identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
A166879C1B07FF82D39BC6D9FD95FA44.text	A166879C1B07FF82D39BC6D9FD95FA44.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Hexangium saudii Al-Jahdali & O 2013	<div><p>Hexangium saudii sp. n.</p> <p>(Fig. 1)</p> <p>Type- host: Siganusrivulatus ForsskåletNiebuhr (Teleostei, Siganidae).</p> <p>Site: Middleintestine.</p> <p>Type- locality: RedSeaoffthecoastofRabigh (between 22°49′Nand 22°54′N), SaudiArabia. Prevalence: 8/40 fishesexamined; 20%.</p> <p>Type- material: HolotypeandparatypesaredepositedintheNaturalHistoryMu-</p> <p>seum, London, Reg. nos. 2011.8.2.1 and 2011.8.2.2–8.</p> <p>Description (Basedon 10 fullygravidspecimens): Bodylanceolateorelongate- pyri- form, stout, somewhatdorso- ventrallyflattened, 2,261 –3,551 (2,906) inlength, 648–1,019 (834) inmaximumwidthinitsposteriorthird. Tegumentarmedwithfinesharpspines dorsallyandventrally (oftenlostduringfixation). Suckersabsent. Pharynxsub-terminal, globular, welldeveloped, directlysurroundsoralopening, 152–238 × 143–225 (195 × 184). Oesophaguslong, 529–831 (680), providedwithroundoesophagealbulbatitsposterior end; bulbsmall, 74–118 (96) indiameter. Intestinalbifurcationataboutjunctionoffirstand secondthirdsofbody; caecadistinctlyshort, wide, extendintomiddlethirdofbody. Testes 2, usuallyoval, sometimesround, situatedobliquelyinposteriorregionofbody, subequal, 260–408 × 232–366 (334 × 299). Cirrussacabsent. Seminalvesicleelongate, slender, extends anteriorlyfromshortdistanceposteriortointestinalbifurcationtonearthegenitalpore, 350–568 × 42–62 (429 × 52); distalendofvesiclejoinsthatoftheuterustoformrelatively shorthermaphroditicduct. Genitalporesituatedmid- waybetweenpharynxandintestinal bifurcation. Ovaryround, median, immediatelypost-testicular, neartoposteriorextremity, 119–183 (151) indiameter. SeminalreceptacleandLaurer’scanalabsent; uterineseminalre- ceptaclepresent. Uterusrelativelylong, coiledintesticularregionandbetweentestesand intestinalcaeca, thenpassesdirectlybetweencaecatogenitalpore. Eggsoval, yellowish, thick-shelled, moderatelylarge, 56–66 × 38–46 (61 × 42). Vitellinefolliclesmoderatelylarge, arrangedin 5–7 rosette- likegroupsoneachside, extendinglateraltocaecaforalmosttheir entirelength. ExcretoryvesicleV-shaped; excretoryarmsdividenearposteriorendofeach caecum, givingriseto 3 longcollectingductsextendinganteriorlytonearlevelofgenital pore. Excretoryporedorso- subterminal.</p> <p>Comment – Hexangium GotoetOzaki, 1929 currentlyincludestwovalid species, H. sigani GotoetOzaki, 1929 and H. brayi HassanineetGibson, 2005. Thefirstisthebestknown, sinceithasbeenrecordedinnumeroussiganid species (VELAsquEz 1961, FIscHtHAL &amp; Kuntz 1964, 1965, AL-YAMAnI &amp; NAH- HAs 1981, GEEts &amp; OLLEvIEr 1996, KArDOusHA 2003, SEy etal. 2003, DzIkOwskI etal. 2003, EL-LAbADI etal. 2006), whereasthesecondisknownonlyfromits originaldescription.</p> <p>Theabovedescriptionof H. saudii sp. n. agreeswiththeconceptof Hexangium GotoetOzaki, 1929. However, itclearlydiffersfromthetwoknownspe- ciesofthegenus, beinguniqueinhavingthefollowingtwocharacters:</p> <p>− Theintestinalcaecaaredistinctlyshort, extendingonlytothemiddle thirdofthebodyandaremoredistantfromthetestes (versuslongand extendingtoclosetothetestes).</p> <p>− Thevitellinefolliclesarearrangedinrosette- likegroups (versusarranged singlywithoutacharacteristicappearance).</p> <p>However, thenewspeciesdiffersfromeachoftheothertwospeciesof thegenusinseveralotherspecificcharacteristics: from H. sigani inhaving vitellinefolliclesonlydistributedlateraltothecaeca (versusdistributedlat- eralandmedialtothecaeca) andinhavingsmallereggs (56–66 × 38–46 μm) (versus 77–85 × 50–56 μm); andfrom H. brayi inhavingadistinctlysmaller oesophagealbulb, obliquelyarrangedtestes (versussymmetricallyarranged), vitellinefolliclesdistributedlateraltothecaeca (versusconfinedtotheintercaecalfield) andsmallereggs (56–66 × 38–46 μm) (versus 70–85 × 55–60 μm). Inviewofthesespecificdifferences, thepresentspeciesisconsideredtobe newtoscience.</p> <p>Etymology: Thespecificname “ saudii ” ofthenewspeciesreferstothelocalityoffthe</p> <p>coastofSaudiArabia.</p></div> 	https://treatment.plazi.org/id/A166879C1B07FF82D39BC6D9FD95FA44	Public Domain	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.		Plazi	Al-Jahdali, O.;O, P.	Al-Jahdali, O., O, P. (2013): New Intestinal Trematodes From Siganid Fishes Off The Saudi Coast Of The Red Sea. Acta Zoologica Academiae Scientiarum Hungaricae 59 (1): 3-12, DOI: 10.5281/zenodo.5732120
