<documentid="48C099A0B3EE7DEC8DB4FD55E0E87AEE"ID-CLB-Dataset="34733"ID-DOI="http://dx.doi.org/10.3897/zookeys.342.5948"ID-GBIF-Dataset="f734a1fa-76c7-4ab5-8193-2a56b69e00eb"ID-PMC="PMC3817425"ID-Pensoft-Pub="1313-2970-342-1"ID-PubMed="24194651"ModsDocAuthor=""ModsDocDate="2013"ModsDocID="1313-2970-342-1"ModsDocOrigin="ZooKeys 342"ModsDocTitle="On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)"checkinTime="1451246808195"checkinUser="pensoft"docAuthor="Luo, Yongting & Segers, Hendrik"docDate="2013"docId="418802056EB057D04C11C9DE3DB601B5"docLanguage="en"docName="ZooKeys 342: 1-12"docOrigin="ZooKeys 342"docSource="http://dx.doi.org/10.3897/zookeys.342.5948"docTitle="Pulchritia dorsicornuta Van Oye 1926, comb. n."docType="treatment"docVersion="6"lastPageNumber="7"masterDocId="FFD5810A474FBF4DFFFBFFB5E36FFF8B"masterDocTitle="On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)"masterLastPageNumber="12"masterPageNumber="1"pageNumber="5"updateTime="1732783234635"updateUser="ExternalLinkService">
<mods:titleid="013CAC85515C5B58C31638DC8F128010">On Pulchritia new genus, with a reappraisal of the genera of Trichotriidae (Rotifera, Monogononta)</mods:title>
(Van Oye, 1926) Neotype. Lohulu River near Bomane, DR Congo, 24 May 2010 (KM-048)") in Royal Belgian Institute of Natural Sciences, Brussels Belgium (IG32450, RIR 212).
/cm, oxygen 0.45 mg/l), both in Orientale province, DR Congo. All samples are from running water. One permanent trophi preparation, and nine permanent slides containing one, three slides containing two, and three slides containing three specimens. Deposited in RBINS and in the CSB-UK.
; male unknown): Body: Head largely retracted in trunk lorica, with two lateral stiffened elements protruding from the head aperture. A pigmented spot (eye?) present. Trunk loricate, elliptic in outline, longer than wide, dorso-ventrally compressed. Ventral and dorsal plates fused laterally and caudally, leaving a broad head aperture and a smaller foot aperture. Dorsal plate medially with two semi-longitudinal ridges forming a Y-shaped double dorsal keel, fused to a single dorsal keel terminally. Posterior of dorsal lorica with a weakly protruding rounded margin bearing two pairs of short ridges over the foot aperture. Openings of the lateral antennae in posterior third of body, about halfway between dorsal keel and lateral margin of lorica. Dorsal head aperture margin concave. Ventral plate flat, with two protruding, weakly S-shaped and diverging spines antero-laterally, these separated by a shallow U-shaped sinus. Posterior of ventral plate with a well-defined foot aperture, with rounded anterior and diverging lateral margins. Anal segment indistinct, poorly developed (also in poorly contracted specimens). Foot subterminally, consisting of a short, bilaterally constricted first and an elongate, parallel-sided second foot pseudosegment. Two long, equal toes, these mostly parallel-sided, terminating in a sharp tip.
) malleate, almost symmetrical. Fulcrum short, with a small basal plate; rami relatively flat, triangular, with rounded postero-lateral corners and short, curved alulae, inner margins with asymmetrical, protruding teeth-shaped structures. Left uncus with two large frontal and three minor dorsal webbed teeth, right with a single large frontal and four minor teeth, all minor teeth gradually reduced in size from frontal to dorsal. Manubria symmetrical, with elongate and weakly procurved shaft. Head broad, with clear ventral, median and dorsal chambers, anterior chamber with an additional rounded triangular apophysis, dorsal chamber with a recurved hook.
<bibRefCitationid="594623C817BDCFFCAEB59F8E0C596558"author="Van Oye, P"journalOrPublisher="Bulletin de la Societe zoologique de France"pageId="9"pageNumber="10"pagination="49 - 54"title="Rotateurs nouveaux du Congo Belge."volume="51"year="1926">Van Oye 1926</bibRefCitation>
com b. n. is known only from a coastal lagoon, State of Rio de Janeiro, Brazil. We hypothesize that the two represent a vicariant species pair. This is remarkable as there are few examples of such vicariant sister-taxa, possibly originating from allopatric speciation, in rotifers, and patters are blurred by their purportedly superb dispersal potential (
<bibRefCitationid="1A68A2D4296DEFDC78FDDCBB657838F0"author="Segers, H"editor="Foissner, W"journalOrPublisher="Biodiversity and Conservation"pageId="8"pageNumber="9"pagination="303 - 316"title="Diversity and endemism in Rotifera: a review, and Keratella Bory de St Vincent."volume="17"volumeTitle="Protist diversity and geographic distribution."year="2008">Segers and De Smet 2008</bibRefCitation>
<bibRefCitationid="A288886C1676B17E88C4676109F10D01"author="Pejler, B"journalOrPublisher="Archiv fuer Hdyrobiologie"pageId="8"pageNumber="9"pagination="165 - 213"title="On the global distribution of the family Brachionidae (Rotatoria)."volume="38"year="1977">Pejler 1977</bibRefCitation>
comb. n. is the presence of well-developed antero-lateral spines in the former. As we observed only negligible variability of the antero-lateral spines of
comb. n., we can neither exclude nor confirm the possibility that this feature results from phenotypic plasticity and as such would not be taxonomically relevant. Examples of such environmentally induced spine development are common in rotifers, including
<bibRefCitationid="B1865F3B1CE6B98415C74113F6429B1F"author="Gilbert, JJ"journalOrPublisher="Freshwater Biology"pageId="8"pageNumber="9"pagination="926 - 938"title="Induction of different defences by two enemies in the rotifer Keratella tropica: response priority and sensitivity to enemy density."url="10.1111/j.1365-2427.2010.02538.x"volume="56"year="2011 a">Gilbert 2011a</bibRefCitation>
<bibRefCitationid="166654357AE92AFF151F77CBA303F5A9"author="Luo, Y"journalOrPublisher="Zootaxa"pageId="8"pageNumber="9"pagination="37 - 44"title="A peculiar case of intraspecific variability in the Chinese Notholca dongtingensis (Rotifera: Monogononta: Brachionidae)."volume="3532"year="2012">Luo et al. 2012</bibRefCitation>
<bibRefCitationid="73AEA51D0852E2229C3B85CF503B269C"author="Wallace, RL"journalOrPublisher="Kenobi Productions, Gent, Belgium and Backhuys Publishers, Leiden, The Netherlands"pageId="9"pageNumber="10"title="Rotifera: Volume 1: Biology, Ecology and Systematics (2 nd Edition). Guides to the Identification of the Microinvertebrates of the Continental Waters of the World 23."year="2006">Wallace et al. 2006</bibRefCitation>
