<documentid="3DB5B8A3477149A70CB155CFBF83DC96"ID-CLB-Dataset="5405"ID-DOI="10.1111/j.1096-3642.2005.00157.x"ID-GBIF-Dataset="325dac8f-456b-40e6-ad34-1328a2273d61"ID-ISSN="0024-4082"ID-Zenodo-Dep="4634680"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.tables_approvedBy="jonas"IM.taxonomicNames_approvedBy="admin"IM.treatments_approvedBy="felipe"checkinTime="1616618573436"checkinUser="carolina"docAuthor="Noreña, Carolina, Damborenea, Cristina & Brusa, Francisco"docDate="2005"docId="8C6887DA307EC47CFF91A291D3FDAF51"docLanguage="en"docName="ZoolJLinnSoc.144.37-58.pdf"docOrigin="Zoological Journal of the Linnean Society 144 (1)"docSource="https://academic.oup.com/zoolinnean/article-lookup/doi/10.1111/j.1096-3642.2005.00157.x"docStyle="DocumentStyle:0DD8C314D74634CE09062A86991413F8.2:ZoolJLinnSoc.2002-2009.journal_article"docStyleId="0DD8C314D74634CE09062A86991413F8"docStyleName="ZoolJLinnSoc.2002-2009.journal_article"docStyleVersion="2"docTitle="Stenostomum amphotum Marcus 1945"docType="treatment"docVersion="8"lastPageNumber="41"masterDocId="7051FFA2307AC478FF1FA450D771AA19"masterDocTitle="A taxonomic revision of South American species of the genus Stenostomum O. Schmidt (Platyhelminthes: Catenulida) based on morphological characters"masterLastPageNumber="58"masterPageNumber="37"pageNumber="41"updateTime="1720302426071"updateUser="admin"zenodo-license-document="CC-BY-4.0"zenodo-license-figures="CC-BY-4.0">
<mods:titleid="139A9A028A365127F6DCBA21F67902EB">A taxonomic revision of South American species of the genus Stenostomum O. Schmidt (Platyhelminthes: Catenulida) based on morphological characters</mods:title>
<figureCitationid="9CFA2A49307EC47CFD4EA291D5D0ACCE"box="[593,673,1729,1751]"captionStart="Figure 1"captionStartId="5.[162,240,1880,1899]"captionTargetBox="[172,1436,200,1845]"captionTargetId="figure-56@5.[169,1436,196,1847]"captionTargetPageId="5"captionText="Figure 1. A, Stenostomum amphotum. B, S. arevaloi. C, S. bicaudatum. D, S. ciliatum. E, S. cryptops. Scale bars = 200 Mm."figureDoi="http://doi.org/10.5281/zenodo.4634682"httpUri="https://zenodo.org/record/4634682/files/figure.png"pageId="4"pageNumber="41">Fig. 1A</figureCitation>
long. Chains of up to nine zooids, with different degree of development. Elongated body, with dorso-lateral ciliated pits, anterior end slightly tapering. With constriction at the level of the oral pore. Posterior end with intestine-lacking region. Homogeneous ciliated epithelium without longer sensory cilia. Sparse small rhabdites on the ventral surface. Colour in life whitish.
Cerebral ganglia with deeply dentate anterior brain lobes and a pair of internal lobes associated with the posterior ones (trilobate brain after
<bibRefCitationid="60504B3D307EC47CFBCBA52CD2F3AB8B"author="Marcus E"box="[1236,1410,380,402]"pageId="4"pageNumber="41"pagination="3 - 133"refId="ref16000"refString="Marcus E. 1945 a. Sobre Catenulida brasileiros. Boletins da Facultade de Filosofia, Ciencias e Letras Zoologia 10: 3 - 133."type="journal article"year="1945">Marcus, 1945a</bibRefCitation>
). Two light-refracting bodies, with more than ten spherical corpuscles (
b) laterally in the posterior half of the pharynx. Transition between pharynx and intestine regulated by a muscular sphincter. Intestine with excretophores. Nephridiopore opens at the posterior intestine-lacking region.
<bibRefCitationid="60504B3D307EC47CFCDCA779D31FA926"author="Marcus E"box="[963,1134,809,831]"pageId="4"pageNumber="41"pagination="1 - 74"refId="ref16026"refString="Marcus E. 1945 b. Sobre Microturbelarios do Brasil. Comunicaciones Zoologicas del Museo de Historia Natural de Montevideo 1 (25): 1 - 74. Est I - XI."type="journal article"year="1945">Marcus, 1945b</bibRefCitation>
). Los Talas, Berisso,
<collectingRegionid="C605F82E307EC47CFA47A77AD4E1A947"country="Argentina"name="Ciudad Autonoma de Buenos Aires"pageId="4"pageNumber="41">Buenos Aires</collectingRegion>
<bibRefCitationid="60504B3D307EC47CFCBAA06DD3E4AE4B"author="de Beauchamp P"box="[933,1173,1085,1107]"pageId="4"pageNumber="41"pagination="37 - 47"refId="ref15089"refString="de Beauchamp P. 1948. Sur les Turbellaries du genre Stenostomum. Bulletin de la Societe Zoologique de France 73: 37 - 47."type="journal article"year="1948">de Beauchamp, 1948</bibRefCitation>
;
<bibRefCitationid="60504B3D307EC47CFBBEA06DD247AE4A"author="Luther A"box="[1185,1334,1085,1107]"pageId="4"pageNumber="41"pagination="1 - 155"refId="ref15983"refString="Luther A. 1960. Die Turbellarien Ostfennoskandiens. Fauna Fennica 7: 1 - 155."type="journal article"year="1960">Luther, 1960</bibRefCitation>
), owing to the difficulty in recognizing differences in the arrangement of the pharyngeal glands. The
and arrangement of the pharyngeal glands and the layout of the rhabdites, the number of brain lobes, and the sphincter between pharynx and intestine, are enough to separate both species. On the other hand, a cladistic analysis (our unpubl. data) confirms the independence of
