Q.Give the location of clitellum and spermathecal openings in Lampito mauritii.

Step 1. The clitellum, the swollen glandular band used in cocoon formation, occupies segments 14 to 17 in Lampito mauritii, dividing the body into pre-clitellar (1st-13th), clitellar (14th-17th) and post-clitellar (after the 17th) regions.

Step 2. The spermathecae (seminal receptacles) that receive and store a mating partner's sperm lie internally in segments 7, 8 and 9.

Step 3. Their external openings are three pairs of small ventrolateral apertures, positioned intersegmentally - that is, in the grooves between segments rather than on the segments themselves - specifically at the 6/7, 7/8 and 8/9 grooves. …

State the exact segment span of the clitellum and the exact intersegmental grooves …

• Placing the spermathecal openings on segments themselves rather than in the grooves between segments (they are intersegmental). …