Dr. Murai Éva szerk.: Parasitologia Hungarica 20. (Budapest, 1987)

1. Gigantheus type (Fig. 6) Anterior sphincter subterminal, transverse­oval in position. Posterior sphincter consisting of loosely packed muscle units. Interior circular units small, middle circular series moder­ately developed. Interior longitudinal fibres few, consisting of poorly developed fibres. Radi­al fibres weakly developed and unevenly distributed. Primary pharyngeal sacs shorter than the pharynx. (Valid for Stichorchis gigantheus .) 2. Onotragi type (Fig. 7) In the ariterior third of pharynx there can be seen loosely aggregated circular muscle units. Among these units a voluminous anterior sphincter can be outlined which subterminal in po­sition and an exterior circular series near to margin of pharynx. Middle circular series well­well-developed. Interior longitudinal fibres few, weakly developed. Exterior longitudinal fibres moderately developed. Interior circular series poorly developed. Basal circular units few. Lip sphincter absent. (Valid for Choerocotyloides onotragi. ) Remarks The structure of the pharynx of this species was described by PRUDHOE et al. (19 64) it has been characterized by JONES (1986) without designation of the type. 3. Olveria type (Fig. 8) This type is characterized by its having poorly developed musculature both in body of phar­ynx and primary pharyngeal sacs, and also by having well developed musculature along the whole length of oesophagus. Anterior, posterior and lip sphincters absent. Interior circular series weakly developed. Middle and exterior circular series absent. Interior longitudinal fibres absent, exterior longitudinal fibres poorly developed. Radial fibres few, weakly devel­oped, consisting of isolated fibres. Primary pharyngeal sacs longer than pharynx. (Valid for Olveria spp.) 4. Stunkardia type (Fig. 9) Anterior and posterior sphincters present, posterior sphincter larger than anterior one. Lip sphincter absent. Interior circular units small, middle circular series well-developed. Inte­rior longitudinal fibres few, poorly developed; exterior longitudinal fibres moderately devel­oped. Radial fibres poorly developed, forming loosely spaced bands. (Valid for Stunkardia diiymphosa , Allassostomo magnus .) 5. Taxorchis type (Fig. 10) Anterior sphincter present, consisting of loosely packed units. Interior circular series weak­ly developed; middle circular series composing poorly developed units. Lip sphincter and basal circular series absent. Interior longitudinal fibres few with weakly developed scatter­ed fibres. Exterior fibres moderately developed. Radial fibres moderately developed, form­ing loosely spaced bands. Primary pharyngeal sacs longer than pharynx. (Valid for Taxor­ chis schistocotyle. ) 6. Zygocotyle type (Fig. 11) Anterior sphincter present, consisting of loosely packed units. Exterior circular units well­developed and situated along anterior third of pharynx. Interior circular series impercept­able. Lip sphincter, basal and middle circular series absent. Exterior longitudinal fibres well-developed, interior longitudinal ones absent. Radial fibres absent. Obliquely running fibres, near to periphery, well-developed and exhibiting spaches of muscle bands. Primary pharyngeal sacs shorter than pharynx. (Valid for Zygocotyle lunata and Wardius zibethicus. ) 4M

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