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OONOPIDAE SPECIES DESCRIPTION
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Gamasomorpha raya       Get publication



            Male (PBI_OON 11989). Total length 2.78. CEPHALOTHORAX: Carapace orange-brown, 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 with pair of pits, posterior margin not bulging below posterior rim, anterolateral corners without extension or projections, surface of elevated portion of pars cephalica smooth, sides smooth, thorax without depressions, fovea absent, with two pairs of posterolateral tiny spikes, third, very ventral pair nearly completely absent, 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, non-marginal pars cephalica setae present in u-shaped row with a longitudinal middle-row, originating from pits; non-marginal pars thoracica setae light, needle-like; marginal setae light, needle-like. Clypeus margin slightly rebordered, straight 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, PME subequal, larger than PLE, ALE oval, PME oval, PLE circular; 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, with radial furrows between coxae I-II, II-III, III-IV, furrow with row of large pits, radial furrow opposite coxae III absent, surface smooth, covered with large round pits, microsculpture only in furrows, 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, extensions of pre-coxal triangles absent, lateral margins with indented extensions between coxae, with posterior hump, rows of rather helical than round pits; setae abundant, light, needle-like, evenly scattered, originating from small pits, without hair tufts. Mouthparts: Chelicerae, endites and labium orange-brown. Chelicerae slightly divergent, anterior face unmodified; without teeth on both promargin and retromargin; fangs without tooth-like projections, directed medially, shape normal, without prominent basal process, tip unmodified; setae light, needle-like, evenly scattered; paturon inner margin with scattered setae, distal region abruptly narrowed, posterior surface unmodified, inner margin unmodified. Labium rectangular, 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, anteromedian tip unmodified, posteromedian part unmodified, same as sternum in sclerotization. ABDOMEN: ovoid, without long posterior extension, rounded posteriorly, inter-scutal membrane rows of small sclerotized platelets absent posteriorly, abdomen long, nearly twice as long as broad (1:1,7); 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, with small, dorsolateral, triangular extensions, scuto-pedicel region with paired curved scutal ridges, scutum not extending far dorsal of pedicel, plumose hairs absent, matted setae on anterior ventral abdomen in pedicel area absent, pedicel tube ventrally ribbed. Pedicel ventrally with small hump. Scutopedicel region with an additional straight scutal ridge dorsally of paired curved scutal ridges.. 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. Epigastric scutum strongly sclerotized, surrounding pedicel, slightly protuding, small lateral sclerites absent. Postepigastric scutum strongly sclerotized, orange-brown, long, 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. Supra-anal scutum absent. 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 IV specialized hairs on ventral apex present, tibia IV ventral scopula absent, metatarsi I and II meso-apical comb absent, metatarsi III and IV weak ventral scopula absent, tibiae few specialized hairs on ventral apex of tibia III and IV with even hair-shaft and a bent, narrowing, plumose, hair tip. 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, narrow, slit-like, 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, embolus long, slender, lamellar, about as long as bulbus, split into two parts half way to distal tip into a second slightly shorter, dorsal appendage, adjacent to a third, slightly shorter, lamellar, ventral appendage, embolus-conductor-complex mesially bent in dorsal view, fitting into the continous transverse groove at anterior margin of sternum; trochanter normal size, 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 pale orange, ovoid in dorsal view, fused with bulb but with clearly defined seam between, extending beyond distal tip of bulb, plumose setae absent, without stout setae, with distal patch of setae, with thickened setae, distal patch of setae hair tips apparently linearly cut; bulb pale orange, shorter than cymbium, stout, tapering apically, conical extension unincisive.
Gamasomorpha raya, male booklung covers, lateral view (image by BE, specimen ID: ---11989)

gamasraya9mpbocl11989BE.tif

Gamasomorpha raya, male abdomen, anterior view (image by BE, specimen ID: ---11989)

gamasraya9mpabda11989BE.tif

Gamasomorpha raya, male abdomen, ventral view (image by BE, specimen ID: ---11989)

gamasraya9mpabdv11989BE.tif

Gamasomorpha raya, male carapace, anterior view (image by BE, specimen ID: ---11989)

gamasraya9mpcara11989BE.tif

Gamasomorpha raya, male carapace, dorsal view (image by BE, specimen ID: ---11989)

