Chemotaxonomic studies on davaineid tapeworms, based on amino acid analysis

Twelve amino acids were detected in six davaineid cestodes, Davainea hewetensis Dhawan & Capoor (1972) collected from one Gallus gallus domesticus L. at Allahabad, India. Chemotaxonomic studies within the family Davaineidae have shown the presence of cystine and hydroxyproline only in D. hewetensis, although phenylalanine and proline occur in all species examined previously.