Taintaturus rostratus Pesic & Smit
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publication ID |
https://doi.org/ 10.5281/zenodo.193562 |
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DOI |
https://doi.org/10.5281/zenodo.6200724 |
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persistent identifier |
https://treatment.plazi.org/id/2E2D2B30-FF8F-FFE5-FF44-5CCB9A5303AA |
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treatment provided by |
Plazi |
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scientific name |
Taintaturus rostratus Pesic & Smit |
| status |
sp. nov. |
Taintaturus rostratus Pesic & Smit sp. nov.
( Fig. 2C View FIGURE 2 A – L , 8A–B View FIGURE 8 A – B , 9A–B View FIGURE 9 A – B , 10A–C View FIGURE 10 A – C )
Type material. Holotype: male dissected and slide mounted in Hoyer's fluid. New Zealand, South Island: Selwyn River near Coalgate, 04.vi.2004. Paratype: 1/0/0 (mounted), same location as holotype, 10.v.2004; 0/ 1/0 (mounted), same location as holotype, 04.vi.2004; 1/0/0, Selwyn River near Chamberlain's Ford, 21.x.2004.
Diagnosis. Surface of dorsal sclerites smooth; anterodorsal portion of ventral shield forming a well developed and pointed hood; P-2 and -3 without ventral projection; P-4 relatively long; P-5 stocky.
Description. Male (holotype, in parentheses some measurements of the paratype). Integumental pigment absent; eye pigment reduced; surface of sclerites smooth (as shown in Fig. 2C View FIGURE 2 A – L ); dorsal shield ( Fig. 8A View FIGURE 8 A – B ) L 506 (484), W 388 (363); anteromedial plate L 253 (241), W 299 (283); anterolateral platelets bearing a pair of glandularia; a pair of small glandularia lying free in the integument between anterolateral and posterolateral platelets; posteromedial plate bearing two pairs of glandularia; anterodorsal portion of ventral shield forming a well developed and pointed hood; ventral shield ( Fig. 8B View FIGURE 8 A – B ) L 656 (650), W 469; capitular bay L 206; tips of first, second and third coxae somewhat pointed and with well developed intercoxal slots; projections associated with insertions of IV-L relatively small and extending lateral margins of idiosoma; medial of insertions of IV-L a pair of short apodemes and a pair of and a pair of glandularia; gonopore terminal, L 39 (37), W 15; palp ( Fig. 9A View FIGURE 9 A – B ): total L 319, dL: P-1, 46; P-2, 108 (102); P-3, 52 (59); P-4, 94 (88); P-5, 19 (19); %L: P-1, 14.4; P-2, 33.9; P-3, 16.3; P-4, 30.0; P-5, 6.0; P-2 and -3 without ventral projections; P-4 relatively long; P-5 very short; capitulum ventral L 146; chelicera total L 182; dL of IV-L-2-6: 100 (96), 49 (49), 60 (58), 77 (72), 71 (71); maximum H of IV-L-2, 65 (63); IV-L-2 L/H ratio, 1.54 (1.52); chaetotaxy of IV-L as illustrated in Fig. 9B View FIGURE 9 A – B ; swimming hairs absent.
Female. Similar to male except for genital field ( Fig. 10A View FIGURE 10 A – C ); dorsal shield L 519, W 414; anteromedial plate L 244, W 313; ventral shield L 665, W 544; capitular bay L 206; gonopore terminal; palp ( Fig. 10B View FIGURE 10 A – C ): total L 329, dL and %L (in parentheses): P-1, 48 (14.6); P-2, 109 (33.1); P-3, 59 (17.9); P-4, 94 (28.6); P-5, 19 (5.8); chelicera ( Fig. 10C View FIGURE 10 A – C ) total L 197; dL of IV-L-2-6: 114, 48, 62, 79, 74; maximum H of IV-L-2, 72; IV-L-2 L/H ratio, 1.58.
Etymology. Named for the distinct long hood at anterior margin of ventral shield.
Remarks. Due to the presence of relatively smooth sclerites, a proportionally long hood at anterior margin of the ventral shield and P-2 and -3 lacking a ventral projection the new species is similar to Taintaturus brevipalpis Cook, 1991 , known from driven wells in the vicinity of Nelson, South Island ( Cook 1991). The latter species differs from T. rostratus in a number of characteristics: relatively wide anteromedial and posteromedial plates of the dorsal shield, less developed and pointed hood at anterior margin of ventral shield, a relatively longer P-5 and shorter, stockier palpal segments, especially P-2 and P-4 (see: Cook 1991).
Ecology. The studied material was collected from May to November, from the perennial part of the river in the foothills (Coalgate) and coastal plains (Chamberlain’s Ford) regions.
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.