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OONOPIDAE SPECIES DESCRIPTION
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(Female redundant descriptions removed)
Semidysderina mulleri       Get publication



            Male (PBI_OON 15692). Total length 2.05. 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 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 granulate, sides finely reticulate, thorax without depressions, fovea absent, without radiating rows of pits; lateral margin straight, rebordered, 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 strongly rebordered, 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. Chilum undivided, small, triangular, fused to clypeus, seam present. Eyes six, well developed, all subequal, ALE oval, PME squared, 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 wider than long, pale orange, uniform, not fused to carapace, median concavity absent, with radial furrows between coxae I-II, II-III, III-IV, furrow with rows of small pits, radial furrow opposite coxae III absent, surface finely reticulate, without pits, microsculpture everywhere but front, 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, lateral margin with infra-coxal grooves and anterior and posterior openings, distance between coxae approximately equal, extensions of pre-coxal triangles absent, lateral margins with bridges to coxae, without posterior hump; setae sparse, dark, needle-like, densest laterally, originating from surface, without hair tufts. Mouthparts: Chelicerae, endites and labium pale orange. Chelicerae slightly divergent, anterior face with swelling, anterior ledge of paturon with slight tubercle on inner margin; promargin without teeth, retromargin with one tooth; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, densest medially; paturon inner margin with pairs of enlarged setae, distal region unmodified, posterior surface unmodified, promargin with row of flattened setae, inner margin unmodified, laminate groove absent. Labium triangular, not fused to sternum, anterior margin indented at middle, same as sternum in sclerotization; with 6 or more setae on anterior margin, subdistal portion with unmodified setae. Endites distally not excavated, serrula present in single row, posteromedian part unmodified, same as sternum in sclerotization, ventral process wide, rounded distally, tip directed laterally. 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, ovoid, 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, cuticular outgrowths near pedicel absent. Dorsal scutum strongly sclerotized, pale orange, without color pattern, covering more than 3/4 of abdomen, more than 1/2 to most of abdomen width, 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, pale orange, long, semicircular, covering nearly full length of abdominal length, fused to epigastric scutum, anterior margin unmodified, with short posteriorly directed lateral apodemes. Spinneret scutum absent. Dorsum setae present, dark, needle-like. Epigastric area setae uniform, dark, needle-like. Postepigastric area setae present, dark, needle-like. 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 specialized hairs on ventral apex absent, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent. Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-0-2; r0-1-1; tibiae: I v4-4-2; II v4-4-1p; metatarsi: I, II v2-2-1p. 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 small, triangular with rounded angles, situated at level of 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, relatively long, with large basal and small distal projections; trochanter minute, 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 not examined; cymbium yellow, 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, without distal patch of setae; bulb yellow, 1 to 1.5 times as long as cymbium, stout, elongated.
Semidysderina mulleri, male carapace, anterior view (image by ND, specimen ID: ---15576)

Semidmullempcara15576ND.tif

Semidysderina mulleri, male carapace, dorsal view (image by ND, specimen ID: ---15576)

Semidmullempcard15576ND.tif

Semidysderina mulleri, male endites, ventral view (image by ND, specimen ID: ---15576)

Semidmullempendv15576ND.tif

Semidysderina mulleri, male palp, prolateral view (image by ND, specimen ID: ---15576)

Semidmullemppalp15576ND.tif

Semidysderina mulleri, male palp, retrolateral view (image by ND, specimen ID: ---15576)

Semidmullemppalr15576ND.tif

Semidysderina mulleri, male palp, ventral view (image by ND, specimen ID: ---15576)

Semidmullemppalv15576ND.tif

Semidysderina mulleri, male sternum, ventral view (image by ND, specimen ID: ---15576)

Semidmullempstev15576ND.tif

Semidysderina mulleri, male embolus, prolateral view (image by ND, specimen ID: ---15576)

