This 3D model showcases the digestive system of a leech (Class Hirudinea), created for educational and anatomical visualization. It accurately represents the alimentary canal, highlighting the structural adaptations of blood-feeding annelids such as Hirudinaria granulosa. The model includes the mouth and muscular pharynx, followed by a short oesophagus leading into a large crop with paired lateral caeca, specialized for food storage. Posteriorly, the intestine, rectum, and dorsal anus are shown in correct anatomical position. The system is color-coded and proportionally arranged for easy identification of each part. Optimized for interactive viewing, this model is suitable for school biology, undergraduate zoology, virtual labs, and anatomy demonstrations. 🔍 Key structures: Mouth • Pharynx • Oesophagus • Crop with caeca • Intestine • Rectum • Anus