A166879C1B02FF81D303C7B6FD54FAA3.text	A166879C1B02FF81D303C7B6FD54FAA3.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Progyliauchen magnacetabulum Al-Jahdali & O 2013	<div><p>Progyliauchen magnacetabulum sp. n.</p> <p>(Fig. 2)</p> <p>Type- host: S. luridus Rüppel (Teleostei, Siganidae).</p> <p>Site: Lowerintestine.</p> <p>Type- locality: RedSeaoffthecoastofRabigh (between 22°49′Nand 22°54′N), SaudiArabia. Prevalence: 12/50 fishesexamined; 24%.</p> <p>Type- material: HolotypeandparatypesaredepositedintheNaturalHistoryMu-</p> <p>seum, London, Reg. nos. 2011.8.2.1 and 2011.8.2.2–10.</p> <p>Description (Basedon 14 fullygravidspecimens): Bodyfleshy, robust, taperedan- teriorly, elongatetopyriform, 1,980 –3,200 (2,590) inlength, 610–950 (780) inmaximum widthatitsmiddle. Excretorypapillaabsent. Tegumentunspined. Oralsuckerabsent. Ventralsuckerlarge, spherical, 495–753 (624) indiameter, inmiddleofposteriorhalfof body, wellseparatedfromposteriorextremity. Pharynxelongate, 161–255 × 121–191 (208 × 156). Oesophagusverylong, relativelynarrow, highlycoiled, with 2–3 loops, longerthan bodylength, surroundedbyglandularcellsalongmostofitslength. Oesophagealbulb round, large, 198–295 × 229–323 (246 × 276). Intestinalbifurcationatbeginningofmid- dlethirdofbody; caecasimple, wide, extendintomiddlethirdofbody. Testes 2, oval, symmetrical, dorsaltoventralsucker, sub-equal, 241–383 × 177–281 (312 × 229). Cirrussac short, claviform, mainlyintercaecal, 251–383 (317) inlength, 148–230 (189) wideatitsbase, containstubularseminalvesicle (partlyexternaltocirrussac), well- developedprostatic complexandrelativelyshortejaculatoryduct; prostaticcellsextendoutsidethecirrussac tocoverexternalpartofseminalvesicle. Genitalporemedian, directlyposteriortointes- tinalbifurcation. Ovarytetra- lobed, median, anteriortoventralsuckerorbetweencaecal extremities. Seminalreceptacleoval, submedian, betweenventralsuckerandleftcaecum. Mehlis’glandwelldeveloped. Inseminationchamberlocatedbetweenovaryandoötype. Laurer’scanalopensondorsalsurfaceatlevelofventralsucker. Uterusshort, winding betweenovary, cirrussacandleftcaeum. Eggsthin-shelled, yellowish, 68–80 × 42–54 (74 × 48). Vitellinefolliclesrelativelysmall, irregular, numerous, extendalongcaecaforalmost theirentirelength. Transversevitellinecollectingductscomingfromvitellinefolliclesof eachsideopenintosmallsphericalvitellinereservoirdorsaltoanteriorborderofventral sucker. Excretoryvesicleclaviform, extendsanteriorlytonearventralsucker; excretory porepostero- terminal.</p> <p>Comment – Morphologically,theabovedescriptionof P. magnacetabulum sp. n. agreeswellwiththeconceptof Progyliauchen ShalabyetHassanine 1997, whichistodatestillendemictothe Siganus spp. intheRedSea. Although, P. magnacetabulum sp. n. and P. sigani (previously, theonlyspeciesofthegenus) arefromcloselyrelated, sympatrichostsofasimilarsize, thenewspecies clearlydiffersinsomespecificfeatures:</p> <p>− Theventralsuckerisspherical, largeandstout (495–753 μmindiameter), butin P. sigani thissuckeristransverselyelongateandmuchsmaller (188–293 × 245–372 μm).</p> <p>− Theoesophagusisverylong, highlycoiled (with 2–3 loops) andlonger thanthetotalbodylengthifstraightened, butin P. sigani theoesophagus slightlyconvolutedintolateralfoldsandmuchshorter (about 55% ofthe totalbodylength).</p> <p>− Theoesophagealbulbislarge (198–295 × 229–323 μm), butin P. sigani, thebulbismuchsmaller (130–172 μmindiameter).</p> <p>− Theseminalvesicleistubular, butin P. sigani itisconstrictedintothreeparts.</p> <p>Inviewofthesedifferences, thepresentspeciesisconsideredtobenew</p> <p>toscience.</p> <p>Etymology: Thespecificname “ magnacetabulum ” ofthenewspeciesreferstothelarge</p> <p>ventralsuckerofthenewspecies.</p> <p>*</p> <p>Acknowledgements – IamverygratefulforKingAbdulazizUniversity, SaudiArabia, forcontinuedencouragementandsupport. Ishouldalsoliketoextendmyappreciationto thestaffofRabigh- FacultyofScienceandArts, KingAbdulazizUniversity, fortheirhelp duringthecollectionofthematerial.</p></div> 	https://treatment.plazi.org/id/A166879C1B02FF81D303C7B6FD54FAA3	Public Domain	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.		Plazi	Al-Jahdali, O.;O, P.	Al-Jahdali, O., O, P. (2013): New Intestinal Trematodes From Siganid Fishes Off The Saudi Coast Of The Red Sea. Acta Zoologica Academiae Scientiarum Hungaricae 59 (1): 3-12, DOI: 10.5281/zenodo.5732120
