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OONOPIDAE SPECIES DESCRIPTION
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Xyphinus krabi       Get publication



            Male (PBI_OON 31656). Total length 1.86. CEPHALOTHORAX: Carapace orange-brown, without any pattern, ovoid 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 with pair of pits, posterior margin not bulging below posterior rim, anterolateral corners without extension or projections, posterolateral surface with 1 pair of spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea present, fovea barely visible, without radiating rows of pits; lateral margin straight, smooth, without 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 light, needle-like; marginal setae light, needle-like. Clypeus margin slightly rebordered, curved downwards 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. Chilum absent. Eyes six, well developed, ALE largest, all eyes oval; posterior eye row recurved from above, straight from front; ALE separated by their radius to diameter, ALE-PLE touching, 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 smooth, 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 absent, lateral margins unmodified, without posterior hump, anterior margin of sternum sclerotized. A pair of sclerotized impressions opposite coxae III, ending fan-like. Sickle-shaped structures extending fan-like anteriorly;; setae abundant, light, needle-like, evenly scattered, originating from small pits, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae straight, anterior face unmodified, promargin with few small granules; promargin with three or more teeth, retromargin without teeth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon distal region unmodified, promargin unmodified. Labium rectangular, fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; 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, much more heavily sclerotized than sternum, backwards folded rigde triangular. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly; dorsum soft portions white, without color pattern. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube long, ribbed, scuto-pedicel region with W-shaped scutal ridge, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, scutal ridge sinuous, with four long setae dorsal of pedicel, directed anteriorly. 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 smooth, sides smooth, anterior half without projecting denticles. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-brown, long, semicircular, covering nearly full length of abdominal length, anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum present, incomplete ring. Dorsum setae present, light, needle-like. 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. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, tibia IV specialized hairs on ventral apex absent. Trichobothria examined with Compound microscope; tibia: each with three; metatarsus: each with one. GENITALIA: Epigastric region with sperm pore large, circular, situated in front 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; trochanter normal size, unmodified; femur normal size, two or more times as long as trochanter, attaching to patella basally; patella shorter than femur, not enlarged, setae unmodified, with few granules prolaterally; tibia with rows of granules prolaterally, trichobothria with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, without stout setae; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, spherical, distal part with several dark apophyses and two membranous outgrowths, embolus not discernible.
Xyphinus krabi, male habitus, dorsal view (image by YK, specimen ID: ---31656)

xyphikrabimphabd31656YK.tif

Xyphinus krabi, male habitus, ventral view (image by YK, specimen ID: ---31656)

xyphikrabimphabv31656YK.tif

Xyphinus krabi, male habitus, lateral view (image by YK, specimen ID: ---31656)

xyphikrabimphabl31656YK.tif

Xyphinus krabi, male carapace, ventral view (image by YK, specimen ID: ---31656)

xyphikrabimpcarv31656YK.tif

Xyphinus krabi, male carapace, anterior view (image by YK, specimen ID: ---31656)

xyphikrabimpcara31656YK.tif

Xyphinus krabi, male abdomen, anterior view (image by YK, specimen ID: ---31656)

xyphikrabimpabda31656YK.tif

Xyphinus krabi, male chelicerae, prolateral view (image by YK, specimen ID: ---31656)

xyphikrabimpchep31656YK.tif

Xyphinus krabi, male palp, prolateral view (image by YK, specimen ID: ---31656)

xyphikrabimppalp31656YK.tif

Xyphinus krabi, male palp, retrolateral view (image by YK, specimen ID: ---31656)

xyphikrabimppalr31656YK.tif

Xyphinus krabi, male palp, prolateral view (image by YK, specimen ID: ---31656)

xyphikrabimdpalp31656YK.tif

Xyphinus krabi, male palp, ventral view (image by YK, specimen ID: ---31656)

xyphikrabimdpalv31656YK.tif

Xyphinus krabi, male palp, retrolateral view (image by YK, specimen ID: ---31656)

