Revision for “Euryhelmis monorchis” created on June 18, 2014 @ 13:00:03
| Title | Euryhelmis monorchis |
|---|---|
| Content | <p align="CENTER"><span style="color: #000000;"><span style="font-size: large;"><i><b>Euryhelmis monorchis</b></i></span></span><span style="color: #000000;"><span style="font-size: large;"><b> Ameel, 1938</b></span></span></p>
<p align="CENTER"><span style="color: #000000;"><span style="font-size: large;"><b>(Figure 2-19)</b></span></span></p>
<p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"> This trematode parasite (</span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Eury</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> = wide and </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>helmis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> = worm along with </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>monorchis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> = single testis) is a parasite of mink in North America. The worm tends to be wider (0.6 mm) than long (0.4 mm). It resembles the parasite, </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Euryhelmis squamula</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> of the European polecat, </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Putorius putorius</i></span></span><span style="color: #000000;"><span style="font-size: medium;">. The life cycle involves a fresh-water snail, </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Pomatiopsis lapidaria</i></span></span><span style="color: #000000;"><span style="font-size: medium;">, along with frogs, </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Rana clamatans, Rana pipiens,</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> and</span></span><span style="color: #000000;"><span style="font-size: medium;"><i> Rana palustris</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> as the second host (Ameel DJ. 1938. The morphology and life cycle of </span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Euryhelmis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"><i>monorchis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> n. sp. (Trematoda) from the mink. J Parasitol 24:219-224). A cat was experimentally infected with this parasite by feeding it metacercariae, and cats could perhaps become naturally infected. The eggs are operculate, undeveloped when laid, and measure 29 µm by 14 µm.</span></span></p>
<p align="JUSTIFY"><span style="color: #000000;"><span style="font-size: medium;"><b>Figure 2-19.</b></span></span><span style="color: #000000;"><span style="font-size: medium;"><i>Euryhelmis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"><i>monorchis</i></span></span><span style="color: #000000;"><span style="font-size: medium;"> from an experimentally infected white rat. THe large single dark testis can be observed on the right side of this specimen.</span></span></p> |
| Excerpt |