Nematolampas

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Nematolampas
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Oegopsida
Family: Lycoteuthidae
Subfamily: Lycoteuthinae
Genus: Nematolampas
Berry, 1913
Type species
Nematolampas regalis
Berry, 1913 [1]

Nematolampas is a genus of squid from the family Lycoteuthidae. The genus comprises two species both of which are known from only a few males. The type species, Nematolampas regalis has been recorded from the subtropical South Pacific and the second species, Nematolampas venezuelensis , is from the tropical western North Atlantic. The main distinguishing feature of this genus is that arms III are very elongated and thread-like and have no suckers near their tips. As only males have been captured it is not known if this feature is present in females. [2]

A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.

Squid order of molluscs

Squid are cephalopods in the superorder Decapodiformes with elongated bodies, large eyes, eight arms and two tentacles. Like all other cephalopods, squid have a distinct head, bilateral symmetry, and a mantle. They are mainly soft-bodied, like octopuses, but have a small internal skeleton in the form of a rod-like gladius or pen, made of chitin.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Species

There are currently two species classified under this genus: [1]

Nematolampas regalis, the regal firefly squid is a small, little known species of squid from the family Lycoteuthidae which is found in the subtropical South Pacific Ocean. This squid has a mantle length of 30mm. It may be sexually dimorphic with the males possibly having very thin elongated arms III which are increasingly thread like towards their tips where they do not have any suckers. Arms II are "normal" and have suckers along their length. The third arms have a series of photophores along their length and there is a small photophore located on each of the tips of arms I and II. The tentacles have two embedded photophores and the largest of the eye's photophores is in the centre. There is a pair of large photophores vlose to the tip of the mantle on the ventral side mantle; with no other photphores on the body except for a visceral photophore which is also near the tip. There is practically no tail. N. regalis is known only from the Kermadec Islands near New Zealand, one of the specimens was beached while the other two were caught by a trawl at a depth of 48m.

Nematolampas venezuelensis is a squid small in size (58–88mm). This squid can be found in tropical waters off the coast of Venezuela in the Caribbean Sea, Western North Atlantic. The data for this species has been gathered from four immature squids captured in the tropical waters off the coast of Venezuela in the Caribbean Sea, Western North Atlantic.

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