Amastigogonus peninsulensis, Mesibov, Robert, 2017

Mesibov, Robert, 2017, Iulomorphid millipedes (Diplopoda, Spirostreptida, Iulomorphidae) of Tasmania, Australia, ZooKeys 652, pp. 1-36 : 16-17

Amastigogonus peninsulensis sp. n. Fig. 8B

Holotype.

Male, Coal Mine Hill, Tas, -42.9852 147.7113 ± 25 m, 40 m a.s.l., 20 June 2016, R. Mesibov, QVM 23:54544.

Paratypes.

13 males and 5 females, details as for holotype, QVM 23:54545.

Other material.

3 males and 1 female from 3 unique localities; details in Suppl. material 1.

Diagnosis.

Like Amastigogonus michaelsae sp. n. in having a relatively broad, gently tapering pseudoflagellum, but with the tip directed distally and without a prominent tooth on the posterior margin.

Description.

Mature males observed with (40+3) rings, 1.8 mm midbody diameter to (60+1) rings, 2.5 mm. Cardo not deeper posteriorly. Leg 7 (only) with elongated coxa. Prefemoral pad ca 3/4 femur length. Striae on posterior metazonites reaching 1/2 ozopore height.

Coxite process on anterior gonopod (Fig. 8B) with very small portion of posterodistal margin slightly extended as rounded tab, bent laterally rather than folded over. Telopodite with single row of prominent setae on posterior side of medial thickening and shorter row of similarly prominent setae on anterior side. Pseudoflagellum ca 1/2 width of telopodite at base, posterior margin a little expanded at 1/3-1/2 pseudoflagellum height, apex acuminate and directed posteriorly.

Distribution.

Eucalypt forest on Forestier and Tasman Peninsulas (Fig. 7A) in Tasmania, from near sea level to at least 260 m.

Name.

For the Tasman Peninsula, type locality of this species; adjective.