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In many catfish, the "humeral process" is a bony process extending backward from the pectoral girdle immediately above the base of the pectoral fin. It lies beneath the skin, where its outline may be determined by dissecting the skin or probing with a needle. [57]
The head contains a distinct narrow, bony, external protrusion called a humeral process. [5] The shape and size of the humeral process help to identify the species. In S. granulosus, the humeral process is narrow, long, and rough in appearance, with a distinct ridge on the bottom edge. [2] The top edge is concave and the end is sharply pointed. [2]
Synodontis leopardinus, known as the leopard squeaker, [2] is a species of upside-down catfish that is native to the Cunene, Okavango and upper Zambezi Rivers. [3] It was first described by Jacques Pellegrin in 1914. The original specimens were obtained in Barotsés, on the Zambezi River in Zambia. [2] The species name leopardinus means ...
The head contains a distinct bony, external protrusion called a humeral process. [6] The shape and size of the humeral process helps to identify the species. In S. membranaceus, the humeral process is subtriangular, flat, rough, and as long or shorter than it is deep. [6] The fish has three pairs of barbels. The maxillary barbels are on located ...
The head contains a distinct narrow, bony, external protrusion called a humeral process. [2] The shape and size of the humeral process helps to identify the species. In S. clarias, the humeral process is subtriangular, flat, and rough. [4] The fish has three pairs of barbels. The maxillary barbels are on located on the upper jaw, and two pairs ...
The head contains a distinct narrow, bony, external protrusion called a humeral process. [3] The shape and size of the humeral process helps to identify the species. In S. marmoratus, the humeral process is more than twice as long as it is wide. [5] The fish has three pairs of barbels. The maxillary barbels are on located on the upper jaw, and ...
The head contains a distinct narrow, bony, external protrusion called a humeral process. [2] The shape and size of the humeral process helps to identify the species. In S. filamentosus, the humeral process is flat, a little longer than it is broad, and rounded at the end. [6] The fish has three pairs of barbels. The maxillary barbels are on ...
Description. Like all members of the genus Synodontis, S. melanostictus has a strong, bony head capsule that extends back as far as the first spine of the dorsal fin. [4] The head is about 1⁄4 of the standard length of the fish. [1] The head contains a distinct narrow, bony, external protrusion called a humeral process. [3]