Arizmendi-Espinosa M A, García-Prieto L, Guillén-Hernández S
Laboratorio de Helmintología, Instituto de Biología, Universidad Nacional Autónoma de Mexico, Ap. Postal 70-153, CP 04510, México, DF, Mexico.
J Parasitol. 2005 Feb;91(1):99-101. doi: 10.1645/GE-337R.
During January 2002, 3 specimens of an undescribed species of Oochoristica Lühe, 1898, were collected in Ctenosaura pectinata (Wiegmann, 1834) from Santa Mará Mixtequilla, Oaxaca, Mexico. Oochoristica leonregagnonae n. sp. differs from 71 of 82 species of the genus by its large number of testes (78-112 [95] vs. less than 65 per proglottid, respectively). In addition, the numerous ovarian lobes (31-79 [51]) possessed by the new species distinguish it from the other 10, with a maximum of 20 ovarian lobes. The new species differs from Oochoristica acapulcoensis Brooks, Pérez-Ponce de León and García-Prieto, 1999, which also infects C. pectinata in Mexico, by the presence of numerous staining granules throughout the parenchyma of the scolex in the latter species; likewise, testes in O. acapulcoensis reach and even overpass the excretory canals, whereas in the new species they are limited to the central region between these tubules.
2002年1月，在墨西哥瓦哈卡州圣马拉开米斯特基利亚的栉尾蜥（Ctenosaura pectinata，维格曼，1834年）体内采集到3个未描述过的鲁氏奥乔吸虫属（Oochoristica Lühe，1898年）标本。莱昂雷加尼奥纳奥乔吸虫新种（Oochoristica leonregagnonae n. sp.）与该属82个物种中的71个不同，在于其睾丸数量众多（分别为每个节片78 - 112个[平均95个]，而其他物种每个节片少于65个）。此外，新物种拥有大量卵巢叶（31 - 79个[平均51个]），这使其与其他10个物种区分开来，其他物种最多有20个卵巢叶。新物种与同样感染墨西哥栉尾蜥的阿卡普尔科奥乔吸虫（Oochoristica acapulcoensis Brooks、佩雷斯 - 庞塞·德莱昂和加西亚 - 普列托，1999年）不同，后者在头节实质中遍布大量染色颗粒；同样，阿卡普尔科奥乔吸虫的睾丸延伸至排泄管甚至超过排泄管，而新物种的睾丸局限于这些小管之间的中央区域。
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