Budelmann B U, Bleckmann H
Marine Biomedical Institute, University of Texas Medical Branch, Galveston 77550.
J Comp Physiol A. 1988 Nov;164(1):1-5. doi: 10.1007/BF00612711.
Many cephalopods have lines of ciliated cells on their head and arms. In the cuttlefish Sepia and the squid Lolliguncula, electrophysiological recordings clearly identify these epidermal lines as an invertebrate analogue to the mechanoreceptive lateral lines of fish and aquatic amphibians and thus as another example of convergent evolution between a sophisticated cephalopod and vertebrate sensory system. Stimulation of the epidermal lines with local water displacements, generated by a vibrating sphere, causes receptor potentials that have many features known from lateral line microphonic potentials. The minimal threshold of the head lines is 0.2 micron peak-to-peak water displacement (calculated at the skin surface) at 75-100 Hz.
许多头足类动物的头部和触须上有纤毛细胞线。在乌贼和枪乌贼中，电生理记录清楚地表明，这些表皮线是鱼类和水生两栖动物的机械感受侧线在无脊椎动物中的类似物，因此也是复杂的头足类动物和脊椎动物感觉系统趋同进化的另一个例子。用振动球产生的局部水位移刺激表皮线，会产生具有许多侧线微音电位特征的感受器电位。头部线条的最小阈值是在75 - 100赫兹时，峰峰值水位移为0.2微米（在皮肤表面计算）。
