This is an Opalescent Nudibranch (Hermissenda crassicornis). Opalescent Nudibranch 2. There are over 3,000 species of nudibranchs… [Update March 2018 – There has been a reclassification of this species of nudibranch whereby Hermissenda crassicornis is also being referenced as the “Thick-Horned Nudibranch.Please see my blog at this link for that information.]. Distinctive orange stripe on head. White-lined Dirona 2. Distribution. Hermissenda opalescens. Diamondback Tritonia 1. The geographic location of this particular species is along the Pacific coast of North America and Asia (1). Photograph by Robin Agarwal, via Flickr Creative Commons License. Nudibranchs are snails without shells and without the coiled body of their near relatives. Ringed Janolus 11. … Antiopella fusca. Characteristics. Dirona picta. Janolus anulatus. Opalescent Nudibranch with a forked oral tentacle. Opalescent Nudibranchs have been used in laboratory settings for many years, as a model species for neurology, ecology, pharmacology, and toxicology research. The opalescent nudibranch is a common aeolid nudibranch species located within niches that range from the rocky intertidal zone to muddy flats (1). Nudibranchs are hermaphroditic but are unable to fertilize themselves. White-and-Orange-Tipped Nudibranch 3. Cockscomb Nudibranch 3. One of the more obvious nudibranchs along Pacific shores, including Puget Sound, this species can be found crawling slowly in tide pools and on pilings, dock floats, and even open bottom substrates. Antiopella barbarensis. Hermissenda opalescens is a species of brightly coloured sea slug or nudibranch, a marine gastropod mollusc in the family Facelinidae. Colorful Dirona 1. However, this research may need to be revisited. The best video templates for 7 different situations These rhinophores help them to find food by sensing the chemicals in the water. Opalescent Nudibranch Hermissenda crassicornis Typical size: 0.5-3” length ID: Densely packed long, narrow cerata tipped in orange. This species is commonly known as the "opalescent sea slug." Remote health initiatives to help minimize work-from-home stress; Oct. 23, 2020. Opalescent nudibranch are a species of ‘sea slugs’, they have rhinophores that are projections which look like horns on their head. Posts from the ‘opalescent nudibranch’ category Attack of the Sea Slugs! Body color varies from light blue to white. This video is a collection of different nudibranch species, which appear in order as listed. The Opalescent Nudibranch is common, abundant, and has a life cycle of four months. Dirona albolineata. Other species of nudibranches can live up to a year, and a 6 year life span has been reported when the nudibranch is inside an aquarium. This makes sense because the little flower-type protrusions on the back of the nudibranch are the exposed (naked) gills. Oct. 28, 2020. Blog. They also tend to lay their eggs in a gelatinous spiral. Nudibranch comes from the Latin word ‘nudus’ and the Greek word ‘brankhia,’ meaning ‘naked’ and ‘gills’ respectively.