Aname salina, Wilson & Rix & Harvey, 2023
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publication ID |
https://doi.org/ 10.5852/ejt.2023.890.2247 |
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DOI |
https://doi.org/10.5281/zenodo.8284466 |
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persistent identifier |
https://treatment.plazi.org/id/0876101E-FFB0-FFB3-FD39-A039E3D96CCF |
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treatment provided by |
Felipe |
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scientific name |
Aname salina |
| status |
sp. nov. |
Aname salina sp. nov.
urn:lsid:zoobank.org:act:0C1B6CB6-2BEF-4204-82C4-1E9A7B1E67EA
Figs 1–2 View Fig View Fig , 4–5 View Fig View Fig
Diagnosis
Males of A. salina sp. nov. can be distinguished from those of other Aname except members of the mainae group (see below) by the combination of highly elongate posterior sigilla ( Fig. 4G View Fig ), abdominal chevrons or pattern (more conspicuous in ethanol than in life, see Figs 1C–D View Fig , 4B View Fig ) and the shape of metatarsus I, which has a short proximal excavation and a relatively long and elongate distal section with a straight or concave ventral edge ( Fig. 4Q View Fig ). They can be distinguished from those of other members of the mainae group as follows: from A. lorica Castalanelli, Framenau, Huey, Hillyer & Harvey, 2020 by the more elongate embolus and more elongate asetose depression on the pedipalpal tibia (PDL/PTL 0.65 cf. 0.60) ( Fig. 4K–M View Fig ; cf. Castalanelli et al. 2020: fig. 55); from A. aragog Harvey, Framenau, Wojcieszek, Rix & Harvey, 2012 and A. mcleeryorum Harvey & Huey, 2020 by their much more elongate embolus ( Fig. 4L–M View Fig ; cf. Harvey et al. 2012: figs 32–33; Harvey et al. 2020: fig. 73); from A. exulans Harvey & Huey, 2020 by the embolus, which is clearly demarcated from the bulb ( Fig. 4L–M View Fig ; cf. Harvey et al. 2020: fig. 15); and from A. mainae Raven, 2000 by the longer asetose depression on the pedipalpal tibia ( Fig. 4K View Fig ; cf. Main 1982: fig. 2B).
Females of A. salina sp. nov. can be distinguished from all those of other species of Aname by their spermathecae, which consist of single, elongate vesicles with several articulations, and tiny accessory vesicles near the base. Only A. lorica possesses a similar conformation, but in A. salina the primary vesicles are more elongate ( Fig. 5L View Fig ; cf. Castalanelli et al. 2020: figs 60–61). Like in males, females of mainae group species (including A. salina ) also generally have highly elongate posterior sigilla and faint abdominal chevrons ( Figs 1C View Fig , 5B, G View Fig ).
Etymology
The species epithet refers to the coastal distribution of this species (‘ salina ’, Latin, for ‘salt’, ‘salty’) ( Brown 1956).
Material examined
Holotype AUSTRALIA – Western Australia • ♂; Ashburton Salt, ca 25.2 km WSW of Onslow; 21°43′ S, 114°53′ E; 12 Apr. 2019; D. Kamien and M. Greenham leg.; WAM T148204 . GoogleMaps
Paratypes AUSTRALIA – Western Australia • 1 ♂; Ashburton Salt , ca 2 km ESE of Onslow; 21°39′ S, 115°08′ E; 11 Apr. 2019; P. Brooshooft and M. Greenham leg.; WAM T148195 GoogleMaps • 1 ♂; Ashburton Salt, ca 22 km WSW. of Onslow ; 21°44′ S, 114°56′ E; 15 Apr. 2019; J. Keen and M. Greenham leg.; WAM T148216 GoogleMaps • 1 ♀; Ashburton Salt , ca 25.2 km WSW of Onslow; 21°43′ S, 114°53′ E; 12 Apr. 2019; M. Greenham and D. Kamien leg.; WAM T148205 GoogleMaps • 1 ♂; Ashburton Salt , ca 39 km SW of Onslow; 21°48′ S, 114°46′ E; 13 Apr. 2019; J. Keen and M. Greenham leg.; WAM T148209 GoogleMaps • 1 ♂; Ashburton Salt , ca 39.5 km WSW of Onslow; 21°48′ S, 114°46′ E; 12 Apr. 2019; P. Brooshooft and M. Greenham leg.; WAM T148203 GoogleMaps • 1 ♂; same collection data as for preceding; WAM T148202 GoogleMaps • 1 ♂; same collection data as for preceding; 15 Apr. 2019; WAM T148217 GoogleMaps .
Other material examined
AUSTRALIA – Western Australia • 1 juvenile; Ashburton Salt , ca 39 km SW of Onslow; 21°48′ S, 114°46′ E; 3 Nov. 2018; P. Brooshooft leg.; WAM T148716 GoogleMaps • 1 ♂; Cape Range National Park, camps; 22°01′ S, 113°56′ E; 7 Apr. 1998; R. Karniewicz leg.; WAM T44339 GoogleMaps • 1 ♂; Cape Range National Park, Yardie Creek ; 22°19′ S, 113°49′ E; 24 Mar. 2021; M.S. Harvey and M.E. Blosfelds leg.; WAM T153270 GoogleMaps • 1 ♂; Cape Range National Park, Yardie Creek campground ; 22°19′ S, 113°49′ E; 24 Mar. 2021; M.S. Harvey and M.E. Blosfelds leg.; WAM T153269 GoogleMaps • 1 ♀; Cape Range, coastal dune site ; 21°59′ S, 113°56′ E; 24 Jun. 2019; R.J. Ellis leg.; WAM T148135 GoogleMaps • 1 juvenile; Cape Range, Defence Land ; 22°28′ S, 113°51′ E; 22 Jun. 2019; P. Doughty et al. leg.; WAM T148117 GoogleMaps .
