de Pertierra Alicia A Gil
Laboratorio de Helmintología, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Buenos Aires, Argentina.
Mem Inst Oswaldo Cruz. 2003 Apr;98(3):345-51. doi: 10.1590/s0074-02762003000300009. Epub 2003 Jul 18.
Nomimoscolex guillermoi n. sp. and N. dechambrieri n. sp. are described from the gymnotiform fish Gymnotus carapo from Argentina. The new species are placed into Nomimoscolex based on the cortical position of the vitelline follicles, and medullary position of the testes, ovary, and uterus. Both species were compared to the 13 species considered valid in the genus. The combination of features distinguishing N. guillermoi from N. dechambrieri is (1) the position of the vagina to cirrus pouch (anterior or posterior vs always anterior respectively), (2) the total number of testes (41-85 vs 108-130 respectively), (3) the distribution of the vitelline follicles (arranged in dorso-lateral and ventro-lateral bands vs lateral bands respectively), (4) the length of the uteroduct (ending 58% vs 35% from posterior margin of mature proglottis respectively), and (5) the presence of gland cells in the scolex (unicellular glands in the apical region and the external margin of suckers vs the presence of unicellular glands in the apex and other grouped in a cluster medially to the suckers respectively).
吉氏诺米莫绦虫(Nomimoscolex guillermoi)新种和德尚布里诺米莫绦虫(N. dechambrieri)新种是从阿根廷的裸背电鳗目鱼类裸背电鳗(Gymnotus carapo)中描述的。基于卵黄滤泡的皮质位置以及睾丸、卵巢和子宫的髓质位置,将这两个新物种归入诺米莫绦虫属。将这两个物种与该属中被认为有效的13个物种进行了比较。区分吉氏诺米莫绦虫和德尚布里诺米莫绦虫的特征组合为:(1)阴道与阴茎囊的位置关系(分别为位于阴茎囊前方或后方与始终位于阴茎囊前方),(2)睾丸总数(分别为41 - 85个与108 - 130个),(3)卵黄滤泡的分布(分别排列成背侧和腹侧带与侧带),(4)子宫管的长度(分别在成熟节片后缘的58%处与35%处结束),以及(5)头节中腺细胞的存在情况(吸盘顶端区域和外缘有单细胞腺与吸盘顶端有单细胞腺且其他腺细胞聚集在吸盘内侧分别)。