possible to observe some differences: the uropod protopod with concave depression bearing glandular pores and distal margin rounded (vs. absent and indented in G. coecus ; present in species of synarmadillo)ı and uropod exopod is inserted on median portion of the protopod (vs. exopod inserted near distal margin in G. coecus and all genera). Moreoverı on SEM photographs of the pleopod exopods of G. aridicola ı it seems to have covered monospiracular pleopodal lungs (see Figure 3C and E in Souza et al. 2010). Future morphological analyses are needed to elucidate if the pleopod exopods of G. aridicola have pleopodal lungs and confirm its taxonomic statement. Thus farı G. aridicola differs from all mentioned taxa in having the cephalon with frontal shield fused with vertex (vs. frontal shield well marked in all mentioned generaı except G. coecus )ı posterior corner of the pereonite 1 epimera with short schisma (vs. schisma along all epimera in Ethelumoris and synarmadillo; half of its pereonite length in Togarmadillo )ı and pereonite 2 and 3 epimera wihout ventral lobe (vs. ventral lobe in Ethelumoris and synarmadillo) (see Ferrara and Taiti 1976; Schmalfuss and Ferrara 1983; Souza et al. 2010). Thusı in the light of the above considerationsı we recommend a re-examination of the type-material to confirm or not the placement of the species in the genus Gabunillo .

Figures

Figure 3. Distribution of the new records of Isopods from the North, Midwest, Southwest and Northeast Regions. 1. Altamira (Pará); 2. São Domingos (Goiás); 3. São Desidério (Bahia); 4. Serra do Ramalho (Bahia); 5. Chapada Diamantina (Bahia); 6. Matozinhos (Minas Gerais).