Dendronotidae

Common Names

Members of the Dendronotidae family are commonly called dendronotid nudibranchs. Other names used to refer to these sea slugs include:

• Dendronotus nudibranchs
• Tree-like nudibranchs

Characteristics

Dendronotid nudibranchs exhibit a range of distinctive characteristics, including:

• Elongated bodies: Dendronotids typically have a long, slender body shape.
• Elaborate external gills: They possess branched, tree-like gills, which are usually located on the back of the body.
• Cerata: Many dendronotid species have cerata, finger-like projections on the back and sides of their bodies. These cerata often contain nematocysts, stinging cells derived from the prey they consume.
• Rhinophores: Like other nudibranchs, dendronotids have rhinophores, sensory organs on their heads that are used to detect food and chemicals in the water.
• Vibrant colors: Dendronotids are renowned for their striking color patterns, which can vary depending on the species and its environment.

Environments

Dendronotid nudibranchs are found in a variety of marine environments worldwide, including:

• Coastal waters: They are commonly observed in shallow, rocky intertidal zones and subtidal areas.
• Temperate and cold waters: Dendronotids are typically found in temperate and cold waters, with some species inhabiting subarctic regions.

Feeding Habits

Dendronotid nudibranchs are carnivorous and primarily feed on various hydroids, a group of colonial invertebrates. Some species are specialized feeders, consuming only specific types of hydroids. The stinging cells from their prey are often incorporated into the cerata of dendronotid nudibranchs, providing them with a defensive mechanism.

References

• Wikipedia: Dendronotidae
• World Register of Marine Species: Dendronotidae
• iNaturalist: Dendronotidae