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The western brook lamprey (Lampetra richardsoni) is a small (<18 cm), widely distributed, non-parasitic species of jawless fish endemic to the freshwater coastal waterways of the Western United States and Canada. [4]
An extensive list of the freshwater fish found in California, including both native and introduced species. [1] ... Western Brook Lamprey: Lampetra ricchardsoni:
Northern brook lampreys are jawless fishes, also known as cyclostomes.Northern brook lamprey are considered non-parasitic lamprey. [5] They have poorly developed teeth and a round, disc-like, subterminal mouth, called an oral-disc, for suction.
California's Fish and Game Commission voted to consider listing white sturgeon, the largest freshwater fish in North America, as a threatened species.
[4] [3] It can survive in both marine surface waters and freshwater lakes, rivers, and creeks. In freshwater, it is found typically in the lower portions of large river systems. [5] It is a predatory fish and feeds on fishes in the size range of 10–30 cm. It feeds by attaching to prey using its round, sucker-like mouth. [6]
The fish spotted by oceangoers on August 10 was 12 feet long, according to the institution. The fish had already died at the time of the discovery, and was found near the shores of La Jolla Cove.
The Piscicolidae are a family of jawless leeches in the order Rhynchobdellida that are parasitic on fish. They occur in both freshwater and seawater, have cylindrical bodies, and typically have a large, bell-shaped, anterior sucker with which they cling to their host. [3]
Cyclostomi, often referred to as Cyclostomata / s ɪ k l oʊ ˈ s t ɒ m ə t ə /, is a group of vertebrates that comprises the living jawless fishes: the lampreys and hagfishes.Both groups have jawless mouths with horny epidermal structures that function as teeth called ceratodontes, and branchial arches that are internally positioned instead of external as in the related jawed fishes. [1]