On four new species of cercariae. A contribution to Sewell's evolutionary scheme

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Abstract
1. Two new species of Xiphidiocercariae have been described. These two forms have been designated as C. lühei and C. gopyjungi.2. The flame-cell formula of C. lüheiis 2 × 3 × 3 = 18 and that of C. gopyjungi is 2 × 4 × 3 = 24.3. It is shown that C. gopyjungi has the characters of both the subgroups Polyadena (Cort) and Daswan (Sewell), and the group Cercariae armatae is redefined.4. Further, two new species of furcocercous cercariae have been described. They have been designated as C. ajmeri and C. anasagari.5. It has been pointed out that the types of excretory systems as met with in C. ajmeri and C. anasagari are of extreme importance from the evolutionary point of view and fill in gaps in Sewell's (1930) evolutionary scheme.6. The latter two species have been listed in their proper position in Miller's (1926) scheme of classification of the furcocercous cercariae.

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