Foreyt W J, Schell S C, Beyer J C
Department of Veterinary Microbiology and Pathology, Washington State University, Pullman 99164, USA.
J Wildl Dis. 1996 Apr;32(2):225-33. doi: 10.7589/0090-3558-32.2.225.
Prouterina wescotti gen. n. and sp. n. (Trematoda: Prouterinidae N. Fam.) is described from a free-ranging black bear (Ursus americanus) which died in May 1995 in northern Idaho (USA). Adult digenetic trematodes were detected in brain, lungs, and nasal sinuses, and were likely responsible for the emaciated condition, copious nasal discharge, neurological signs, and death of the bear. Mature trematodes recovered from the bear were conical with small spines on the tegument. The anterior end was broad and tapered gradually toward the posterior. Mean (+/-SE) size of the mature trematodes was 3.67 (+/-0.08) by 2.14 (+/-0.04) mm (n = 80). Eggs are operculated, gold, and 68.2 (+/-0.42) by 41.4 (+/-0.41) microns (n = 75). Suckers are well developed and located in the anterior half of the body, with the genital pore just posterior to the ventral sucker. Testes are tandem and the ovary is lateral and slightly anterior to the anterior testes just posterior to the ventral sucker. The uterus is predominantly anterior to the ventral sucker and is the most distinctive feature of the trematode.
韦氏普劳特吸虫，新属新种（吸虫纲：普劳特吸虫科，新科），于1995年5月在美国爱达荷州北部死亡的一只野生黑熊（美洲黑熊）体内被发现。在熊的大脑、肺和鼻窦中检测到了成虫双殖吸虫，它们可能是导致熊消瘦、大量鼻腔分泌物、神经症状以及死亡的原因。从熊体内回收的成熟吸虫呈圆锥形，体表有小刺。前端宽阔，向后逐渐变细。成熟吸虫的平均（±标准误）大小为3.67（±0.08）×2.14（±0.04）毫米（n = 80）。虫卵有卵盖，呈金黄色，大小为68.2（±0.42）×41.4（±0.41）微米（n = 75）。吸盘发育良好，位于身体前半部分，生殖孔位于腹吸盘后方。睾丸呈前后排列，卵巢位于腹吸盘后方，在前睾丸的外侧且稍靠前。子宫主要位于腹吸盘前方，这是该吸虫最显著的特征。
