Colomboscia venezuelana Campos-Filho, Paoletti and Taiti, 2021
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publication ID |
https://doi.org/10.4081/tz.2021.113 |
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publication LSID |
lsid:zoobank.org:pub:43F130FD-7784-49A4-B343-0317E2397597 |
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DOI |
https://doi.org/10.5281/zenodo.15794147 |
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persistent identifier |
https://treatment.plazi.org/id/56484621-4E69-EA38-FECB-FC4EFDFFC62B |
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treatment provided by |
Felipe |
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scientific name |
Colomboscia venezuelana Campos-Filho, Paoletti and Taiti |
| status |
sp. nov. |
Colomboscia venezuelana Campos-Filho, Paoletti and Taiti View in CoL n. sp.
Figures 1-3 View Figure 1 View Figure 2 View Figure 3 , 11
urn:lsid:zoobank.org:act:C0B2021A-060C-4014-A808-34E1F2AC4D7F
Material examined
VENEZUELA: Holotype ♂ (parts in micropreparations) ( MZUF 9850 View Materials ), Parque Nacional Henri Pittier, Rancho Grande , department of Aragua, 1,400 m a.s.l., no date, leg. C. Bordon. Paratypes: 1 ♂ (parts in micropreparations), 1 ♀, 1 juv. ( MZUF 9850 View Materials ), same data as holotype ; 1 ♀ ( MZUF 9851 View Materials ), Parque Nacional Guatopo , department of Miranda, 700 m a.s.l., 7.VI.1986, leg. C. Bordon.
Description
Maximum body length: ♂ 4. 5 mm, ♀ 5. 5 mm. Colour faded after conservation in alcohol. Body ( Figure 1A,D View Figure 1 ) strongly convex with endoantennal conglobation; pereonite 1 epimera enlarged, anterior corners directed upwards slightly surpassing eyes, pereonites 2-7 subquadrangular, directed backwards; pleonites 3-5 epimera subquadrangular, continuing outline of pereonites ( Figure 1A,D,E View Figure 1 ). Dorsal surface with small rounded tubercles disposed as follows: 2+2 on cephalon, 5+5 on pereonite 1, 3+ 3 in pereonites 2-4, 2+2 on pereonites 5-7, 1+1 on pleonites 1-3; pleonites 4-5 and telson smooth ( Figure 1 View Figure 1 A-D). Noduli laterales inserted near posterior margins and at same distance from lateral margins of pereon epimera. Cephalon ( Figure 1 View Figure 1 A-C) with semicircular transverse dorsal furrow, laterally reaching median portion of eyes; frontal lobe stout, rounded, protruding frontwards and slightly depressed dorsally; lateral lobes triangular and obliquely directed outwards; frontal shield delimited superiorly by frontal line and separated from vertex; eyes laterally protruding with 13 ommatidia. Telson ( Figure 1E View Figure 1 ) with distal margin widely rounded. Antennula ( Figure 1F View Figure 1 ) of three articles, distal article conical with apical tip and two lateral aesthetascs plus apical pair. Antenna ( Figure 1G View Figure 1 ) stout, not surpassing pereonite 1 when extended backwards; flagellum of three articles, second and third articles bearing lateral aesthetascs; apical organ as long as flagellum with two short free sensilla. Mandibles with molar penicil dichotomized, consisting of about six plumose setae, left mandible ( Figure 2A View Figure 2 ) with 2+1 penicils, right mandible ( Figure 2B View Figure 2 ) with 1+1 penicils. Maxillula ( Figure 2C View Figure 2 ) inner endite with two apical plumose penicils; outer endite with 4+6 teeth, five of them apically cleft. Maxilla ( Figure 2D View Figure 2 ) with rounded lobes subequal in width, inner lobe covered with thick setae, outer lobe covered with long thin setae. Maxilliped ( Figure 2E View Figure 2 ) palp with one seta on basal article; endite subrectangular densely covered with thin setae, medial seta not surpassing distal margin, apical penicil near medial margin. Pereopods 1-7 stout, merus and carpus bearing strong setae comb-like with long sensilla on sternal margin; pereopod 1 carpus and propodus bearing transverse antennal grooming brush; dactylus of two subequal claws, simple ungual seta longer than outer claw, dactylar seta much longer than outer claw and apically plumose. Uropod ( Figure 3A View Figure 3 ) protopod subrectangular fitting gap between pleonite 5 and telson, endopod inserted proximally and bearing fringe of thin setae on outer and inner margins, exopod distally inserted, much shorter than endopod.
Male: Pereopods 1 and 7 ( Figure 3B,C View Figure 3 ) without any particular modifications. Pleopod 1 ( Figure 3D View Figure 3 ) exopod ovoid; endopod four times as long as exopod, distal part tapering and bearing row of small setae near medial margin. Pleopod 2 ( Figure 3E View Figure 3 ) exopod triangular, outer margin concave bearing one seta; endopod stout, slightly longer than exopod. Pleopod 3 and 4 exopods as in Figure 3F,G View Figure 3 . Pleopod 5 exopod ( Figure 3H View Figure 3 ) triangular with transverse fringes of thin setae, outer margin sinuous bearing one seta.
Etymology
The new species is named after Venezuela.
Remarks
At present, the genus Colomboscia comprises five species from Colombia: C. andina ( Vandel, 1972) , C. bituberculata Taiti, Allspach & Ferrara, 1995 , C. cordillierae Vandel, 1972 , C. gaigei ( Pearse, 1915) , and C. parva Schmidt, 2007 . In having the dorsal surface with rounded tubercles, Colomboscia venezuelana n. sp. is similar to C. gaigei , C. cordillierae and C. bituberculata . It differs from C. bituberculata in having more numerous and less protruding dorsal tubercles, from C. cordillierae and C. gaigei in the male pereopod 7 merus without triangular process and the shorter male pleopod 1 exopod; from C. gaigei also in the protruding frontal lobes of the cephalon. The new species is readily distinct from C. andina and C. parva which have a smooth dorsum. This is the first record of the genus for Venezuela (Figure 11).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Oniscidea |
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