Desser S S
Department of Zoology, University of Toronto, Ontario, Canada.
J Parasitol. 2001 Feb;87(1):152-60. doi: 10.1645/0022-3395(2001)087[0152:TBPOAF]2.0.CO;2.
During May 1997, specimens of 7 species of anurans, that included 5 Phrynohyas venulosa Laurenti, 5 Rana forreri Boulenger, 7 Rana vaillanti Brucchi, 6 Eleutherodactylus fitzingeri Schimdt, 4 Smilisca baudinii Duméril and Bibron, 1 Leptodactylus melanonotus, and 3 Bufo marinus Linneaus, from the Guanacaste Conservation Area, Costa Rica were examined for blood parasites. Their hematozoan fauna included intraerythrocytic and intraleukocytic icosahedral viruses, a rickettsia (Aegyptianella sp.), 2 species of Hepatozoon, Lankesterella minima, 2 unknown species of apicomplexans, 9 morphologically distinct types of trypanosomes, and 2 species of microfilariae. Rana vaillanti, the most aquatic species of frog, harbored the most species of parasites. Recent evidence indicates that morphological changes in the highly pleomorphic trypanosomes of anurans from different geographical regions have not kept pace with biochemical (isozyme) and molecular (DNA sequence) changes. Describing new species based solely on bloodstream trypomastigotes is discouraged. Additional criteria described herein should be applied when naming new species of anuran trypanosomes.
1997年5月期间，对来自哥斯达黎加瓜纳卡斯特保护区的7种无尾目动物的样本进行了血液寄生虫检查，这些动物包括5只细纹蛙（Phrynohyas venulosa Laurenti）、5只福氏蛙（Rana forreri Boulenger）、7只瓦氏蛙（Rana vaillanti Brucchi）、6只菲氏姬蛙（Eleutherodactylus fitzingeri Schimdt）、4只鲍氏溪蟾（Smilisca baudinii Duméril and Bibron）、1只黑斑蛙（Leptodactylus melanonotus）和3只海蟾蜍（Bufo marinus Linneaus）。它们的血内寄生动物区系包括红细胞内和白细胞内的二十面体病毒、一种立克次氏体（埃及小体属（Aegyptianella sp.））、2种肝簇虫属（Hepatozoon）、微小兰氏鞭毛虫（Lankesterella minima）、2种未知的顶复门原虫、9种形态上不同类型的锥虫以及2种微丝蚴。瓦氏蛙是最水生的蛙类，体内寄生虫种类最多。最近的证据表明，来自不同地理区域的无尾目动物高度多形性锥虫的形态变化未能跟上生化（同工酶）和分子（DNA序列）变化。不鼓励仅根据血液中的锥鞭毛体来描述新物种。在命名无尾目锥虫新物种时，应应用本文所述的其他标准。
