Kelletia kelletii
Kelletia kelletii
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Kelletia kelletii

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Kelletia kelletii

Kelletia kelletii, common name Kellet's whelk, is a species of large sea snail, a whelk, a marine gastropod mollusc in the whelk family Austrosiphonidae.

Kelletia kelletii is a large scavenger and predatory sea snail commonly found in subtidal kelp forests, rocky reefs, and cobble-sand interfaces at depths ranging from 2 to 70 m from Isla Asunción, Baja California, Mexico to Monterey, California, USA. It aggregates seasonally for mating and is slow-growing. It is also a recently targeted fishery species and a subject of a rapidly expanding fishery.

Kelletia kelletii is found from Isla Asunción, Baja California, Mexico, to Monterey, CA, USA. The type locality is the "Californian coast". Studies suggest that the Kellet's whelk range expanded to Monterey Bay in the 1970s or early 1980s, possibly due to an El Niño event, and is dependent on recruits from southern California.

Kelletia kelletii was discovered and described (under the name Fusus kelletii) by Manx naturalist Edward Forbes in 1850. The specific name kelletii is in honor of captain Henry Kellett, who led the scientific expedition during which these snails were collected.

Kellet's whelks are the largest buccinid gastropods found in southern California. The robust, spindle shaped, spiraled shell can reach 6.9 inches (17.5 centimeters) in length. Shells are white to tan and are often covered with encrusting organisms such as bryozoans, sponges and algae.

Kellet's whelks display sexual dimorphism with females being the larger individual in a mating pair. Females are generally sexually mature between 2.6 and 2.8 inches (6.5 and 7.0 centimeters), with males maturing at slightly smaller sizes.

Kelletia kelletii is commonly found in subtidal kelp forests, rocky reefs and cobble-sand interfaces at depths ranging from 2 to 70 m. It is a conspicuous and abundant inhabitant of the nearshore subtidal reefs off southern California.

Kelletia kelletii is a large carnivorous scavenger. It also occasionally feeds on live organisms as a predatory gastropod. As a scavenger, it appears to be attracted to almost any injured or dead animal on the sea floor. Often in subtidal areas large numbers of Kelletia kelletii have been observed moving towards and/or feeding upon one food item.

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