Lampocteis
| Lampocteis | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Ctenophora |
| Class: | Tentaculata |
| Order: | Lobata |
| Family: | Lampoctenidae Harbison, Matsumoto and Robison, 2001 |
| Genus: | Lampocteis Harbison, Matsumoto and Robison, 2001 |
| Species: | L. cruentiventer
|
| Binomial name | |
| Lampocteis cruentiventer Harbison, Matsumoto and Robison, 2001
| |
Lampocteis is a monotypic genus of comb jellies, the only genus in family Lampoctenidae. The sole species in this new genus is Lampocteis cruentiventer, the bloodybelly comb jelly. This ctenophore was first collected in the Pacific Ocean off the coast of San Diego, California, in 1979. It was described to science in 2001. Two morphological differences separating it from previously known comb jellies warranted the naming of a new family for this animal.[1]
This ctenophore differs from all previously described lobate ctenophores in two major ways: (1) all of the meridional canals have blind aboral endings, and (2) the body is penetrated by a deep notch located between the adjacent subtentacular comb rows at the level of the infundibulum. This mesopelagic jelly ranges in color from deep red, purple, or black to pale purple. The deep color of its belly may mask the animal's bioluminescence to hide it from potential predators.[2] Its "combs," rows of cilia on its body, have a sparkling iridescence.[1] Specimens examined have ranged between 1.5 and 16 centimeters in length and 1.2 to 10 centimeters in width.
For phylogenetics, population genetics, metabarcoding, and quick species identifications, the mitochondrial gene cytochrome-c-oxidase subunit 1 (COI) is helpful in many taxa . Due to diverse mitochondrial sequences and the ensuing difficulty to amplify COI with degenerate and conventional COI "barcoding" primers, the phylum Ctenophora (comb jellies) has historically been challenging to research. The resulting COI sequences' phylogenetic analysis indicated substantial variety within several groups, which was not apparent from the more conserved 18S rDNA sequences[3].
References
- ^ a b Harbison, G. R., G. I. Matsumoto, and B. H. Robison. (2001). Lampocteis cruentiventer gen. nov., sp. nov.: A new mesopelagic lobate ctenophore, representing the type of a new family (Class Tentaculata, Order Lobata, Family Lampoctenidae, fam. nov.). Bulletin of Marine Science 68:2 299-311.
- ^ Monterey Bay Aquarium (ed.). "Animal Guide: The bloodybelly comb jelly". Retrieved 2015-05-28.
- ^ Christianson, Lynne M. (JUL 2021). "Hidden diversity of Ctenophora revealed by new mitochondrial COI primers and sequences". Molecular Ecology Resources: 283. doi:10.1111/1755-0998.13459.
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