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Sponges of Zihuatanejo

PHYLUM PORIFERA

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Amphimedon texotli

-Animals (Kingdom Animalia)

-Sponges (Phylum Porifera)

-Demosponges (Class Demospongiae)

-Subclass Heteroscleromorpha

-Order Haplosclerida

-Family Niphatidae

-Genus Amphimedon

-Amphimedon texotli


Amphimedon texotli is a species of marine demosponge in the genus Amphimedon, family Niphatidae. It is known from the tropical eastern Pacific, including coastal regions of Mexico, where it inhabits shallow rocky reefs and subtidal environments. This species typically forms encrusting to low, irregular masses that adhere closely to hard substrates such as rock or coral. Like other members of Amphimedon, A. texotli is a filter feeder, pumping seawater through its canal system to remove bacteria, microscopic algae, and organic particles. Its internal skeleton consists of spongin fibres reinforced with siliceous spicules, providing both flexibility and structural support.

Description

• Amphimedon texotli is a species of marine sponge in the family Niphatidae. Like other members of the genus Amphimedon, it is a filter-feeding invertebrate with a porous body and an internal network of canals that circulate water. Species in this genus often form branching, lobed, or irregular masses, with colours that can include shades of green, brown, and purple. Detailed species-specific information about its appearance is limited.

Range

• Amphimedon texotli is a marine sponge associated with tropical waters of the Americas. It is native to Zihuatanejo, Guerrero, and the surrounding area.

Habitat

• It inhabits coastal marine environments, growing attached to submerged hard surfaces such as rocks, reef structures, and coral rubble. It obtains oxygen and food from the water flowing through its body.

Diet

• Amphimedon texotli is a filter feeder that captures bacteria, microscopic plankton, and fine organic particles from the water. Specialized cells called choanocytes help draw water through the sponge and trap food particles.

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