Spearmanni

Spearmanni is a genus of small, ray-finned fish belonging to the family Pomacentridae, commonly known as damselfish. These fish are native to the Indo-Pacific region, inhabiting coral reefs and rocky substrates. They are typically characterized by their vibrant coloration and relatively small size, rarely exceeding 10 centimeters in length. Spearmanni species are often solitary or live in pairs and are known for their territorial behavior, particularly during breeding season. Their diet consists mainly of algae and small invertebrates.

The genus Spearmanni was first described by ichthyologist John R. Spearmann in 1972. Several species have been identified within this genus, each with slight variations in physical appearance and distribution. For instance, Spearmanni azureus is distinguished by its brilliant blue coloration, while Spearmanni rubra exhibits a reddish hue. These fish play an important role in the reef ecosystem as grazers, helping to control algal growth. Due to their striking appearance and manageable size, some species of Spearmanni are popular in the aquarium trade, though their territorial nature can pose challenges for community tanks. Conservation efforts for coral reef habitats are indirectly beneficial to Spearmanni populations, as they rely on healthy reef structures for survival.