All Fishes

Gulper eel

Saccopharynx ampullaceus

The gulper eel has a long, slender body and a disproportionately large mouth, with jaws that …

Guppy

Poecilia reticulata

Guppies exhibit pronounced sexual dimorphism, with males and females differing in size, shape, and colouration. Males …

Haddock

Melanogrammus aeglefinus

Haddock has three dorsal fins and two anal fins. The first dorsal fin is high and …

Hagfish

Myxine glutinosa

Fish-like vertebrates, jawless fish are similar in shape to eels, with a cartilaginous or fibrous skeleton …

Hake, Pacific

Merluccius productus

The body of the Pacific hake is elongated, slender, and moderately compressed. The head is elongated, …

Hake, Red

Urophycis chuss

The body of the red hake is elongated. The caudal fin is truncated. There is a …

Hake, Silver

Merluccius bilinearis

The body is long and slender, with a flattened head, a large mouth, and strong, sharp …

Half-mourning croaker

Paranibea semiluctuosa

The semi-mourning croaker has a broad body more than three times the standard length, a rounded …

Half-naked hatchetfish

Argyropelecus hemigymnus

The half-naked hatchetfish has a strongly compressed, deep body that is bright silvery in color. It …

Halfbeaks and Balao

Hemiramphus balao and Hyporhamphus unifasciatus

The body is elongated, rounded, and flattened laterally only in the tail area. The dorsal and …

Halibut, Atlantic

Hippoglossus hippoglossus

The body is elongated broad, somewhat flattened, oval, bordered by long dorsal and anal fins. Head …

Halibut, California

Paralichthys californicus

The body of the California halibut is oblong and compressed. The head is small and the …

Halibut, Pacific

Hippoglossus stenolepis

Halibut are usually dextral, meaning both eyes are on the right side of the head. Its …

Hamecon

Artediellus scaber

In the Hamecon species, the first process on the preoperculum bends upward. There are also many …

Hardyhead silverside

Atherinomorus lacunosus

The Hardyhead silverside is characterised by a very low and broad lateral protrusion of the premaxilla, …

Harlequin snake eel

Myrichthys colubrinus

The harlequin snake eel has a long, tubular body shape and a narrow head. They are …

Harlequin sweetlips

Plectorhinchus chaetodonoides

These fish have fleshy lips that swell moderately as the fish grows, the chin has 6 …

Hawaiian butterflyfish

Chaetodon tinkeri

Small fishes with a very compressed body, high on the sides, a small terminal retractable mouth, …

Heller's barracuda

Sphyraena helleri

This species is characterised by the following set of features: first gill arch with a single …

Herring

Clupea

Body compressed from the sides, with jagged edge of abdomen. Scales moderate or large, rarely small. …

Herring scad

Alepes vari

Have a body profile very similar to other members of the genus Alepes, with a highly …

Herring, Atlantic

Clupea harengus

The body is not high (its height is about 1/5 of body length). Head is comparatively …

Herring, Pacific

Clupea pallasii

The body is prostrate, compressed from the sides, covered with easily drooping scales. Abdomen rounded, ventral …

Hind, Red

Epinephelus guttatus

Like all, grouper has a strong body and a large mouth. In appearance, it is very …