Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 28. (Budapest, 1995)

T. ovis, T. crassiceps, T. solium, T. serialis, T. pisiformis, T. multiceps, T. kotlani, T. brauni and T. acinonyxi overlap as regards PCL. Three different groups can be established for the large hooks. T. taeniaeformis and T. laticollis have considerably large values of PCL. The second group consists of T. seialis, T. pisiformis, T. parenchymatosa, T. martis and T, selousi. The third - largest - group includes T. acinonyxi, T. brauni, T. hydatigena, T. kotlani, T. multiceps, T. serialis, T. solium, T. crassiceps, T. ovis and T. polyacantha. A normal distribution pattern has been found only for the small hooks of T. serialis and the large hooks of T. polyacantha (P = 0.041 and P = 0.080, respectively). Anterior chord length ACL On the basis of ACL of the small hooks, only T. parva can be well distinguished from the others. T. taeniaeformis and T. laticollis have high values with a remarkable overlap. Due to wide ranges of ACL of small hooks for the other species, no groups have been established. At the same time, the large hooks possess discriminatory features. T. ovis, T. serialis and T. brauni represent a group having small values for ACL. On the other hand, T. parva, T. taeniaeformis and T. laticollis are separated from the others by their extreme values. The hooks of T. multiceps show a normal distribution considering ACL (P = 0.096). Blade length (BL) The small hooks of T. parva can be discriminated only by BL. T. taeniaeformis and T. laticollis have large values with an overlap. Species having small and moderate values of BL are also characterized by a considerable overlap. In the case of the large hooks, T. selousi is the easiest to distinguish. The measurements of T. parva, T. taeniaeformis and T. laticollis show the same ranges. As found for the small hooks, the BL of the large hooks show an overlap among the species having small or moderate values. Basis length (BAL), Except for T. taeniaeformis, the BAL of small hooks shows a significant overlap. Perhaps the high mean values of BAL for T. parva, T. laticollis and T. martis are worthy of mention. T. selousi, T. parenchymatosa and T. regis have moderate values, while the BAL of small hooks of the other species is below 100 micrometers. The large hooks can be better differentiated by BAL than the small ones. T. taeniaeformis and T. laticollis have extremely large measurements. T. parva is between the T. taeniaeformis - T. laticollis group and the species having lower values, which are the following: T. regis with a wide range, T. pisiformis, T. parenchymatosa, T. martis and T. selousi. Species with moderate values are: T. acinonyxi, T. hydatigena, T. kotlani and T. polyacantha. T. ovis, T. crassiceps, T. solium and T. serialis seem to have short basis length considering the large hooks. Guard length (GL) Taking the guard length of small hooks into consideration, a large interlap has been generally found between the guard length of the small hooks. Only T. taeniaeformis and T. laticollis can be segregated clearly from the other species.