''Zaniolepis frenata'', the shortspine combfish, is a species of

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or h ...

belonging to the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Zaniolepididae The Zaniolepididae is a family of marine ray-finned fishes classified within the suborder Cottoidei of the order Scorpaeniformes. They are found in the North Pacific Ocean. Taxonomy ''Zaniolepididae'' was first proposed as a family in 1883 by th ...

.The species occurs in the eastern

Pacific The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the contine ...

Ocean.

Taxonomy

''Zaniolepis frenata'' was first formally

description Description is the pattern of narrative development that aims to make vivid a place, object, character, or group. Description is one of four rhetorical modes (also known as ''modes of discourse''), along with exposition, argumentation, and narra ...

in 1889 by the American

ichthyologist Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish ( Chondrichthyes), and jawless fish ( Agnatha). According to FishBase, 33,400 species of fish had been described as of O ...

Carl H. Eigenmann Carl Henry Eigenmann (March 9, 1863 – April 24, 1927) was a German-American ichthyologist of the late nineteenth and early twentieth centuries, who, along with his wife Rosa Smith Eigenmann, and his zoology students is credited with identifyin ...

and

Rosa Smith Eigenmann Rosa Smith Eigenmann (October 7, 1858 – January 12, 1947) was an American ichthyologist (the branch of zoology devoted to the study of fish), as well as a writer, editor, former curator at the California Academy of Sciences, and the first libra ...

with its type locality given as

Cortes Bank Cortes Bank is a shallow seamount (a barely submerged island) in the North Pacific Ocean. It is 96 miles southwest of San Pedro, Los Angeles, 111 miles (166 kilometers) west of Point Loma, San Diego, and 47 miles (82 kilometers) southwest of San ...

off

San Diego, California San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the eighth most populous city in the United Stat ...

. The specific name, ''frenata'', means "bridled". The Eigenmanns did not explain this allusion but they were probably referring the diagonal dark band running through the eye.

Description

''Zaniolepis frenata'' has an elongated, slender and compressed body. The background color is tan or pink on the upper body broken by with darker, rather ill-defined markings, fading to white on the underside. In life they have a row of dark saddle-like markings along the back and a variety of blotches and spots on the flanks with a diagonal fark bar through the eye. They have a long

anal fin Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as see ...

which has a broad dark stripeand a white edge. The caudal fin is dark brown in color with a yellow at the base and margin. The first

dorsal fin A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through c ...

is pale marked with three series of dark spots, at the base, in the middle and near the margin. The

pectoral Pectoral may refer to: * The chest region and anything relating to it. * Pectoral cross, a cross worn on the chest * a decorative, usually jeweled version of a gorget * Pectoral (Ancient Egypt), a type of jewelry worn in ancient Egypt * Pectorali ...

and

pelvic fin Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two ...

s have a are dark brown in the middle and yellow or white at their edge. They have a relatively short head which has a sharply pointed snout. The small mouth is terminal and the eyes are set high on the head. The first dorsal fin has 21 spines while the second has 11 or 12 soft rays while the

has 3 spines and 15 or 16 soft rays. The body is covered in rough scales and the

lateral line The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial ...

is placed high on the body. This species reaches a maximum

total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish ...

of .

Distribution and habitat

''Zaniolepis frenata'' is found in the eastern Pacific Ocean where it is found off the coasts of southern

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

to central

Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...

. It lives a benthic lifestyle over mud, cobble, and pebble bottoms, usually at depths of 55 to 244 meters, although some individuals have been found in depths from .

Ecology

''Zaniolepis frenata'' feeds on

amphipods Amphipoda is an order of malacostracan crustaceans with no carapace and generally with laterally compressed bodies. Amphipods range in size from and are mostly detritivores or scavengers. There are more than 9,900 amphipod species so far describ ...

copepods Copepods (; meaning "oar-feet") are a group of small crustaceans found in nearly every freshwater and saltwater habitat. Some species are planktonic (inhabiting sea waters), some are benthic (living on the ocean floor), a number of species have p ...

krill Krill are small crustaceans of the order Euphausiacea, and are found in all the world's oceans. The name "krill" comes from the Norwegian word ', meaning "small fry of fish", which is also often attributed to species of fish. Krill are consi ...

isopods Isopoda is an order of crustaceans that includes woodlice and their relatives. Isopods live in the sea, in fresh water, or on land. All have rigid, segmented exoskeletons, two pairs of antennae, seven pairs of jointed limbs on the thorax, and ...

polychaetes Polychaeta () is a paraphyletic class of generally marine annelid worms, commonly called bristle worms or polychaetes (). Each body segment has a pair of fleshy protrusions called parapodia that bear many bristles, called chaetae, which are made ...

shrimps Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referre ...

, and fish eggs. The species is preyed upon by

sea birds Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same envi ...

, sea lions, and other species of fish. Females can lay as much as 800 to 1,000 eggs annually. Parasites of the species include '' Hamaticolax prolixus'', '' Haliotrema zebrasoma'', '' Haliotrema parahaliotremata'' and '' Hysterolecithoides sebrasomatis''.

Utilization

''Zaniolepis frenata'', which has been recorded as a source of food for the Native American inhabitants of

San Nicolas Island San Nicolas Island ( Spanish: ''Isla de San Nicolás''; Tongva: ''Haraasnga'') is the most remote of the Channel Islands, off of Southern California, 61 miles (98 km) from the nearest point on the mainland coast. It is part of Ventura Cou ...

off the coast of

Southern California Southern California (commonly shortened to SoCal) is a geographic and cultural region that generally comprises the southern portion of the U.S. state of California. It includes the Los Angeles metropolitan area, the second most populous urban ...

during the Middle Holocene.

References

{{Taxonbar, from=Q2312203 Fish described in 1889 frenata Taxa named by Rosa Smith Eigenmann Fish of the Pacific Ocean Fish of the Western United States Fish of Mexican Pacific coast Taxa named by Carl H. Eigenmann