Bennelongia hirsuta Martens & Halse & Schön 2013, sp. nov.
Creators: name: Martens, Koen
name: Halse, Stuart
name: Schön, Isa
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Ostracoda
Podocopida
Cyprididae
Bennelongia
Bennelongia hirsuta

description: Bennelongia hirsuta sp. nov.
Figs 13 F-I, 14
urn:lsid:zoobank.org:act: CDE0D1E7-52E6-4F18-B6FF-B3AD48C6E4B4
Diagnosis
Valves elongated, with greatest height situated well in front of the middle, dorsal margin evenly sloping towards the posterior side; ventral margin anteriorly with pronounced mandibular curve. LV (Fig. 14A, D) with antero-ventral inner list large, well-overlapping the dorsal il. RV (Fig. 14B, E) with anteroventral lapel long, narrow and weakly crenulated (Fig. 14 J-M).
Carapace in dorsal and ventral view (Fig. 14 G-I) with greatest width in the middle, most hirsute, anteriorly with a clear rostrum; in lateral views (Fig. 14C, F) anteriorly with a clear LV>RV overlap.
Hemipenes asymmetrical (Fig. 13F, I), ls with slender base, ventrally sharply beak-shaped and pointed, only slightly protruding beyond ventral tip of ms. Right prehensile palp (Fig. 13G) with distal segment stout and subquadrate, anterior margin straight, dorsal margin sinuous. Left prehensile palp (Fig. 13H, H’) with distal segment short and sickle-shaped, reaching beyond ventro-apical margin of proximal segment with less than a third of its length.
Etymology
Named after the hirsute (‘hairy’) nature of this species. All species of the B. barangaroo lineage are hirsute to some extent, but the present species is more so, with the entire carapace set with long and stiff setae.
Measurements (all measurements in µm – see Table 1 for measurements of all specimens illustrated with SEM)
Holotype ♂ (WAMC52269): RV: L = 1260, H = 738. LV: L = 1320, H = 763.
Allotype ♀ (WAMC52270): RV: L = 1400, H= 842. LV: L = 1470, H = 845.
Type locality
Rock pools (gnammas) on Styles Rock, WA, ca. 80 km N of Esperance. Approximate coordinates: 33º07’35” S, 121º48’02” E (WGS 84). All specimens (voucher sample OSTR012D; locality code SPS139), collected on 07 Sep. 1998 by J. McRae & A. Pinder with a sweep net.
Type material
Holotype
♂ (WAMC52269), with soft parts dissected in a sealed slide and valves stored dry in a micropalaeontological slide.
Allotype
♀ (WAMC52270), with soft parts dissected in a sealed slide, and valves stored dry in a micropalaeontological slide.
Paratypes
Numerous ♂♂ and ♀♀, as valves or carapaces (WAMC 52271-52277; OC.3323-3325). Nine ♂♂ and ♀♀ in bulk in EtOH (WAMC 52278).
Other material investigated
? One ♀ (WAMC 52279) from Lilian Stokes Rocks (BVT /10/09) (identification uncertain).
Differential diagnosis
Bennelongia hirsuta sp. nov. can be distinguished from all other species in the B. barangaroo lineage by the pointed shape of the ls in the hemipenis. Also the shapes of the distal segments of the prehensile palps are distinctive. In valve morphology, the species is easily recognisable by the long and narrow lapel on the RV (which is nevertheless very difficult to see with a normal binocular microscope) and the large antero-ventral il.
Ecology and distribution
The species is thus far only known with certainty from its type locality, a set of rock pools on Styles Rock.
description: Published as part of Martens, Koen, Halse, Stuart & Schön, Isa, 2013, On the Bennelongia barangaroo lineage (Crustacea, Ostracoda) in Western Australia, with the description of seven new species, pp. 1-59 in European Journal of Taxonomy 66 on pages 31-33, DOI: 10.5852/ejt.2013.66, http://zenodo.org/record/3827594