Look at the shape of the TP and the pattern of the GT within the clitellum.
Make sure that you are looking for the TP on the ventral side of the clitellum. The TP are often found along the edges of the clitellum on the ventral side. Usually they are the same colour as the clitellum. While looking at the shape of the TP, take note of the GT pattern within the clitellum. This pattern may be easier to see than the TP bands, and it is just as useful as the TP shape for identification.
Each TP is like a pair of lobes. The 3 pairs of GT are found near the end of the clitellum on
consecutive segments.
The TP are distinct bands and they run the entire length of the clitellum.There are no GT inside the clitellum.
The TP are band shape and they only run half way up the clitellum.
The TP are long and indistinct. There are GT located before and after the clitellum.
The TP are shaped like pyramids with their points facing into the non GT segments. The
GT are on alternating segments in the clitellum.
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