Description

Description. Male / female approximate measurements: length 14 / 13 mm, ring 12 paranota width 1.7 / 1.7 mm. Live and recently preserved specimens mainly dark brown, paler ventrally and in patches on paranota and sometimes medially at rear of metatergites; legs pale, light brown distally. Most non-gonopod details as for T. armatum, but relative widths tergite 6> 5> 4> (2, head)> 3> collum, ring 12 paranota 1.4 × as wide as prozonite, male sternites ca 1.2 × longer than wide. Most paranota with small rounded tooth at posterior corner, some paranota with second, smaller, rounded tooth just medial to corner; paranota decreasing in width from ring 11, ring 16 paranota merely a thickening without marginal groove, ring 17 without trace of paranota. Leg 6 with tarsus ca 1.5 × as long as femur; prefemur with unusually long brush setae and thin, triangular projection on posterior surface, directed basally (Fig. 6 E). Ring 2 pit deep, wide, rim not well-defined posteromedially. Ring 6 sternite with legs 6 closer together than legs 7; short, thin leg 6 tab with brush of fine setae; leg 7 tab long, thickened, with brush of fine setae; anterior margin of sternite with a few long, fine setae. Gonopod telopodite (Fig. 11) tapering distally from laterally swollen lower portion; divided into four main processes at ca 2 / 3 telopodite height. Undivided portion with posterior surface roundly ridged longitudinally, base posteriorly extended as thin shelf, concave Figure ||. Tasmaniosoma bruniense sp. n., paratype male ex QVM 23: 51633. Lateral A, anterior B, medial C and posterior D views of left gonopod telopodite. Setation only shown in A, dashed lines mark course of prostatic groove. Scale bar = 0.2 mm. distally. Four distal processes comprise: (a) long, mediolaterally flattened, apically acute, slightly sinuous process arising on posteromedial surface; (b) short, somewhat flattened posterolateral process with rounded-truncate tip; (c) large solenomere arising on anterolateral surface, slightly flattened mediolaterally, the apex bent posteriorly and curving laterally, the tip bifid with the prostatic groove terminating in the lower portion; (d) large, apically acute process, slightly flattened mediolaterally, arising just anteromedial to solenomere base, closely pressed to solenomere and reaching nearly as far distally. In addition, a short, acute process arising at ca 1 / 2 telopodite height on anterolateral surface and terminating just distal to level of solenomere base. Tracts of fine setae posteriorly on posterior longitudinal ridge, and running obliquely from posterobasal shelf to just basal to anterior process on anterolateral surface. Prostatic groove running distally on medial surface of telopodite to just basal to division into processes, then running posterolaterally to enter solenomere base. Female leg 2 prefemur distally swollen, with small, rounded, tooth-like projection arising midlength on posteromedial surface; sternites as wide as long; posterior margin of epigynum produced as short, wide trapezoid.

Common Names

Taxonomic Hierarchy

Kingdom: Animalia

Phylum: Arthropoda

Class: Diplopoda

Order: Polydesmida

Family: Dalodesmidae

Genus: Tasmaniosoma

Species: Tasmaniosoma bruniense Mesibov, 2010