Chromodoris striatella

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Chromodoris striatella
Chromodoris striatella-4.jpg
The nudibranch Chromodoris striatella, Mirs Bay, Hong Kong.
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Infraclass: Euthyneura
Order: Nudibranchia
Superfamily: Doridoidea
Family: Chromodorididae
Genus: Chromodoris
Species:
C. striatella
Binomial name
Chromodoris striatella
Bergh, 1877 [1]

Chromodoris striatella is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae. [2] [3]

In biology, a species ( ) is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. While these definitions may seem adequate, when looked at more closely they represent problematic species concepts. For example, the boundaries between closely related species become unclear with hybridisation, in a species complex of hundreds of similar microspecies, and in a ring species. Also, among organisms that reproduce only asexually, the concept of a reproductive species breaks down, and each clone is potentially a microspecies.

Sea slug group of marine invertebrates with varying levels of resemblance to terrestrial slugs

Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are actually gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.

Nudibranch order of molluscs

Nudibranchs are a group of soft-bodied, marine gastropod molluscs which shed their shells after their larval stage. They are noted for their often extraordinary colours and striking forms, and they have been given colourful nicknames to match, such as "clown", "marigold", "splendid", "dancer", and "dragon". Currently, about 3,000 valid species of nudibranchs are known.

Contents

Distribution

This species was described from Indonesia as Chromodoris lineolata Bergh, 1874. [4] In 1877 Bergh realised his mistake and named it Chromodoris striatella. [5] It has been reported from Indonesia, the Philippines, New Caledonia, Hong Kong, Japan and Eastern Australia. [6]

Indonesia Republic in Southeast Asia

Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia, between the Indian and Pacific oceans. It is the world's largest island country, with more than seventeen thousand islands, and at 1,904,569 square kilometres, the 14th largest by land area and the 7th largest in combined sea and land area. With over 261 million people, it is the world's 4th most populous country as well as the most populous Muslim-majority country. Java, the world's most populous island, contains more than half of the country's population.

<i>Chromodoris lineolata</i> species of mollusc

Chromodoris lineolata is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

Philippines Republic in Southeast Asia

The Philippines, officially the Republic of the Philippines, is an archipelagic country in Southeast Asia. Situated in the western Pacific Ocean, it consists of about 7,641 islands that are categorized broadly under three main geographical divisions from north to south: Luzon, Visayas, and Mindanao. The capital city of the Philippines is Manila and the most populous city is Quezon City, both part of Metro Manila. Bounded by the South China Sea on the west, the Philippine Sea on the east and the Celebes Sea on the southwest, the Philippines shares maritime borders with Taiwan to the north, Vietnam to the west, Palau to the east, and Malaysia and Indonesia to the south.

Description

Chromodoris striatella is a chromodorid nudibranch with a pattern of multiple longitudinal stripes of dark brown on a white background on the mantle. The mantle edge is orange or yellow. The gills are brown with fine white spots. The rhinophores are orange-brown and are also covered with fine white spots. This species is distinguished from the similar Chromodoris lineolata by the presence of the white background colour next to the orange border in C. striatella, whilst in C. lineolata the first line in from the border is black. [6]

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References

  1. ↑ Bergh, L. S. R. 1877. Malacologische Untersuchungen. In: Reisen im Archipel der Philippinen von Dr. Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 2, Heft 11, pp. 429- 494, pls. 54-57.
  2. ↑ Caballer, M. (2015). Chromodoris striatella Bergh, 1877. In: MolluscaBase (2015). Accessed through: World Register of Marine Species on 2015-12-07
  3. ↑ Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdes A. & Warén A. 2005. Classification and nomenclator of gastropod families. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. ISBN   3-925919-72-4. ISSN 0076-2997. 397 pp.
  4. ↑ Bergh, L. S. R. (1874) Malacologische Untersuchungen. In: Reisen im Archipel der Philippinen von Dr. Carl Gottfried Semper. Zweiter Theil. Wissenschaftliche Resultate. Band 2, Theil 1, Heft 6, pp. 247- 285, pls. 32-35.
  5. ↑ Rudman, W.B. (1982) The Chromodorididae (Opisthobranchia: Mollusca) of the Indo-West Pacific: Chromodoris quadricolor, C. lineolata and Hypselodoris nigrolineata colour groups. Zoological Journal of the Linnean Society, 76: 183-241. page(s): 196
  6. 1 2 Rudman, W.B., 1999 (June 19) Chromodoris striatella Bergh, 1876. [In] Sea Slug Forum. Australian Museum, Sydney.
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