Alison’s Jorunna – Jorunna alisonae

, Alison's Jorunna, Jorunna alisonae
Depth: 3 - 5 m

Afghanistan, Alaska, Algeria, Andaman and Nicobar, Angola, Antarctica, Antigua and Barbuda, Arctic, Argentina, Ascension Island, Australia, Austria, Azerbaijan, Azores Islands, Bangladesh, Belarus, Bolivia, Bosnia and Herzegovina, Brazil, Brunei Darussalam, Bulgaria, Cambodia, Cameroon, Canada, Canary Islands, Cayman Islands, Central African Republic, Chile, China, Cocos Islands, Comoros, Congo, Cook Islands, Corsica Island, Crete Island, Croatia, Curaçao, Cyprus, Czech Republic, Democratic Republic of the Congo, Denmark, El Salvador, England, Equatorial Guinea, Falkland Islands, Faroe Islands, Finland, France, French Polynesia, Gabon, Galapagos Islands, Germany, Ghana, Gibraltar, Greece, Greenland, Guinea, Guinea-Bissau, Hawaii, Honduras, Hungary, India, Indonesia, Iran, Iraq, Ireland, Italy, Ivory Coast, Japan, Kazakhstan, Kyrgyzstan, Laos, Macedonia, Madagascar, Madeira Islands, Malawi, Marshall Islands, Mauritius, Mexico, Micronesia, Moldova, Morocco, Mozambique, Myanmar, Namibia, New Zealand, Nicaragua, Nigeria, Norfolk Island, North Korea, Northern Ireland, Norway, Oman, Pakistan, Palestine, Papua New Guinea, Peru, Philippines, Poland, Portugal, Reunion Island, Romania, Russia, Saint Martin, São Tomé and Príncipe, Sardinia Island, Scotland, Senegal, Serbia, Sicily Island, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Georgia And The South Sandwich Islands, South Korea, Spain, Sweden, Taiwan, Tajikistan, Tanzania, Tonga, Tunisia, Turkey, Turkmenistan, Turks and Caicos Islands, Ukraine, United Kingdom, United States Minor Outlying Islands, Uruguay, US Minor Islands, USA, Uzbekistan, Vatican City, Venezuela, Vietnam, Virgin Islands, Wales, Yemen, Zambia, Zimbabwe

Alison’s Jorunna, scientifically known as Jorunna alisonae, is a captivating species of sea slug belonging to the family Discodorididae. With its distinctive appearance and fascinating life cycle, it has captivated the attention of marine biologists and enthusiasts alike.

Description & Characteristics

Jorunna alisonae is characterized by its striking coloration and unique morphology. Its body is typically a vibrant shade of yellow or orange, often adorned with intricate patterns and markings. It possesses a pair of prominent rhinophores, or sensory organs, that are located on the dorsal surface of the head. These rhinophores are slender and elongated, resembling small antennae. The species also features a pair of oral tentacles, which are used for sensing and manipulating food.

Habitat and Occurrence

Jorunna alisonae is a predominantly intertidal species, meaning it resides in the area between the high and low tide marks. It can be found in a variety of habitats, including rocky reefs and hard seabeds. This sea slug thrives in seawater environments, making it a common sight in marine ecosystems. The species is known to inhabit the intertidal zone, the tidal zone, and is frequently found in rocky reef habitats.

Taxonomy

Jorunna alisonae belongs to the Class: Gastropoda, Order: Nudibranchia, and Family: Discodorididae. The family Discodorididae is a diverse group of sea slugs that are characterized by their flat, disc-like bodies. These sea slugs are often brightly colored and display a wide range of patterns and markings.

Feeding

Alison’s Jorunna is a specialized feeder, with a diet consisting almost entirely of sponges. The species has evolved a unique feeding apparatus that enables it to efficiently consume and digest sponge tissues.

Associated Species

Image References

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