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

9. Pyriformis type (Fig. 37) Well-developed in size, with poorly developed musculature, acetabular cavity and with well­developed acetabular wall. Units in series d. e. c. and v. e. c. few and small in size. Muscle units of series d. i. c. and v. i. c. symmetrically spaced. M.e.c. poorly developed. Exterior longitudinal fibres moderately developed. Radial fibres weakly developed. (Valid for Clador­ chis pyriformis , Pfenderius heterocaeca. ) 10. Sandonia type (Fig. 38) Small in size, with moderately developed musculature and acetabular wall and with well-de­veloped acetabular cavity. Units in series of d.e.c. few and small in number. Units in series of v. e.c. moderately developed, sometimes situated in double rows. At the rim of the ven­tral part of acetabulum a concentration of muscle units, without forming a sphincter. D.i. c. and v. i. c. series consisting of units similar in size and arrangement. Exterior longitudinal fibres normally developed. Radial fibres moderately developed, forming loosely packed bundles. (Valid for Sandonia sudanensis. ) 11. Spinolosum type (Fig. 39) Well-developed in size, with moderately developed musculature, acetabular wall and with well-developed acetabular cavity. D. e. c. series in a single row, consisting of a great num­ber of muscle units. D. e. c. series unites with m. e. c. series. Units in series of v.e.c. few, more or less equal in size. D.i.c. and v. i.e. having units similar in size and number, form­ing continous series along the basal side of acetabulum. Exterior longitudinal fibres and radial fibres well-developed. Radial fibres well-developed, coarse, and usually irregularly arranged. (Valid for Schizamphistomoides spinolosum.) 12. Taxorchis type (Fig. 40) Enormous in size. D.e.c. is a short, single row with well-developed units. V.e.c. series consisting of a great number of units, more developed in the ventro-lateral region. Units in series of d. i. c. less in number and smaller in size than those in v. i. c. series. Exterior longitudinal fibres well-developed in dorso-lateral region. (Valid for Taxorchis schistoco- tyle.) 13. Venezuelensis type (Fig. 41) Well-developed in size, musculature more or less symmetrica] in arrangement. Units in d.e.c. series small in number with longer units in middle part. V.e.c. few and equal in size. Units in series of d. i. c. and v. i. c. similar in number and size. External longitudinal fibres strongly developed along dorsal and ventral side alike. Radial fibres strongly developed, muscle fibres forming coarse, irregularly spaced bands. (Valid for Nematophila venezue­ lensis. ) 14. Wardius type (Fig. 42) Well-developed in size, with well-developed acetabular wall and moderately developed ace­tabular cavity. Units in series of d.e.c. and v. i.e. unevenly developed; d.e.c. units much more than those in v. i. c. D.i.c. and v. i.e. series similar in number and size. External longitudinal fibres strongly developed along basal and marginal sides alike. M.e.c. series extremely long, stretching along the whole marginal side. Radial fibres strongly developed and forming irregular coarse bands. (Valid for Wardius zibethicus.) 15. Stunkardia type (Fig. 43) Moderate in size, with well-developed acetabular wall and acetabular cavity. Units in d.e.c. series numerous, evenly developed; units in v.e.c. somewhat fewer but similarly developed than those in d. e. c. Units in series of d. i. c. and v. i. c. are more or less similar in number and size. M.e.c. series absent. External longitudinal fibres well-developed. Radial fibres moderately developed and evenly distributed. Oblique fibres present in dorsal side of aceta­bulum. (Valid for Stunkardia stunkardi.)

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