xyphikrabimdpalr31656YK.tif


            Female (PBI_OON 31656). Total length 1.95. As in male except as noted. CEPHALOTHORAX: Carapace fovea barely visible. Sternum a pair of sclerotized impressions opposite coxae III, ending fan-like. Sickle-shaped structures extending fan-like anteriorly;. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella and tibia with row of small granules prolaterally, femur with two spine-like hairs ventrally; trichobothria tibia with three trichobothria. ABDOMEN: Pedicel scutal ridge sinuous. Epigastric scutum slightly protuding. LEGS: Leg spines absent. Trichobothria examined with Compound microscope. GENITALIA: Shape: epigastric furrow rather wide. Anterior margin of postepigastric scutum thickened. In its middle sclerotized half-circle visible with two posteriorly directed extensions leading into wide goblet-like opening. Anterior and posterior part of epigastric area lined with numerous needle-like setae. Two long setae present in epigastric scutum, directed medially.
Xyphinus krabi, female habitus, dorsal view (image by YK, specimen ID: ---31656)

xyphikrabifphabd31656YK.tif

Xyphinus krabi, female habitus, ventral view (image by YK, specimen ID: ---31656)

xyphikrabifphabv31656YK.tif

Xyphinus krabi, female habitus, lateral view (image by YK, specimen ID: ---31656)

xyphikrabifphabl31656YK.tif

Xyphinus krabi, female carapace, ventral view (image by YK, specimen ID: ---31656)

xyphikrabifpcarv31656YK.tif

Xyphinus krabi, female carapace, anterior view (image by YK, specimen ID: ---31656)

xyphikrabifpcara31656YK.tif

Xyphinus krabi, female abdomen, ventral view (image by YK, specimen ID: ---31656)

xyphikrabifpabdv31656YK.tif

Xyphinus krabi, female palp, prolateral view (image by YK, specimen ID: ---31656)

xyphikrabifppalp31656YK.tif

Xyphinus krabi, female epigynum, epigynal area, ventral view (image by YK, specimen ID: ---31656)

xyphikrabifpepiv31656YK.tif

Xyphinus krabi, female epigynum, epigynal area, ventral view (image by YK, specimen ID: ---31656)

xyphikrabifdepiv31656YK.tif

Xyphinus krabi, female epigynum, epigynal area, dorsal view (image by YK, specimen ID: ---31656)

xyphikrabifdepid31656YK.tif

 

DISTRIBUTION

THAILAND
Xyphinus krabi 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 krabi, Discover Life Map
 

MATERIAL EXAMINED
Order by:    
PBI USI Country State Division Locality Sex Type Status Elevation(m) GPS Coordinate Habitat Collection_Date Collector Inst. Code
PBI_OON 00031656  THAILAND  Krabi    Khlong Thom Distr., Khao Pra-Bang Khram Wildlife Sanctuary  1 Adult Female  Paratype  80  7.91056; 99.27778  semi-evergreen rainforest  02 Jun 2009  Peter Schwendinger  MHNG 
PBI_OON 00031658  THAILAND  Krabi    1 km E of Ao Luk Tai, Ao Luk District  1 Adult Female  Paratype  80  8.36722; 98.73805  semi-evergreen rainforest, limestone hill  09 Jun 2009  Peter Schwendinger  MHNG 
PBI_OON 00012781  THAILAND  Krabi    Khao Phanom Bencha National Park  1 Adult Male  Holotype  145  ;   evergreen rain forest  11 Oct 1999  P. Schwendinger  MHNG 
PBI_OON 00016060  THAILAND  Krabi    1 km E of Ao Luk Tai, Ao Luk District  1 Adult Female  Paratype  80  8.36722; 98.73805  semi-evergreen rainforest, limestone hill  09 Jun 2008  P. Schwendinger  MHNG 
PBI_OON 00031656  THAILAND  Krabi    Khlong Thom Distr., Khao Pra-Bang Khram Wildlife Sanctuary  1 Adult Male  Paratype  80  7.91056; 99.27778  semi-evergreen rainforest  02 Jun 2009  Peter Schwendinger  MHNG 
PBI_OON 00015433  THAILAND  Phang Nga    Khao Lak National Park, Tone Chong Fa Fall  1 Adult Female  Paratype  200  8.66666; 98.30000  primary rain forest  06 Jan 1998  A. Schultz, K. Vock  MHNG 
PBI_OON 00015433  THAILAND  Phang Nga    Khao Lak National Park, Tone Chong Fa Fall  1 Adult Male  Paratype  200  8.66666; 98.30000  primary rain forest  06 Jan 1998  A. Schultz, K. Vock  MHNG 
PBI_OON 00015905  THAILAND  Phang Nga    Ko Yao Noi, ca. 1 km N of Paradise Ko Yao Hotel  1 Adult Male  Paratype  70  8.18333; 98.64167  secondary forest, limestone hill  16 Jul 2007  Peter Schwendinger  MHNG 


 
 
 
 
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