Iansaoniscus georginae Campos-Filho, Araujo & Taiti sp. n. Figs 6, 7, 8

Type locality.

Bahia, Paripiranga, Caverna das Borboletas cave (10°38'12.75"S, 43°51'43.68"W).

Type material.

Holotype male (part in micropreparations) (MZUSP 35114), Bahia, Paripiranga, Borboletas cave, leg. JE Gallão, MP Bolfarini, MJ Rosendo, R Moreira.

Description.

Body length: 5 mm. Body pigmentless, eyes absent. Body outline in lateral view as in Fig. 6A. Dorsum covered with triangular, elongated scale-setae (Fig. 6B). Pereonite 1 epimeron with dorsolateral furrow weakly developed, anterior and posterior corners triangular; pereonite 1 and 2 ventrally with weakly developed lobes (Fig. 6A, E); pereonite 2-7 with subquadrangular epimera. Cephalon as in Fig. 6C, D. Pleonites 3-5 (Fig. 6A, F) with subrectangular epimera directed backwards. Telson (Fig. 6F) almost as wide as long, not surpassing uropod exopods. Antennula (Fig. 6G) with second article bearing thick lateral setae, distal article with 4 lateral aesthetascs plus apical pair. Antenna missing. Mandibles (Fig. 7A, B) with molar penicil with 6-7 branches, left mandible with 2+1 penicils, right with 1+1 penicils. Maxillula (Fig. 7C) inner endite with two penicils, distal margin rounded; outer endite of 4+6 teeth (two apically cleft). Maxilla (Fig. 7D) outer lobe twice as wide as inner lobe, rounded and covered with thin setae; inner lobe bearing thick setae. Maxilliped (Fig. 7E) with basal article of palp bearing two setae distinct in length; endite subrectangular, medial seta surpassing distal margin. Uropod (Fig. 8A) protopod with glandular pores on outer groove, exopod slightly longer than endopod. Pereopod 1-7 (Fig. 8B, C) merus and carpus with slightly sparse setae on sternal margin; carpus 1 with antennal grooming brush transverse, distal seta apically with five points; dactylus with dactylar seta and ungual seta simple not surpassing outer claw. Genital papilla (Fig. 8D) with triangular ventral shield and subapical orifices. Pleopod 1 (Fig. 8E) exopod subquarangular, twice as wide as long; endopod almost three times as long as exopod, inner margin bearing small setae. Pleopod 2 (Fig. 8F) exopod triangular bearing one seta on outer margin; endopod very long, more than three times as long as exopod. Pleopod 3-5 exopods as in Fig. 8 G–I .

Etymology.

The new species is named after Dr. Georgina Bond-Buckup for all her contributions to the knowledge of crustaceans, including Oniscidea .

Remarks.

Iansaoniscus georginae sp. n. is readily distinguishable from I. iraquara sp. n. in the shape of the cephalon, epimeron of pereonite 1 with reduced dorsolateral furrow, shape of ventral lobes on pereonites 1 and 2, and shape of the male pleopods 1 and 2.