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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Aposphragisma sepilok       Get publication



            Male (PBI_OON00012112). Total length 1.39. CEPHALOTHORAX: Carapace pale orange, without any pattern, ovoid in dorsal view, pars cephalica slightly elevated in lateral view, anteriorly narrowed to 0.49 times its maximum width or less, with rounded 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 granulate, thorax without depressions, fovea absent, sluice restricted to posterior margin, 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 in u-shaped row, setae arranged in a long u-shaped row reaching posterior edge of pars cephalica; each setae originating from the middle of a pitlike structure with partly swollen edges, especially pronounced at posterior edge of pars cephalica, where hair bases may appear denticle-like; non-marginal pars thoracica setae light, needle-like, few setae on carapace sides, very scattered; marginal setae light, needle-like, denticles at carapace margin represent modified hair bases; setae originating from anterior base of denticles, pointing anteriorly. Clypeus 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, a pair of long, needle-like setae on each half of the clypeus, with the inner ones being longer than the outer ones. Chilum absent. Eyes six, reduced, tiny, pLE and PME about equal in size, tiny, ALE largest, all eyes oval; 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 separated by their radius to diameter, PLE-PME separated by less than PME radius. Sternum longer than wide, pale orange, uniform, fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture everywhere but middle, sickle-shaped structures absent, anterior margin with continuous transverse groove, posterior margin extending posteriorly beyond anterior edges of coxae IV as single extension, anterior corner unmodified, distance between coxae approximately equal, lateral margins unmodified, without posterior hump, radial furrows between coxae I-II, II-III and III-IV only very weakly developed, rather appearing as indentions of sternum margin; sternum microsculptures lobed ("blossoms"); sternum surface setae originating from middle of microsculptures and from sternum edge; setae abundant, light, needle-like, evenly scattered, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae straight, inner margin of anterior face distally with small toothlike projection; promargin without teeth; fangs without tooth-like projections, directed posteriorly, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon distal region unmodified, promargin with row of flattened setae, inner margin unmodified. Labium triangular, fused to sternum, anterior margin deeply incised, same as sternum in sclerotization; subdistal portion with unmodified setae, ventral surface with 5 needle-like setae: two distal setae (one on each side of labium incision) and a transverse line of 3 subdistal/more proximal setae. Endites distally not excavated, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization, outer margin with a pair of long needle-like setae with tips curved inwards. 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, slightly more brownish in colour than rest of scutum, pear-shaped (sides slightly concave), about 3x longer than wide. Posterior spiracles connected by groove. Pedicel tube short, ribbed, scuto-pedicel region with widely oval scutal ridge, scutum not extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent. 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 without projecting denticles, surface smooth, but bases of setae appearing pitlike, giving a punctate impression. 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, with long 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 long 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, patella plus tibia I shorter than carapace, tibia I unmodified, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent , metatarsi III and IV weak ventral scopula absent, femora in dorsal view: femur IV recurved, femora I-II procurved, femur III very slightly procurved, tibiae tibia III & IV with a cluster of special hairs on ventral apex, metatarsi metatarsi III & IV with a cluster of dagger like hairs on ventral apex with serrated lateral margins; dorsal apex of metatarsi I-IV each with a small, shieldlike appendage. 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, oval, situated between anterior and posterior spiracles, rebordered; furrow without omega-shaped insertions, without setae. Palp normal size, not strongly sclerotized, right and left palps symmetrical, proximal segments pale orange; embolus dark, prolateral excavation absent; trochanter unmodified; femur normal size, two or more times as long as trochanter, without posteriorly rounded lateral dilation, attaching to patella basally; patella shorter than femur, not enlarged, without prolateral row of ridges, setae unmodified; tibia trichobothria with 3 trichobothria; cymbium ovoid in dorsal view, fused with bulb but with clearly defined seam between, not extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae; bulb 1 to 1.5 times as long as cymbium, stout, tapering apically, distal part male palp "gamasomorphic"; bulb anterodorsally with conical extension, distally with two appendages (the more dorsal embolus and a more ventral conductor): embolus dark, lamellar, more than half as long as bulb; conductor tapering towards rounded tip, about as long as embolus; embolus-conductor-complex mesially bent in dorsal view, fitting into the continuous transverse groove at anterior margin of sternum.
Aposphragisma sepilok, male abdomen, anterior view (image by MT, specimen ID: ---12112)

apospsepilmpabda12112MT.tif

Aposphragisma sepilok, male abdomen, dorsal view (image by MT, specimen ID: ---12112)

apospsepilmpabdd12112MT.tif

Aposphragisma sepilok, male abdomen, posterior view (image by MT, specimen ID: ---12112)

apospsepilmpabdT12112MT.tif

Aposphragisma sepilok, male abdomen, lateral view (image by MT, specimen ID: ---12112)

apospsepilmpabdl12112MT.tif

Aposphragisma sepilok, male abdomen, ventral view (image by MT, specimen ID: ---12112)

apospsepilmpabdv12112MT.tif

Aposphragisma sepilok, male carapace, anterior view (image by MT, specimen ID: ---12112)

apospsepilmpcara12112MT.tif

Aposphragisma sepilok, male carapace, dorsal view (image by MT, specimen ID: ---12112)

apospsepilmpcard12112MT.tif

Aposphragisma sepilok, male carapace, lateral view (image by MT, specimen ID: ---12112)

