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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Xyphinus montanus Deeleman-Reinhold, 1987       Get publication


Xyphinus montanus Deeleman-Reinhold, 1987: 53, f. 40-43 (Dm).

            Male (PBI_OON 31939). Total length 2.04. CEPHALOTHORAX: Carapace pale orange, without any pattern, broadly oval in dorsal view, pars cephalica domed 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 without extension or projections, posterolateral surface without spikes, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea present, 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 light, needle-like; marginal setae light, needle-like. Clypeus margin unmodified, straight in front view, vertical in lateral view, high, ALE separated from edge of carapace by their radius or more, median projection absent, with two pairs of anteriorly directed, needle-like hairs; setae present, light, needle-like. Chilum absent. Eyes six, well developed, PME largest, ALE circular, PME oval, PLE circular; posterior eye row straight 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 as long as wide, pale orange, 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 punctuate, 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; 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 posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon inner margin with scattered setae, distal region 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, same as sternum in sclerotization, posteromedian part slightly sclerotized, backwards folded ridge appears as half-moon, endites distally bulging. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly, frontally narrowed, overlapping carapace, almost reaching highest point of carapace. Book lung covers large, elliptical, without setae, anterolateral edge unmodified. Posterior spiracles connected by groove. Pedicel tube long, ribbed, scuto-pedicel region with widely oval scutal ridge, scutum extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, with four scutal ridges, the one closest to the pedicel is W-shaped, the three others are straight and slightly elevated in the middle. These elevations each bear a pair of long needle-like setae, directed anteriorly. Dorsal scutum strongly sclerotized, pale orange, 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 with projecting denticles, dorsal scutum embedding narrow tip of abdomen. Denticles on abdomen, dorsal scutum are very small.. Epigastric scutum strongly sclerotized, surrounding pedicel, not protruding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, pale orange, long, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, without posteriorly directed lateral apodemes. Spinneret scutum destroyed, details not visible. Dorsum setae present, light, needle-like, abdomen densely covered with very short, needle-like setae. Epigastric area setae uniform, light, needle-like. Postepigastric area setae present, light, needle-like. Dense patch of setae anterior to spinnerets absent. LEGS: pale orange, without color pattern; femur IV not thickened, same size as femora I-III, patella plus tibia I shorter than carapace. Tarsi I to IV superior claws tooth not examined in detail. Tarsi I to IV without inferior claw. Trichobothria not examined. 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, one to two times as long as trochanter, attaching to patella basally; patella about as long as femur, not enlarged; tibia with two slightly thicker and longer hairs prolaterally, trichobothria with 3 trichobothria; cymbium pale orange, ovoid in dorsal view, not fused with bulb, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, without distal patch of setae; bulb pale orange, 1 to 1.5 times as long as cymbium, stout, spherical, distal part distal part of bulb with several dark, but transparent, plate-like apophyses, one bifid.
Xyphinus montanus, male habitus, dorsal view (image by YK, specimen ID: ---31939)

Xyphimontamphabd31939YK.tif

Xyphinus montanus, male habitus, ventral view (image by YK, specimen ID: ---31939)

Xyphimontamphabv31939YK.tif

Xyphinus montanus, male habitus, lateral view (image by YK, specimen ID: ---31939)

Xyphimontamphabl31939YK.tif

Xyphinus montanus, male carapace, dorsal view (image by YK, specimen ID: ---31939)

Xyphimontampcard31939YK.tif

Xyphinus montanus, male carapace, ventral view (image by YK, specimen ID: ---31939)

Xyphimontampcarv31939YK.tif

Xyphinus montanus, male carapace, lateral view (image by YK, specimen ID: ---31939)

Xyphimontampcarl31939YK.tif

Xyphinus montanus, male carapace, anterior view (image by YK, specimen ID: ---31939)

Xyphimontampcara31939YK.tif

Xyphinus montanus, male abdomen, dorsal view (image by YK, specimen ID: ---31939)

Xyphimontampabdd31939YK.tif

Xyphinus montanus, male abdomen, ventral view (image by YK, specimen ID: ---31939)

Xyphimontampabdv31939YK.tif

Xyphinus montanus, male abdomen, lateral view (image by YK, specimen ID: ---31939)

Xyphimontampabdl31939YK.tif

Xyphinus montanus, male palp, prolateral view (image by YK, specimen ID: ---31939)

Xyphimontamppalp31939YK.tif

Xyphinus montanus, male palp, retrolateral view (image by YK, specimen ID: ---31939)

Xyphimontamppalr31939YK.tif

Xyphinus montanus, male palp, prolateral view (image by YK, specimen ID: ---31939)

Xyphimontamdpalp31939YK.tif

Xyphinus montanus, male palp, retrolateral view (image by YK, specimen ID: ---31939)

Xyphimontamdpalr31939YK.tif

Xyphinus montanus, male palp, ventral view (image by YK, specimen ID: ---31393)

Xyphimontamdpalv31393YK.tif

 

DISTRIBUTION

INDONESIA ; MALAYSIA
Xyphinus montanus 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 montanus, 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 00031942  INDONESIA  Kalimantan Tengah    Kahantan  2 Adult Male      -2.03333; 112.66666  swampy primary forest  02 Sept 1985  Suh. Djojosudharmo  RMNH 
PBI_OON 00031944  MALAYSIA  Sabah    Mt. Kinabalu  1 Adult Male    1550  6.08333; 116.55000  swampy primary forest  23 Jul 1980  C.L. Deeleman and P.R. Deeleman  RMNH 
PBI_OON 00031939  MALAYSIA  Sarawak    Matang Reserve, Mount Serapi  1 Adult Male  Holotype  400  ;   primary forest, litter  25 Mar 1985  C.L. Deeleman and P.R. Deeleman  RMNH 


 
 
 
 
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This material is based upon work supported by the National Science Foundation under Grant No. DEB 0613754. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
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