Hematology

Morphology of Giant Nucleated Axolotl Erythrocytes

Morphology of axolotl (Ambystoma mexicanum) erythrocytes: giant nucleated cells with dense chromatin and an average MCV of 8000–12000 fL.

Axolotl blood smear: giant nucleated erythrocytes with dense chromatin
Axolotl blood smear: giant nucleated erythrocytes with dense chromatin

🔬Which animal has the largest erythrocytes? ❗Axolotl (Ambystoma mexicanum) erythrocytes have an average MCV of 8,000–12,000 fL.

✅Amphibian erythrocytes are nucleated. Note the highly clumped nuclear chromatin.

👉Source: Samour J. - Hawkey’s Atlas of Wild and Exotic Animal Haematology, 2020.

💡Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Amphibia Order: Urodela Family: Ambystomatidae Genus: Ambystoma Species: Ambystoma mexicanum