Hippocampus is called as 'sea horse', becuase
Seahorse is the marine organism. They belong to the genus of Hippocampus. They are bony fishes. They do not have the presence of scales on their body when compared to the other bony fishes. The body is composed of bony plates. The skin tissue is present over the bony plates. The bony plates are arranged in series like the rings. In Hippocampus the head and neck (snout) is similar to that of horse. So, they are known as seahorse. They have segmented bony armour, an upright posture and a curled prehensile tail.
Thus, the correct answer is option B.
Match the following columns and select the correct option. Column - I Column - II (a) 6-15 pairs of gill slits (i) Trygon (b) Heterocercal caudal fin (ii) Cyclostomes (c) Air Bladder (iii) Chondrichthyes (d) Poison sting (iv) Osteichthyes
Which of the following is/are not the characteristics of the class Osteichthyes? (i) The body is streamlined and mouth is terminal. (ii) Gills are covered by an operculum. (iii) Skin covered with cycloid and placoid scales. (iv) Many of them are viviparous.
Which of the following is a correct match?
Which one of the following categories of animals, is correctly described with no single exception in it?
Pelvic claspers are found in