Semidmullemsembp15576ND.tif


            Female (PBI_OON 15603). Total length 2.43. As in male except as noted. CEPHALOTHORAX: Chilum small, triangular, fused to clypeus, seam present. Mouthparts: Chelicerae anterior ledge of paturon with slight tubercle on inner margin. Endites anteromedian tip unmodified. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges. ABDOMEN: Dorsal scutum absent. Epigastric scutum without lateral joints. Postepigastric scutum short, only around epigastric furrow, not fused to epigastric scutum. LEGS: Leg spination (only surfaces bearing spines listed, all spines longer than segment width): femora: I p0-0-2; r0-1-1; II p0-0-2; r0-1-0; tibiae: I, II v4-4-2; metatarsi: I, II v2-2-1p. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria not examined. GENITALIA: Shape: atrium relatively long, anterior margin W-shaped, projecting over atrial plate.
Semidysderina mulleri, female abdomen, lateral view (image by ND, specimen ID: ---15576)

Semidmullefpabdl15576ND.tif

Semidysderina mulleri, female abdomen, ventral view (image by ND, specimen ID: ---15576)

Semidmullefpabdv15576ND.tif

Semidysderina mulleri, female carapace, anterior view (image by ND, specimen ID: ---15576)

Semidmullefpcara15576ND.tif

Semidysderina mulleri, female epigynum, epigynal area, ventral view (image by ND, specimen ID: ---15576)

Semidmullefpepiv15576ND.jpg

Semidysderina mulleri, female internal female genitalia, dorsal view (image by ND, specimen ID: ---15576)

Semidmullefpifgd15576ND.tif

Semidysderina mulleri, female internal female genitalia, ventral view (image by ND, specimen ID: ---15576)

Semidmullefpifgv15576ND.tif

 

DISTRIBUTION

COLOMBIA
Semidysderina mulleri 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 Semidysderina mulleri, 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 00015687  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  1 Adult Female    2250  10.50000; -74.21667  bamboo, litter  24 Aug 1985  H. Muller  MHNG 
PBI_OON 00015425  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  4 Adult Female    2250  10.50000; -74.21667  bamboo, litter  22 Aug 1985  H. Muller  MHNG 
PBI_OON 00015576  COLOMBIA  Magdalena    San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Male    2200  11.11138; -74.05416  wet litter and moss  18 Aug 1985  H. Muller  MHNG 
PBI_OON 00000884  COLOMBIA  Magdalena    San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Male    2200  11.11138; -74.05416  thorn forest, moist litter  21 Aug 1985  H. Muller  MHNG 
PBI_OON 00015425  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Male    2250  10.50000; -74.21667  bamboo, litter  22 Aug 1985  H. Muller  MHNG 
PBI_OON 00015692  COLOMBIA  Magdalena    San Lorenzo, Parque Nacional Natural Sierra Nevada de Santa Marta  1 Adult Male  Holotype  2000  10.50000; -74.21667  bamboo, litter  09 Jun 1985  H. Muller  MHNG 
PBI_OON 00015705  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Male    1900  10.50000; -74.21667  moss  25 Aug 1985  H. Muller  MHNG 
PBI_OON 00015605  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  4 Adult Male    2250  10.50000; -74.21667  bamboo, litter  23 Aug 1985  H. Muller  MHNG 
PBI_OON 00015693  COLOMBIA  Magdalena    San Lorenzo, Parque Nacional Natural Sierra Nevada de Santa Marta  1 Adult Male    2000  10.50000; -74.21667  litter  09 Jun 1985  H. Muller  MHNG 
PBI_OON 00015605  COLOMBIA  Magdalena    near San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Female    2250  10.50000; -74.21667  bamboo, litter  23 Aug 1985  H. Muller  MHNG 
PBI_OON 00015603  COLOMBIA  Magdalena    San Lorenzo, northern Sierra Nevada de Santa Marta  8 Adult Male    2200  11.11138; -74.05416  litter and moss  20 Jun 1985  H. Muller  MHNG 
PBI_OON 00015576  COLOMBIA  Magdalena    San Lorenzo, northern Sierra Nevada de Santa Marta  2 Adult Female    2200  11.11138; -74.05416  wet litter and moss  18 Aug 1985  H. Muller  MHNG 


 
 
 
 
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