| differentiation of mexican species of haematoloechus looss, 1899 (digenea: plagiorchiformes): molecular and morphological evidence. | molecular evidence is interpreted in the light of morphology to examine the validity of several species of haematoloechus described as mexican endemics. internal transcribed spacers 1 and 2 and 28s ribosomal genes were sequenced for 11 isolates. phylogenetic analysis of separate partitions and combined databases was conducted. results were analyzed, in the light of morphological evidence. haematoloechus macrorchis is proposed as a junior synonym of haematoloechus longiplexus. haematoloechus pulc ... | 1999 | 10577731 |