ExplorarInvertebrate

San Diego Dorid

diaulula sandiegensis

The San Diego Dorid is a fascinating marine gastropod mollusk, belonging to the group of shell-less marine snails known as nudibranchs. Widely distributed along the rocky Pacific coast of North America, this sea slug captivates beachgoers and tidepoolers with its elegant appearance and slow, deliberate movements. Unlike many colorful nudibranchs, it displays a sophisticated, understated palette of creams and browns, making it a master of camouflage among the sponges it inhabits. This species plays an important role in its local ecosystem, acting as a specialized predator of marine sponges. By consuming these organisms, the dorid not only controls sponge populations but also bioaccumulates toxic compounds from its prey, repurposing them for its own chemical defense system. Observing a San Diego Dorid in a tide pool provides a wonderful glimpse into the complex evolutionary adaptations of soft-bodied marine invertebrates.

Hábitat: Found in rocky intertidal and subtidal zones, particularly on reefs, in tide pools, and under ledges where marine sponges are abundant.

Aspecto

The San Diego Dorid features an oval, slightly flattened body, typically ranging from cream to pale yellow or light tan. Its mantle is covered in numerous tiny, sensory papillae that give it a velvety, carpet-like texture. The most distinguishing identifier is the pattern of dark brown to black rings or spots scattered across its back, resembling leopard spots. Near the anterior end, it has two sensory rhinophores resembling small horns, while the posterior end boasts a conspicuous, flower-like rosette of retractile gills. It can grow up to 10 centimeters in length.

ReinoAnimaliaFiloMolluscaClaseGastropodaOrdenNudibranchiaFamiliaDiscodorididaeGéneroDiaulula
San Diego Dorid
San Diego Dorid

Categoría

Invertebrate

Rareza

Common

Peligro

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Snaps

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Datos interesantes

The dark ring patterns on each San Diego Dorid are entirely unique, acting much like a human fingerprint.

Their eggs are laid in beautiful, spiral ribbons that resemble white lace or ruffled carnation petals attached to rocks.

When threatened, they can emit a mildly acidic secretion that makes them taste terrible to potential predators.

Habilidades especiales

Habilidad

Chemical Camouflage

It absorbs toxic secondary metabolites from the sponges it consumes, using these noxious chemicals to deter predatory fish and crabs.

Habilidad

Caryophyllidia Armor

Its skin is packed with microscopic, glass-like calcareous spicules called caryophyllidia, providing a rough physical barrier against predators.

Habilidad

Gill Retraction

It can instantly withdraw its fragile posterior gill plume into a protective pocket inside its body when it senses vibrations or physical contact.

Medidas y detalles

Longitud
2-10 cm
Peso
0.005-0.05 kg
Esperanza de vida
1-2 años
Tamaño de la puesta
1000-15000
Incubación
10-20 días

Dieta y alimentación

This nudibranch is a highly specialized carnivore that feeds almost exclusively on various species of marine sponges by scraping them with its radula.

Alimentos principales

  • Purple Encrusting Sponge
  • Breadcrumb Sponge
  • Glove Sponge

Método de búsqueda

  • Grazing

Conexiones ecológicas

hunts

Purple Encrusting Sponge

Haliclona permollis

Feeds extensively on this encrusting sponge, scraping its tissue with a specialized radula.

eaten by

Leather Star

Dermasterias imbricata

Serves as a prey item for this predatory sea star, which is one of the few organisms capable of tolerating the dorid's toxic defenses.

Rasgos

Aún no hay insignias de rasgos asignadas a este objeto.

También conocido como

Todavía no hay alias listados.

Colecciones

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Seguridad

Peligro

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Todavía no hay notas especiales de seguridad.

Preguntas frecuentes

¿Cómo identificar a San Diego Dorid?

La forma más fácil de identificar a San Diego Dorid es usar la aplicación de identificación de naturaleza Snappit.

¿Cuál es el longitud de San Diego Dorid?

2-10 cm

¿Cuál es el peso de San Diego Dorid?

0.005-0.05 kg

¿Cuál es el esperanza de vida de San Diego Dorid?

1-2 años

¿Qué come San Diego Dorid?

This nudibranch is a highly specialized carnivore that feeds almost exclusively on various species of marine sponges by scraping them with its radula.

¿Dónde se encuentra normalmente San Diego Dorid?

Found in rocky intertidal and subtidal zones, particularly on reefs, in tide pools, and under ledges where marine sponges are abundant.

¿Cómo caza San Diego Dorid?

Grazing

¿Cuál es el tamaño de la puesta de San Diego Dorid?

1000-15000

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