Eviulisoma ejti, Enghoff, 2018
Enghoff, Henrik, 2018, A mountain of millipedes VII: The genus Eviulisoma Silvestri, 1910, in the Udzungwa Mountains, Tanzania, and related species from other Eastern Arc Mountains. With notes on Eoseviulisoma Brolemann, 1920, and Suohelisoma Hoffman, 1963 (Diplopoda, Polydesmida, Paradoxosomatidae), European Journal of Taxonomy 445, pp. 1-90 : 34-36
treatment provided by
Eviulisoma ejti sp. nov.
urn:lsid:zoobank.org:act:8 DAFBA5 D-17C5-49 A 6- A 290-D0D540D1295F
Differs from other species of the E. kwabuniense group by map being apically shaped like a narrow, slightly hooked spoon and at ca ¾ of its length having a side branch, in combination with a spinose iap and a solenophore with a large, hooked dorsal lobe.
The species name honours the European Journal of Taxonomy (EJT), in recognition of its immense importance for the dissemination of taxonomic research in Europe, and beyond.
Material studied (total: 5 ♂♂)
TANZANIA: 4 ♂♂, same collection data as for holotype ( ZMUC).
Referred non-type material
TANZANIA: 1 ♀, tentatively referred to this species, same collection data as for holotype ( ZMUC).
SIZE. Length 15 mm, max. width 1.5 mm.
COLOUR. After 20 years in alcohol uniformly light yellowish brown, a little darker dorsally.
ANTENNAE. Reaching back to middle of ring 3.
BODY RINGS. Paranota completely absent. Stricture between pro- and metazonite clearly striolate. A transverse row of setae on all body rings, but many setae abraded.
HYPOPROCT. Large, trapezoid, almost rectangular, with three prominent marginal tubercles.
LEGS. Length = body width. Relative lengths of podomeres: prefemur = femur> tarsus> tibia> postfemur. Scopulae ( Fig. 7C View Fig. 7 ) on femur, postfemur, tibia and tarsus, present until last pair of legs, although less dense posteriorly.
STERNUM 5. A trapezoid process, slanting anteriad, between legs 4 ( Fig. 6 A –B View Fig. 6 ).
STERNUM 6. Deeply excavated. Rim of excavation simple ( Fig. 6 A –B View Fig. 6 ).
GONOPODS ( Fig. 16 View Fig. 16 ). Coxal lobe (cxl) prominent. Prefemoral part (prf) ca 0.4× as long as acropodite. Mesal acropodital process (map) stout, straight, apically divided into long, narrowly spoon-shaped, slightly hooked branch and short, rounded-triangular side branch. Intermediate acropodital process (iap) almost as long as map, very slender, straight, densely spinose. Solenophore (sph) very large, ca 0.8× as long as map, deeply divided into relatively broad, mesally concave, apically hooked dorsal process (sph-d) and much shorter, long, lamelloid ventral process (sph-v), a very short lamelloid process between sph-d and sph-v.
Distribution and habitat
Known only from the Udzungwa Scarp FR, 11 km SE of Masisiwe Village, Kihanga Stream, 1800 m a.s.l.
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