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OONOPIDAE SPECIES DESCRIPTION
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Xyphinus sabal       Get publication



            Male (PBI_OON 16210). Total length 1.91. CEPHALOTHORAX: Carapace orange-brown, without any pattern, broadly oval in dorsal view, pars cephalica strongly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with angular posterolateral corners, posterolateral edge without pits, posterior margin not bulging below posterior rim, anterolateral corners with slightly sclerotized triangular projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica finely reticulate, sides finely reticulate, thorax without depressions, fovea present, fovea barely visible. Margin covered with small pustules, without radiating rows of pits; lateral margin straight, rebordered, with blunt denticles; plumose setae near posterior margin of pars thoracica absent; non-marginal pars cephalica setae light, needle-like, present, scattered; non-marginal pars thoracica setae absent; marginal setae light, needle-like. Clypeus margin unmodified, sinuous in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent; setae present, light, needle-like, two pairs of slightly longer and stronger setae, situated just below the anterior eyes. Chilum absent. Eyes six, well developed, PME largest, ALE circular, PME oval, PLE oval; posterior eye row recurved from above, procurved from front; ALE separated by their radius to diameter, ALE-PLE separated by less than ALE radius, PME touching throughout most of their length, PLE-PME separated by less than PME radius. Sternum longer than wide, orange-brown, uniform, fused to carapace, median concavity absent, without radial furrows between coxae I-II, II-III, III-IV, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture absent, sickle-shaped structures not touching, anterior margin unmodified, posterior margin not extending posteriorly of coxae IV, anterior corner unmodified, distance between coxae approximately equal, extensions of pre-coxal triangles present, lateral margins unmodified, without posterior hump, anterior margin slightly sclerotized; setae abundant, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae slightly divergent, anterior face with swelling; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered, promargin with two slightly longer and stronger setae, directed medially; paturon inner margin with scattered setae, distal region unmodified. Labium rectangular, fused to sternum, anterior margin indented at middle, same as sternum in sclerotization, posterior margin slightly sclerotized; with 3-5 setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, anteromedian tip with backwards folded ridge, posteromedian part unmodified, same as sternum in sclerotization, posteromedian part sclerotized. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube medium, ribbed, scuto-pedicel region unmodified, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, scuto-pedicel region with few sharply pointed denticles; needle-like hairs originating from these denticles. Dorsal scutum strongly sclerotized, orange-brown, without color pattern, covering full length of abdomen, no soft tissue visible from above, not fused to epigastric scutum, middle surface punctate, sides punctate, anterior half without projecting denticles, dorsal scutum embedding narrow tip of abdomen. Projecting denticles small. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-brown, almost semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, light. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Spinneret scutum with fringe of needle-like setae. Dense patch of setae anterior to spinnerets absent. Interscutal membrane with setae. Colulus present. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, tibia IV specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi III and IV weak ventral scopula absent, metatarsi harpoon-like hairs covering the distal part of Metatarsi III and IV. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria examined with Compound microscope; tibia: each with three; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore small, circular, situated at level of anterior spiracles, unmodified; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus not clearly discernible; trochanter normal size, unmodified; femur normal size, one to two times as long as trochanter, attaching to patella basally; patella about as long as femur, not enlarged; tibia trichobothria with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, fused with bulb but with clearly defined seam between, not extending beyond distal tip of bulb, without stout setae, without distal patch of setae, with four strong, long setae, three prolaterally, one more retrolaterally; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, spherical, ventral margin ribbed. Several sclerotized apophyses. Broad membranous outgrowths visible ventrally.
Xyphinus sabal, male habitus, dorsal view (image by YK, specimen ID: ---16210)

xyphisabalmphabd16210YK.tif

Xyphinus sabal, male habitus, ventral view (image by YK, specimen ID: ---16210)

xyphisabalmphabv16210YK.tif

Xyphinus sabal, male habitus, lateral view (image by YK, specimen ID: ---16210)

xyphisabalmphabl16210YK.tif

Xyphinus sabal, male carapace, dorsal view (image by YK, specimen ID: ---16210)

xyphisabalmpcard16210YK.tif

Xyphinus sabal, male carapace, ventral view (image by YK, specimen ID: ---16210)

xyphisabalmpcarv16210YK.tif

Xyphinus sabal, male carapace, lateral view (image by YK, specimen ID: ---16210)

xyphisabalmpcarl16210YK.tif

Xyphinus sabal, male carapace, anterior view (image by YK, specimen ID: ---16210)

xyphisabalmpcara16210YK.tif

Xyphinus sabal, male carapace, posterior view (image by YK, specimen ID: ---16210)

xyphisabalmpcarT16210YK.tif

Xyphinus sabal, male abdomen, dorsal view (image by YK, specimen ID: ---16210)

xyphisabalmpabdd16210YK.tif

Xyphinus sabal, male abdomen, ventral view (image by YK, specimen ID: ---16210)

xyphisabalmpabdv16210YK.tif

Xyphinus sabal, male abdomen, lateral view (image by YK, specimen ID: ---16210)

xyphisabalmpabdl16210YK.tif

Xyphinus sabal, male abdomen, anterior view (image by YK, specimen ID: ---16210)

xyphisabalmpabda16210YK.tif

Xyphinus sabal, male abdomen, posterior view (image by YK, specimen ID: ---16210)

xyphisabalmpabdT16210YK.tif

Xyphinus sabal, male palp, prolateral view (image by YK, specimen ID: ---16210)

xyphisabalmppalp16210YK.tif

Xyphinus sabal, male palp, retrolateral view (image by YK, specimen ID: ---16210)

xyphisabalmppalr16210YK.tif

Xyphinus sabal, male palp, prolateral view (image by YK, specimen ID: ---16210)

xyphisabalmdpalp16210YK.tif

Xyphinus sabal, male palp, retrolateral view (image by YK, specimen ID: ---16210)

xyphisabalmdpalr16210YK.tif

Xyphinus sabal, male palp, ventral view (image by YK, specimen ID: ---16210)

xyphisabalmdpalv16210YK.tif

 

DISTRIBUTION

MALAYSIA
Xyphinus sabal coordinates
Click the following link for a map from Discover Life which displays the records below. You can click anywhere on that map to zoom in, and clicking on any point will display the full data for that locality Xyphinus sabal, Discover Life Map
 

MATERIAL EXAMINED
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PBI USI Country State Division Locality Sex Type Status Elevation(m) GPS Coordinate Habitat Collection_Date Collector Inst. Code
PBI_OON 00016210  MALAYSIA  Sarawak    Serian, Sabal (=Forest Research Station)  1 Adult Male  Holotype  190  1.48484; 110.33080    10 Dec 1987  C. Lienhard  MHNG 


 
 
 
 
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