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The billfish are a group of saltwater predatory fish characterised by prominent pointed bills ( rostra ), and by their large size; some are longer than 4 m (13 ft). Extant billfish include sailfish and marlin, which make up the family Istiophoridae; and swordfish, sole member of the family Xiphiidae. They are often apex predators which feed on ...
Nachmanides believed that the restrictions against certain fish also addressed health concerns, arguing that fish with fins and scales (and hence ritually clean) typically live in shallower waters than those without fins or scales (i.e., those that were ritually impure), and consequently the latter were much colder and more humid, qualities he ...
Bleeker, 1855. The pink skunk clownfish ( Amphiprion perideraion ), also known as the pink anemonefish, is a species of anemonefish that is widespread from northern Australia through the Malay Archipelago and Melanesia. [2] Like all anemonefishes, it forms a symbiotic mutualism with sea anemones and is unaffected by the stinging tentacles of ...
Juvenile fish are sometimes found among corals in rock pools. Biology. Juvenile Easter Island butterflyfish have been observed to act as cleaner fish, picking parasites off the skin of larger fish. During the breeding season, male and female adult fish form pair bonds. The Easter Island butterflyfish is a bottom feeding fish.
Thus, a grass carp, mirror carp, and salmon are kosher, whereas a shark, whose "scales" are microscopic dermal denticles, a sturgeon, whose scutes can not be easily removed without cutting them out of the body, and a swordfish, which loses all of its scales as an adult, are all not kosher. [8] [10] [11]
Holacanthus. Species: H. passer. Binomial name. Holacanthus passer. Valenciennes, 1864. Holacanthus passer ( king angelfish or passer angelfish) is a large marine angelfish of the family Pomacanthidae. [2] Its large size and bright colors make it a popular aquarium fish, even though it can be difficult to keep.
Cleithrum and scapula from a wrasse. The larger bone is the cleithrum. The cleithrum (plural cleithra) is a membrane bone which first appears as part of the skeleton in primitive bony fish, where it runs vertically along the scapula. [1] Its name is derived from Greek κλειθρον = "key (lock)", by analogy with "clavicle" from Latin ...
Spotted cleaner shrimp. The spotted cleaner shrimp ( Periclimenes yucatanicus ), is a kind of cleaner shrimp common to the Caribbean Sea. These shrimp live among the tentacles of several species of sea anemones. They sway their body and wave their antennae in order to attract fish from which they eat dead tissue, algae and parasites .