Siddall Mark E, Bowerman Jay
Invertebrate Zoology, American Museum of Natural History, Central Park West, 79th Street, New York, New York 10024, USA.
J Parasitol. 2006 Aug;92(4):855-7. doi: 10.1645/GE-778R.1.
A new species of ectoparasitic glossiphoniid leech was found feeding on frogs in the Nature Center Pond and elsewhere in Deschutes County, Oregon. The new species of Placobdella resembles the southern alligator leech, Placobdella multilineata Moore, 1953, notwithstanding their vast geographic separation in North America. The new species is readily distinguished by possessing subdivided annuli, by its papillation and pigmentation patterns as well as by the arrangement of ovarian tissues. There is strong evidence of nocturnality and of the potential for parasitizing humans.
在俄勒冈州德舒特县自然中心池塘及其他地方，人们发现一种新的外寄生舌蛭科水蛭正在吸食青蛙血液。新发现的普拉科蛭属物种与南方美洲鳄蛭（Placobdella multilineata Moore，1953）相似，尽管它们在北美洲的地理分布相距甚远。该新物种通过具有细分的环带、乳突和色素沉着模式以及卵巢组织的排列很容易区分。有充分证据表明其具有夜行性且有寄生人类的可能性。
