Cong M Y, Perera de Puga G, Gutiérrez Amador A
Instituto de Medicina Tropical Pedro Kourí.
Rev Cubana Med Trop. 1995;47(3):209-10.
Morphometrics differences of 2 species of the genus Biomphalaria in Cuba (B. havanensis and B. orbignyi) were studied. These are potential intermediate hosts of schistosomiasis whose taxonomic location has been discussed. Of the variables measured the following coefficients were compared (length of the sheath of the penis/length of prepuce, caudal distance/cephalic distance, diameter of the shell/width of the shell) with the use of univariate and multivariate tests. Both tests proved that the length of the prepuce is the variable which discriminate best between both groups. These results complement other aspects which advocate for the taxonomic separation of these 2 species of planorbids [correction of plororbis].
对古巴双脐螺属的2个物种（哈瓦那双脐螺和奥比尼双脐螺）的形态测量差异进行了研究。它们是血吸虫病的潜在中间宿主，其分类地位一直存在争议。在测量的变量中，使用单变量和多变量测试比较了以下系数（阴茎鞘长度/包皮长度、尾端距离/头部距离、壳直径/壳宽度）。两种测试均证明，包皮长度是区分这两组的最佳变量。这些结果补充了其他方面的内容，支持对这两种扁卷螺进行分类分离。
