This is the only Pacific limpet with brown tentacles. The edges of the shell are thin and easily broken. How to Distinguish from Similar Species: This is the flattest of the limpets found in this area.

Limpets are a group of aquatic snails with a conical shell shape (patelliform) and a strong, muscular foot. This general category of conical shell is known as "patelliform" (dish-shaped). [1] . Existing within the class Gastropoda, limpets are a polyphyletic group (its members descending from different immediate ancestors).

varieties in the Pacific Northwest are Ribbed limpet (Lottia digitalis), Shield limpet (Lottia pelta), Rough limpet (Lottia scabra), Mask limpet (Lottia persona), and Rough keyhole limpet (DioDora aspera).

Jan 21, 2025 · Rough Limpet intertidal north Mexico to Cape Arago, OR size to 35mm This limpet is found only at the very southern portion of the Pacific Northwes". It lives in the upper mid-intertidal to the high intertidal and prefers a horizontal surface. Its prominent ribs form a scalloped margin to the shell.

Lottia digitalis is a fairly tall limpet with the apex far forward (in the anterior 1/4 of the shell's length). In some individuals (not these) it actually overhangs the front of the shell.

The Patellogastropoda, common name true limpets and historically called the Docoglossa, are members of a major phylogenetic group of marine gastropods, treated by experts either as a clade [2] or as a taxonomic order. [3] The clade Patellogastropoda is deemed monophyletic based on phylogenetic analysis. [4]

Owl limpets are marine mollusks that make their living in the rocky intertidal by grazing on microalgae. They are the largest limpets in North America and can reach sizes up to 10 centimeters in length. The exterior of the shell is usually light brown with whitish spots.

Testudinalia testudinalis, common name the common tortoise limpet, is a species of sea snail, a true limpet, a marine gastropod mollusk in the family Lottiidae, one of the families of true limpets. [1]

Nov 13, 2017 · The Owl Limpet (Lottia gigantea) is a snail with a low-profile, white, black, and brown shell and a strong muscular foot that attaches to the rock. The inside of their shell is a shiny silver-blue, with markings that some say look like a Horned Owl, giving this limpet its name.

This large, flat limpet has a bluish-white interior with a dark apical blotch and a marginal band or spots on the inside (photo). The apex is slightly anterior to the middle and is not directed anteriorly.