Japanese Longtail Dragonet (Calliurichthys japonicus) | Marine Explorer Coloring Kit

Explore a graceful and unusual bottom-dwelling marine fish with a long tail, ornate fins, and a distinctive dragonet body form. The Japanese Longtail Dragonet, scientifically known as Calliurichthys japonicus, is a western Pacific species recognized for its elongated body, broad pectoral fins, dramatic first dorsal fin, extended caudal fin, and sandy-bottom camouflage.

Taxonomic note: This product follows the name Calliurichthys japonicus as shown for this educational entry, while the species may also be connected in taxonomy with Callionymus japonicus.

This CECOZ Marine Explorer Coloring Kit highlights the elegant structure of Calliurichthys japonicus, a species that differs strongly from typical reef fishes. Instead of relying on fast open-water swimming, dragonets are adapted for life close to the seafloor, where they move over sand, mud, and soft-bottom habitats while searching for small prey.

The Japanese Longtail Dragonet occurs in the western Pacific, including Japan, Indonesia, Papua New Guinea, northwestern Australia, and nearby island regions. It is associated with shallow to deeper coastal waters and sandy or muddy bottoms, making it an excellent educational subject for teaching demersal fish ecology, substrate camouflage, and bottom-feeding adaptation.

Its feeding ecology includes small benthic invertebrates such as amphipods, polychaete worms, small mollusks, and brittle-star relatives. This makes the species especially useful for explaining how soft-bottom marine habitats support complex food webs that are often less visible than coral reefs.

For coloring and educational use, Calliurichthys japonicus offers a refined and detailed subject: a long slender body, expanded pectoral fins, high ornamental dorsal fin, patterned tail, dark upper shading, pale lower body, and extended caudal structure. It is especially valuable for learners studying dragonets, sandy-bottom fishes, benthic feeding, sexual display structures, and the diversity of the Callionymidae family.

Developed using real marine reference observations and scientific classification standards.

Common Name: Japanese Longtail Dragonet

Scientific Name: Calliurichthys japonicus

Origin / Habitat: Western Pacific; shallow to deeper coastal waters over sandy and muddy bottoms.

[Exclusive Educational Content Included]

This educational coloring kit combines marine science with detailed line art, helping learners and collectors explore dragonet anatomy, sandy-bottom adaptation, demersal behavior, benthic feeding ecology, camouflage, and the diversity of western Pacific bottom-dwelling fishes.

Best for: marine biology learners, educators, dragonet enthusiasts, taxonomy students, fish illustrators, ocean-life collectors, coloring enthusiasts, and anyone interested in unusual benthic marine species.

Note: Full biological profile data including habitat, diet, size, temperature, salinity, pH, and aquarium-reference parameters is included in the Digital Infographic Card inside your download folder.

Formats included: High-resolution printable coloring page (A4 PDF) + Scientific Infographic Card.

Part of the growing CECOZ Marine Explorer Series — collect and build your personal marine library.