| macroderoides texanus n. sp. (digenea: macroderoididae) from alligator gar, atractosteus spatula in texas. | macroderoides texanus n. sp. is described based on 16 specimens collected from the intestine of the north american alligator gar, atractosteus spatula. of the five established species of macroderoides, the new species is morphologically most similar to macroderoides spiniferus and macroderoides trilobatus. m. texanus n. sp. differs from m. spiniferus by having the ovary situated immediately posterior to the cirrus sac rather than at mid-way between the cirrus sac and anterior testis, the ventral ... | 2008 | 18762983 |