Halton D W
Z Parasitenkd. 1979;61(1):1-12. doi: 10.1007/BF00927082.
The body surface of adult Diclidophora merlangi is characterized by an annular array of irregularly-shaped ridges, with the intervening troughs of tegument invested with microvilli. The microvilli measure approximately 0.5 micrometer in length and 0.06 micrometer in diameter and at maximum density (10.8/micrometer 2) increase the body surface area by a factor of two. On the anterio-dorsal surface of each peduncle the ridge-like structures consolidate as a distinct area of ornamentaltion some 100 micrometer in diameter. A frontal pit opens just inside the mouth and is thought to provide the outlet for the buccal gland secretions. The tegument surrounding the gonopore and paired excretory pores is unmodified in morphology. Presumed sensory endings are of at least two types: (1) uniciliated structures, projecting from a pit or supported by a collar of tegument, and distributed either singly over the general body surface and in the buccal cavity, or in groups around the mouth; and (2) large numbers of non-ciliated papillae localized on the opisthaptor. A number of these papillae occur on a wart-like outgrowth of tegument positioned on the ventral surface of each peduncle and have obvious significance in contact communications.
成年黑线双阴道吸虫的体表特征为有一圈不规则形状的嵴，其间的体壁凹槽处布满微绒毛。微绒毛长度约为0.5微米，直径约为0.06微米，在最大密度时（每平方微米10.8个），体表面积增加一倍。在每个柄的前背表面，嵴状结构合并成一个直径约100微米的明显装饰区域。一个额凹正好开口于口内，被认为是颊腺分泌物的出口。围绕生殖孔和成对排泄孔的体壁在形态上未发生改变。推测的感觉末梢至少有两种类型：（1）单纤毛结构，从一个凹坑中突出或由体壁的环状结构支撑，单个分布在整个体表和口腔内，或成群分布在口周围；（2）大量无纤毛乳头，位于后吸器上。其中一些乳头出现在位于每个柄腹面的体壁疣状突出物上，在接触交流中具有明显意义。
