1. denticle The tooth-like scale of elasmobranchs; placoid scale of cartilaginous fish; also called dermal denticle.
   细鳞板鳃类的像牙齿一样鳞片;软骨鱼的盾鳞;也被称为表皮的细鳞。
2. separating An elasmobranch reproductive behavior wherein the male releases the pectoral fin of the female, setting her free (Ref. 35892).
   分开一种板鳃鱼类的生殖行为，为雄鱼放松雌鱼的胸鳍，并放它自由(参考文献35892)。
3. crossing claspers A reproductive behavior of elasmobranchs where a male overlaps both claspers until they point toward the opposite side (Ref. 51121, 51113).
   生殖交脚器具有生殖交脚器的板鳃类在生殖行为中,雄鱼利用交脚器翻转雌鱼使之腹侧相对.
4. nudge An elasmobranch reproductive behavior wherein a male moves the female from the perpendicular to the parallel position by placing his head under and in contact with the female (Ref. 51111).
   轻推板鳃类的生殖行为，一只雄鱼藉由放置它头部的位置而由垂直位至平行位以移动雌鱼，并且在下面与雌鱼接触(参考文献51111)。

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