Bennelongia hirsuta, Martens & Halse & Schön, 2013
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publication ID |
https://doi.org/ 10.5852/ejt.2013.66 |
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publication LSID |
lsid:zoobank.org:pub:5270B024-84C1-4CD5-BC18-4AF37D2E1045 |
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DOI |
https://doi.org/10.5281/zenodo.3846922 |
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persistent identifier |
https://treatment.plazi.org/id/CDE0D1E7-52E6-4F18-B6FF-B3AD48C6E4B4 |
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taxon LSID |
lsid:zoobank.org:act:CDE0D1E7-52E6-4F18-B6FF-B3AD48C6E4B4 |
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treatment provided by |
Carolina |
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scientific name |
Bennelongia hirsuta |
| status |
sp. nov. |
Bennelongia hirsuta sp. nov.
Figs 13 View Fig 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 View Fig ) with antero-ventral inner list large, well-overlapping the dorsal il. RV ( Fig. 14B, E View Fig ) with anteroventral lapel long, narrow and weakly crenulated ( Fig. 14 View Fig J-M).
Carapace in dorsal and ventral view ( Fig. 14 View Fig G-I) with greatest width in the middle, most hirsute, anteriorly with a clear rostrum; in lateral views ( Fig. 14C, F View Fig ) anteriorly with a clear LV>RV overlap.
Hemipenes asymmetrical ( Fig. 13F, I View Fig ), ls with slender base, ventrally sharply beak-shaped and pointed, only slightly protruding beyond ventral tip of ms. Right prehensile palp ( Fig. 13G View Fig ) with distal segment stout and subquadrate, anterior margin straight, dorsal margin sinuous. Left prehensile palp ( Fig. 13H View Fig , 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 View 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.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.