| Berthella martensi | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Pleurobranchida |
| Family: | Pleurobranchidae |
| Genus: | Berthella |
| Species: | B. martensi |
| Binomial name | |
| Berthella martensi (Pilsbry, 1896) | |
Berthella martensi is a species of sea slug, a marine gastropod mollusk in the family Pleurobranchidae. [1]
This species can grow up to a length of 6 cm (2.4 in). The background coloration of the body varies a great deal, from light orange-brown to black or whitish to cream in color. The body is always marked with dark or clear spots, according to what is the dominant background color. The mantle, which covers the body, is composed of four distinct parts: dorsal, anterior, and two lateral pieces protecting the gills. These lateral pieces are on the right side of the body; they have the same coloration as the body, but are outlined in black.
Three of its dorsal parts can be shed in case of danger, a form of autotomy. This species has another means of defense by secreting a repellent acid fluid. [2]
The head has a pair of smooth and slightly folded rhinophores. A trapezoid veil masks partially the oral cavity.
The egg ribbon is whitish.
This species is widely distributed throughout the tropical waters of the Indo-West Pacific. [2] It is usually found among rubble of dead coral in lagoons, or top of the external reef slopes, from the intertidal zone to 25 m depth.
This Berthella species is nocturnal.
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.
Glaucus atlanticus is a species of small, blue sea slug, a pelagic aeolid nudibranch, a shell-less gastropod mollusk in the family Glaucidae.
Chromodoris annae is a species of sea slug, a very colourful nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae.
Chromodoris magnifica is a sea slug, a species of nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae. It is the type species of the genus Chromodoris.
Felimare picta is a species of colourful sea slug or dorid nudibranch, a marine gastropod mollusk in the family Chromodorididae. Atlantic Ocean species of Hypselodoris were all transferred to Felimare following a DNA phylogeny.
Chromodoris elisabethina is a species of very colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Phyllidia elegans is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusk in the family Phyllidiidae.
Berthella ornata is a species of sea slug, a marine gastropod mollusk in the family Pleurobranchidae. It is sometimes called the ornate side-gilled sea slug.
Chromodoris dianae is a species of sea slug, a dorid nudibranch, a shell-less marine gastropod mollusc in the family Chromodorididae.
Glossodoris rufomarginata, commonly called white-margin sea slug or caramel nudibranch, is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.
Discodoris branneri is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae.
Berthella is a genus of sea slugs, marine gastropod mollusks in the family Pleurobranchidae.
Coryphellina rubrolineata is a species of sea slug, an aeolid nudibranch, a marine heterobranch mollusc in the family Flabellinidae.
Thuridilla lineolata is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.
Thuridilla gracilis is a species of sea slug, a sacoglossan, a marine gastropod mollusk in the family Plakobranchidae. It is an Indo-Pacific species that lives in or near coral reefs and eats algae.
Notodoris gardineri is a sea slug, which is a species of nudibranch, a shell-less marine gastropod mollusc in the family Aegiridae.
Plocamopherus maculapodium is a species of sea slug, a nudibranch, a shell-less marine gastropod mollusk in the family Polyceridae.
Lomanotus vermiformis is a species of sea slug, a marine gastropod mollusk in the family Lomanotidae.
Berthella ocellata is a species of sea slug, a marine gastropod mollusc in the family Pleurobranchidae. It is native to the eastern Atlantic Ocean and the Mediterranean Sea where it inhabits the shallow sublittoral zone.
Berthella stellata is a species of sea slug in the family Pleurobranchidae. It is found in shallow water in the Mediterranean Sea, the western Atlantic Ocean and the tropical and subtropical Indo-Pacific region.