Results for “pectoral”

pectoral

Of, relating to or located on the chest, breast, or thorax; used to refer to a single pectoral fin in relation to fishes.

Used in 263 profiles

pectoral-fin

Anterior, paired fin attached to the pectoral girdle of fishes, usually just behind the opercle and corresponding to the forelimbs of higher vertebrates. Assists in controlling direction of movement and swimming speed. Frequently abbreviated to 'P' or 'P1' in scientific papers.

Used in 508 profiles

pectoral girdle

Bony or cartilaginous structure supporting the forelimbs or anterior fins in vertebrates.

Used in 26 profiles

humeral spot

A marking on the body in the area analogous to the humerus, or shoulder. In fishes it's normally located above the pectoral-fin and behind the opercle. There may be more than a single such spot in some species.

Used in 42 profiles

lamina circularis

Bony process or plate at the base of the first ( unbranched ) and second ( first branched ) ray of the pectoral-fin in most male specimens of the family Cobitidae. It is also known as 'Canestrini's scale'.

Used in 24 profiles

body depth

The vertical distance between the dorsal and ventral margins of the body measured at the base of the pectoral fin where it joins the body. In most icthyological works the greatest dimension, normally anterior to the dorsal fin, is taken but in some cases body depth is measured at the origin of pectoral, pelvic and first anal. Fins or fin bases are not included in the measurement, however.

Used in 85 profiles

cleithrum

Major bone of the pectoral girdle. Extends upward from the pectoral fin base and forms the rear margin of the branchial cavity. Articulates with the supracleithrum dorsally, the scapula and coracoid ventrally. Also known as proscapulum.

Used in 4 profiles

humeral process

Bony process extending posteriorly from the pectoral girdle, above the base of the pectoral fin. Present only in certain fishes.

Used in 8 profiles

axil

The upper angle between a fin and the body of a fish, most often used in reference to the pectoral fin.

axillary process

A modified, often elongate, scale or group of scales located at the base of the pectoral or ventral fins in some fishes.

baudelot's ligament

Ligament, sometimes ossified, which joins the 1st centrum with the supracleithrum. Helps anchor the pectoral girdles to the sides of the fish.

Used in 2 profiles

clavicle

Refers to the collar bone in human anatomy. Present in the pectoral girdle of some fishes as a paired, dermal bone ventral to or fused with the cleithrum.

Used in 1 profile

cleithral spot

Variably-sized (depending on species), usually dark marking present in the cleithral area dorsal to the pectoral fin insertion. Normally visible externally in llive specimens.

Used in 17 profiles

coracoid

Paired endochondral bone located at the base of the pectoral fin upon which rest the pterygials or actinosts. Attaches to the cleithrum anteriorly.

Used in 18 profiles

humerus

The pectoral girdle in most fishes.

jugular

Of or relating to the neck or throat. Sometimes used in reference to a fish possessing pelvic fins located in front of the pectoral fins.

mesocoracoid

Paired bone situated in the pectoral girdle, below the cleithrum.

paired fins

The pectoral and pelvic/ventral fins, both of which occur in pairs and are analogous to the fore and hind limbs in higher animals.

Used in 58 profiles

pelvic girdle

Bony or cartilaginous structure supporting the pelvic fins. Sometimes fused with the pectoral girdle.

Used in 9 profiles

scapula

Paired bone attached to the pterygials, actinosts or radials of the pectoral fin. Articulates ventrally with the coracoid and anteriorly with the cleithrum.