de Chambrier Alain
Muséum d'Histoire Naturelle, P.O. Box 6434, CH-1211 Geneva 6, Switzerland.
Folia Parasitol (Praha). 2003 Jun;50(2):121-7. doi: 10.14411/fp.2003.021.
Type material of the proteocephalidean cestodes Manaosia bracodemoca Woodland, 1935 and Paramonticellia itaipuensis Pavanelli et Rego, 1991 (both monotypic genera) as well as recently collected material of the latter species are redescribed. A close similarity between both species was observed: the shape of scoleces is identical, both possess a globular scolex with hidden suckers, a well-developed circular, horseshoe-shaped musculature surrounding suckers; the measurements of both taxa are also similar (scolex, suckers, young proglottides). Both cestodes possess a medullary ovary crossing the dorsal muscle layer and ending in the dorsal cortex, the testes are in the dorsal cortex and the cortical vitellarium is laterally situated. Both species parasitize the same fish host. Therefore Paramonticellia is considered a junior synonym of Manaosia and Paramonticellia itaipuensis becomes a junior synonym of Manaosia bracodemoca. An emended diagnosis of Manaosia, which is a monotypic genus, is provided.
对1935年的曼氏头槽绦虫（Manaosia bracodemoca Woodland）和1991年的伊泰普副蒙蒂绦虫（Paramonticellia itaipuensis Pavanelli et Rego）（均为单型属）的模式标本以及后者最近采集的标本进行了重新描述。观察到这两个物种之间有密切的相似性：头节形状相同，均具有带隐藏吸盘的球形头节，围绕吸盘有发育良好的圆形、马蹄形肌肉组织；两个分类单元的测量数据也相似（头节、吸盘、幼节片）。这两种绦虫都有穿过背肌层并终止于背皮层的髓质卵巢，睾丸位于背皮层，皮质卵黄腺位于侧面。这两个物种都寄生于同一种鱼类宿主。因此，副蒙蒂绦虫属被认为是曼氏头槽绦虫属的次异名，伊泰普副蒙蒂绦虫成为曼氏布氏头槽绦虫的次异名。提供了对单型属曼氏头槽绦虫属的修订诊断。
