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The three-lined pencilfish is a small fish, with adults not reaching more than 6 cm in length. It has a small terminal mouth, and an adipose fin may or may not be present. Most pencilfish possess distinct daytime and nighttime color patterns, and N. trifasciatus is no exception. During the day, it has three black longitudinal stripes that run ...
Cuttlefish sometimes use their color patterns to signal future intent to other cuttlefish. For example, during agonistic encounters, male cuttlefish adopt a pattern called the intense zebra pattern, considered to be an honest signal. If a male is intending to attack, it adopts a "dark face" change, otherwise, it remains pale. [62]
Nannostomus anduzei (common name: Anduzi's pencilfish) is a freshwater species of fish belonging to the genus Nannostomus in the characin family Lebiasinidae. [1] It is native to Venezuela and northern Brazil, particularly the upper Orinoco and Rio Ererê, a tributary of the Rio Negro. The adults grow to a maximum length of only 16 mm, making ...
Cutthroat trout. The cutthroat trout (Oncorhynchus clarkii) is a fish species of the family Salmonidae native to cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. As a member of the genus Oncorhynchus, it is one of the Pacific trout, a group that includes the widely distributed rainbow trout.
Fish coloring games are a real entertainment for kids. When they color fish, it can be a fun and educational tool at the same time. Through these coloring sheets, children learn about various colors and creatures, who live in the underwater world. Coloring has always been the best way to entertain kids, especially if you have in mind the ...
The dwarf cuttlefish (Sepia bandensis), also known as the stumpy-spined cuttlefish, is a species of cuttlefish native to the shallow coastal waters of the Central Indo-Pacific. [4] [5] The holotype of the species was collected from Banda Neira, Indonesia. [2] It is common in coral reef and sandy coast habitats, usually in association with sea ...
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages. The term scale derives from the Old French escale, meaning a ...
The roach is a small fish, often reaching no more than about 35 centimetres (14 in); maximum length is 50 cm (20 in). Its body has a bluish-silvery colour and becomes white at the belly. The fins are red. The number of scales along the lateral line is 39–48. [3] The dorsal and anal fins have 12–14 rays.