罫纹笋螺：Terebra maculata，软体动物门，腹足纲，狭舌目，笋螺科，笋螺属。贝壳粗壮，是本科中最大的一种。壳高90.0mm，壳宽23.5mm。螺层约18层。每一螺层的中部刻有一条细的螺沟，将壳面分为近等的上、下两部，在体螺层和次体层上螺沟则不明显。生长纹细密。壳表由淡黄色和白色相间的环带组成，并有纵走的白色线纹。每一螺层上还饰有二列深紫褐色斑块。内唇扭曲，有一明显的褶襞。

学名：Terebra maculata

Saussurea maculata: Terebra maculata, mollusca, gastropoda, stenoglossa, saussureae, saussurea. The seashells are sturdy, which is the largest one in the undergraduate course. The shell is 90.0mm high and 23.5mm wide. The spiral layer is about 18 layers. A thin spiral groove is carved in the middle of each spiral layer, which divides the shell surface into near equal upper and lower parts. The spiral groove is not obvious on the body layer and secondary body layer. The growth lines are fine and dense. The shell surface is composed of light yellow and white bands, and there are longitudinal white lines. Each spiral layer is also decorated with two rows of dark purple brown patches. The inner lip is twisted with an obvious fold.