apospsepilmpcarl12112MT.tif

Aposphragisma sepilok, male carapace, posterior view (image by MT, specimen ID: ---12112)

apospsepilmpcarT12112MT.tif

Aposphragisma sepilok, male chelicerae, anterior view (image by MT, specimen ID: ---12112)

apospsepilmpchea12112MT.tif

Aposphragisma sepilok, male spinnerets, posterior view (image by MT, specimen ID: ---12112)

apospsepilmpspiT12112MT.tif

Aposphragisma sepilok, male sternum, ventral view (image by MT, specimen ID: ---12112)

apospsepilmpstev12112MT.tif

Aposphragisma sepilok, male palp, prolateral view (image by MT, specimen ID: ---12112)

apospsepilmppalp12112MT.tif


            Female (PBI_OON00012112). Total length 1.54. As in male except as noted. CEPHALOTHORAX: Carapace sluice restricted to posterior margin; non-marginal pars cephalica setae setae arranged in a long u-shaped row reaching posterior edge of pars cephalica; each setae originating from the middle of a pitlike structure with partly swollen edges, especially pronounced at posterior edge of pars cephalica, where hair bases may appear denticle-like; non-marginal pars thoracica setae few setae on carapace sides, very scattered; marginal setae denticles at carapace margin represent modified hair bases, setae originating from anterior base of denticles, pointing anteriorly. Clypeus setae a pair of long, needle-like setae on each half of the clypeus, with the inner ones being longer than the outer ones. Eyes pLE and PME about equal in size, tiny; PME separated by less than their radius. Sternum radial furrows between coxae I-II, II-III and III-IV only very weakly developed, rather appearing as indentions of sternum margin; sternum microsculptures lobed ("blossoms"); sternum surface setae originating from middle of microsculptures and from sternum edge. Mouthparts: Chelicerae inner margin of anterior face distally without small toothlike projection (see male). Labium ventral surface with 5 needle-like setae: two distal setae (one on each side of labium incision) and a transverse line of 3 subdistal/more proximal setae. Endites outer margin with a pair of long needle-like setae with tips curved inwards. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Book lung covers about same colour as rest of scutum, rather pear-shaped, about 3x longer than wide. Pedicel scutal ridge only weak. Dorsal scutum surface smooth, but bases of setae appearing pitlike, giving a punctate impression. Epigastric scutum without lateral joints, posterolateral part with single, curved u-shaped ridge. Postepigastric scutum not fused to epigastric scutum, with short posteriorly directed lateral apodemes. LEGS: femora in dorsal view: femur IV recurved, femora I-II procurved, femur III very slightly procurved, tibiae tibia III & IV with a cluster of special hairs on ventral apex, metatarsi metatarsi III & IV with a cluster of dagger like hairs on ventral apex with serrated lateral margins; dorsal apex of metatarsi I-IV each with a small, shieldlike appendage. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Compound microscope.
Aposphragisma sepilok, female abdomen, lateral view (image by MT, specimen ID: ---12112)

apospsepilfpabdl12112MT.tif

Aposphragisma sepilok, female abdomen, anterior view (image by MT, specimen ID: ---12112)

apospsepilfpabda12112MT.tif

Aposphragisma sepilok, female abdomen, dorsal view (image by MT, specimen ID: ---12112)

apospsepilfpabdd12112MT.tif

Aposphragisma sepilok, female abdomen, posterior view (image by MT, specimen ID: ---12112)

apospsepilfpabdT12112MT.tif

Aposphragisma sepilok, female abdomen, ventral view (image by MT, specimen ID: ---12112)

apospsepilfpabdv12112MT.tif

Aposphragisma sepilok, female carapace, dorsal view (image by MT, specimen ID: ---12112)

apospsepilfpcard12112MT.tif

Aposphragisma sepilok, female carapace, lateral view (image by MT, specimen ID: ---12112)

apospsepilfpcarl12112MT.tif

Aposphragisma sepilok, female carapace, anterior view (image by MT, specimen ID: ---12112)

apospsepilfpcara12112MT.tif

Aposphragisma sepilok, female carapace, posterior view (image by MT, specimen ID: ---12112)

apospsepilfpcarT12112MT.tif

Aposphragisma sepilok, female sternum, ventral view (image by MT, specimen ID: ---12112)

apospsepilfpstev12112MT.tif

 

DISTRIBUTION

MALAYSIA
Aposphragisma sepilok coordinates
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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 00015274  MALAYSIA  Sabah    Sandakan Bay (NW) Sepilok For. Res.  1 Adult Female  Paratype    5.81061; 117.96171    12 Mar 1983  B. Hauser  MHNG 
PBI_OON 00031409  MALAYSIA  Sabah    Sandakan Residency, 15 miles de Sandakan, Sepilok  1 Adult Female  Paratype    5.83333; 117.93333    23 Apr 1982  B. Hauser  MHNG 
PBI_OON 00012112  MALAYSIA  Sabah    Sandakan Residency, 15 miles de Sandakan, Sepilok  1 Adult Male  Holotype    5.83333; 117.93333    23 Apr 1982  B. Hauser  MHNG 


 
 
 
 
The American Museum of Natural History, New York, in collaboration with
The California Academy of Sciences, San Francisco   The University of California, Berkeley
The Field Museum of Natural History, Chicago   George Washington University, Washington DC
 
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