Description
Male holotype (WAM T148204)
DIMENSIONS (mm). Total body length 23.7. Carapace length 9.5, width 8.0; abdomen length 9.4, width 5.6. Leg I: femur 7.8; patella 4.8; tibia 6.1; metatarsus 6.1; tarsus 3.6.
COLOUR (in alcohol) ( Fig. 4 View Fig ). Carapace chocolate-brown, caput slightly darker than thoracic region; chelicerae dark red-brown; legs and ventral prosoma concolorous with carapace; abdomen grey-brown with pale mottled chevrons; ventral abdomen pale. In life, carapace and legs darker, almost black ( Fig. 1D View Fig )
CARAPACE, CHELICERAE, ABDOMEN ( Fig. 4A–F View Fig ). Carapace 1.19 × longer than broad; almost glabrous, but with inconspicuous silver hairs present; clypeal edge straight; fovea straight. Eye group rectangular (width/length 2.22), on distinct tubercle. Chelicerae without rastellum. Abdomen 1.69 × longer than wide, pilose.
MOUTHPARTS AND STERNUM ( Fig. 4G–I View Fig ). Labium width/length 2.19, without cuspules. Left maxilla with 150-160 cuspules, spread across inner 40% of maxillae. Coxae without cuspules. Sternum length/width 1.25; with setae over entire surface; with 3 pairs of sigilla, each pair increasing in size from anterior to posterior; all pairs close to sternum margin; posterior pair thin and elongate.
PEDIPALP ( Fig. 4J–M View Fig ). Tibia cylindrical, length/width 2.72; PDL/PTL 0.65; prolateral face with two distal spines, ventral face with 1 spine and 1 strong bristle proximally, at base of pedipalpal depression; cymbium length/width 2.78, medially constricted and broadest distally; scopula present distally; bulb ovoid, 0.42 × PTL; embolus, thin and curving, with slight basal flange; embolus 2.2 × longer than bulb.
LEG I ( Fig. 4N–Q View Fig ). Tibia I with large megaspur; TIL/TID 4.12; TIS/TIL 0.63; TISH/TID 0.56; metatarsus incrassate, with proximal excavation; MIL/ MID 5.64; MIPEL/MIL 0.40; scopulae present on tarsus and distal metatarsus.
Female holotype (WAM T148205)
DIMENSIONS (mm). Total body length 19.0. Carapace length 8.0, width 6.5; abdomen length 7.1, width 3.9. Leg I: femur 5.8; patella 3.7; tibia 4.1; metatarsus 3.9; tarsus 2.6.
COLOUR (in alcohol) ( Fig. 5 View Fig ). Carapace uniformly tan-brown; legs and ventral prosoma concolorous; chelicerae darker red-brown; dorsal abdomen grey-brown with pale chevrons, ventral abdomen yellow-brown. In life much darker, carapace and legs almost black ( Fig. 1C View Fig ).
CARAPACE, CHELICERAE, ABDOMEN ( Fig. 5A–F View Fig ). Carapace 1.23 × longer than broad; virtually glabrous; clypeal edge slightly convex; fovea slightly procurved. Eye group rectangular (width/length 1.92), on distinct tubercle. Rastellum absent. Abdomen 1.85 × longer than wide, lightly pilose.
MOUTHPARTS AND STERNUM ( Fig. 5G–I View Fig ). Labium width/length 2.13, without cuspules. Left maxilla with 160-170 cuspules, spread laterally on inner 40% of maxilla. Coxae without cuspules. Sternum length/ width 1.15; with denser setation around edge; with 3 pairs of sigilla, each pair increasing in size from anterior to posterior; all pairs close to sternum margin; posterior pair thin and elongate.
LEG I ( Fig. 5J–K View Fig ). Spination, femur 2 bristles (1PL, 1D), patella 2 (2PL), tibia 8 (3PL, 1V and 4RL), metatarsus 6 (3PL, 3RL), tarsus 0, total 18; metatarsus length/width 5.00; scopulae present on tarsus and metatarsus.
GENITALIA ( Fig. 5L View Fig ). Each spermatheca with one elongate receptacle and a small accessory vesicle at the base, positioned medially. The elongate receptacle is convoluted, with three articulations – from the base it angles laterally, medially, laterally, medially.
Remarks
This species was previously recognised under two different code names – Aname ‘MYG627’ for a female specimen from Exmouth, and ‘MYG712’ for male specimens from Ashburton salt (not included in previous phylogenies). It is a member of the mainae group (Clade 7) sensu Rix et al. (2021) ( Fig. 1 View Fig ).
Distribution and natural history
Two reciprocally monophyletic populations of Aname salina sp. nov. are currently known ( Fig. 2 View Fig ). One of these is around the town of Onslow (most specimens are from the west of the town, near the Ashburton River), the other is in Cape Range National Park. Although these were recovered as monophyletic groups ( Fig. 1 View Fig ), average pairwise divergence in COI between them is just 5.15% (low for COI in mygalomorph spiders, see Castalanelli et al. 2014) and they show no evidence of morphological divergence based on the samples available to us. The habitat in the regions where this species occurs is a mix of bare sand and salt flats, tussock, and hummock (spinifex) grasslands, and coastal habitats. Based on when adult males of this species have been collected, they appear to mature in Autumn (March/April).
| WAM |
Western Australian Museum |
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