gamasraya9mpcard11989BE.tif

Gamasomorpha raya, male habitus, dorsal view (image by BE, specimen ID: ---11989)

gamasraya9mphabd11989BE.tif

Gamasomorpha raya, male habitus, lateral view (image by BE, specimen ID: ---11989)

gamasraya9mphabl11989BE.tif

Gamasomorpha raya, male habitus, ventral view (image by BE, specimen ID: ---11989)

gamasraya9mphabv11989BE.tif

Gamasomorpha raya, male sternum, ventral view (image by BE, specimen ID: ---11989)

gamasraya9mpstev11989BE.tif

Gamasomorpha raya, male palp, right, modified, prolateral view (image by BE, specimen ID: ---11989)

gamasraya9mpparp11989BE.tif

Gamasomorpha raya, male palp, right, modified, prolateral view (image by BE, specimen ID: ---11989)

gamasraya9mdparp11989BE.tif

Gamasomorpha raya, male embolus, ventral view (image by BE, specimen ID: ---11989)

gamasraya9mdembv11989BE.tif


            Female (PBI_OON 12827). Total length 3.50. As in male except as noted. CEPHALOTHORAX: Carapace with two pairs of posterolateral tiny spikes, third, very ventral pair nearly completely absent; non-marginal pars cephalica setae non-marginal pars cephalica setae present in u-shaped row with a longitudinal middle-row, originating from pits. Sternum rows of rather helical than round pits. Female palp claws absent; spines absent; tarsus unmodified, patella without prolateral row of ridges; trichobothria tibia with 3 trichobothria. ABDOMEN: Pedicel pedicel tube ventrally ribbed. Scutopedicel region with an additional straight scutal ridge dorsally of paired curved scutal ridges.. Postepigastric scutum not fused to epigastric scutum. LEGS: tibiae few specialized hairs on ventral apex of tibia III and IV with even hair-shaft and a bent, narrowing, plumose, hair tip. Leg spines absent. Tarsi I to IV superior claws tooth not examined in detail. Trichobothria examined with Stereo microscope. GENITALIA: Ventral view: unmodified, genital opening refers to epigastric furrow.
Gamasomorpha raya, female abdomen, anterior view (image by BE, specimen ID: ---12827)

gamasraya9fpabda12827BE.tif

Gamasomorpha raya, female abdomen, ventral view (image by BE, specimen ID: ---12827)

gamasraya9fpabdv12827BE.tif

Gamasomorpha raya, female booklung covers, lateral view (image by BE, specimen ID: ---12827)

gamasraya9fpbocl12827BE.tif

Gamasomorpha raya, female carapace, anterior view (image by BE, specimen ID: ---12827)

gamasraya9fpcara12827BE.tif

Gamasomorpha raya, female carapace, dorsal view (image by BE, specimen ID: ---12827)

gamasraya9fpcard12827BE.tif

Gamasomorpha raya, female habitus, dorsal view (image by BE, specimen ID: ---12827)

gamasraya9fphabd12827BE.tif

Gamasomorpha raya, female habitus, lateral view (image by BE, specimen ID: ---12827)

gamasraya9fphabl12827BE.tif

Gamasomorpha raya, female habitus, ventral view (image by BE, specimen ID: ---12827)

gamasraya9fphabv12827BE.tif

Gamasomorpha raya, female sternum, ventral view (image by BE, specimen ID: ---12827)

gamasraya9fpstev12827BE.tif

 

DISTRIBUTION

INDONESIA ; MALAYSIA
Gamasomorpha raya 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 00012827  INDONESIA  Riau Islands  Bintan Island  Mount Langkuas, ca. 5 km NW of Kijang  1 Adult Female  Paratype  190  0.87608; 104.57925  disturbed rainforest  22 Jun 2001  P. Schwendinger  MHNG 
PBI_OON 00011989  MALAYSIA  Kedah  Pulau Langkawi  Gunung Raya  1 Adult Male  Holotype  750  6.38333; 99.80000  disturbed rainforest  01 Jan 2005  A. Schultz  MHNG 


 
 
 
 
The American Museum of Natural History, New York, in collaboration with
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