- Spectacled Caiman - Caiman crocodilus yacare
- Spider patterned Cr MS
- Arcyria cinerea
- Stiptophyllum erubescens Madidi
- Stiptophyllum erubescens Madidi
- Tapir Tapirus terrestris
- Tapir tonio Tapirus terrestris
- Tarantula Chalalan 2014
- The case of Will & Tug
- Tremella fuciformis
- Trogia cantharelloides Madidi
- Turtle eating mushroom Coroico
- White lipped Peccary Tayassu pecari
- White-lipped Peccary Tayassu pecari
- Will Surubi “leopard” Cat fish
- Wood stork Mycteria americana
- Wood stork Tuichi
- Xerampholinoid
- Xylaria globosa
- Ramarioid Coroico 2014