Gil de Pertierra Alicia A
Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Pab. II, Ciudad Universitaria, Universidad de Buenos Aires, Argentina.
Folia Parasitol (Praha). 2002;49(1):55-66. doi: 10.14411/fp.2002.012.
The pimelodid fish Rhamdia quelen (Quoy et Gaimard, 1824) in South America harbours two species of proteocephalid cestodes, Proteocephalus bagri Holcman-Spector et Mañé-Garzón, 1988 and P. rhamdiae Holcman-Spector et Mañé-Garzón, 1988. These species are redescribed based on a detailed morphological study, supported by multivariate analysis (principal component analysis). Features distinguishing these species are: (1) the shape of proglottides, (2) the mean number of testes, (3) the topography of vitelline follicles, (4) the thickness of internal longitudinal musculature, (5) the mean number of uterine branches, (6) the ratio of cirrus pouch length to proglottis width, (7) the shape of ovary in mature and gravid proglottides and (8) the genital pore position in mature proglottides. The specific status of P. bagri and P. rhamdiae is confirmed and neotypes of both species are designated.
南美洲的油鲶科鱼类奎氏油鲶（Rhamdia quelen，由夸伊和盖马尔于1824年命名）体内寄生着两种叶形绦虫，分别是巴氏头槽绦虫（Proteocephalus bagri，由霍尔克曼-斯佩克特和马内-加尔松于1988年命名）和奎氏头槽绦虫（P. rhamdiae，由霍尔克曼-斯佩克特和马内-加尔松于1988年命名）。基于详细的形态学研究，并辅以多变量分析（主成分分析），对这些物种进行了重新描述。区分这些物种的特征包括：（1）节片的形状，（2）睾丸的平均数量，（3）卵黄滤泡的位置，（4）内部纵肌的厚度，（5）子宫分支的平均数量，（6）阴茎囊长度与节片宽度的比值，（7）成熟节片和妊娠节片中卵巢的形状，以及（8）成熟节片中生殖孔的位置。巴氏头槽绦虫和奎氏头槽绦虫的物种地位得到确认，并指定了这两个物种的新模标本。
