Conical Kelp Shell

Thalotia conica

Thalotia conica is a marine gastropod with a solid, elevated conical shell that measures between 13 mm and 23 mm in length. The shell features a pinkish or grayish white spire with a crimson apex, adorned with numerous dark reddish-brown stripes that can appear tessellated due to spiral grooves. The body whorl is dark purple, displaying pale zig-zag lines, and the aperture is rhomboidal with a thickened, crenulated outer lip. This species is found in marine environments ranging from Southwest Australia to New South Wales and Tasmania, typically inhabiting depths shallower than 40 meters, with most occurrences at depths less than 10 meters. The conical top shell is herbivorous, grazing on algae and similar organic matter. It is often encountered on rocky substrates and in kelp forests, where it blends into its surroundings. Divers may spot this species clinging to rocks or kelp, and its unique shell structure helps distinguish it from other top snails. The breeding habits of Thalotia conica are not detailed in the sources, but like many gastropods, they are likely to reproduce through external fertilization. While specific conservation information is not provided, divers should approach this species carefully to observe its behavior without causing disturbance.