Indian Tertiary and post-Tertiary Vertebrata. Calcutta, Geological Survey Office, 1874-1902. India, paleontology, vertebrates, fossil, The illustration showcases various specimen drawings of cephalopods, specifically focusing on the anatomical features of octopuses and squid. Each detailed depiction highlights the intricate morphology, including tentacle structure, suckers, and unique body shapes. The images are labeled for scientific reference, indicating different species and their distinguishing characteristics. This collection serves as an educational resource, emphasizing the diversity and complexity of these fascinating marine creatures.