Skip to main content

Spotted Jelly

Mastigias papua
The Spotted Jelly is a neat little Jellyfish that hails from the shallow lagoons and bays of the Indian and Pacific Oceans (Theya re also sometimes referred to as Lagoon Jellyfish). They aren't especially, large, but aren't by any means tiny either. They can grow to lengths of around 1ft (30cm), with bell diameters of about 4in (12cm).

Each Spotted Jelly has four interesting little arms that each have mouth openings on them. That's right, they don't have just one mouth, they have a whole bunch of mouths! They use all those tiny mouths to feed on different kinds of Zooplankton.

Because they only eat really tiny things, small fish sometimes hang out near the Jellies. Like many jellyfish, this particular species has the ability to inject toxins into attackers, so the little fish will actually swim up inside the bell to stay safe! (The toxin will cause pain and nausea in humans, but there have been no reported deaths)

Spotted Jellies are normally solitary, but sometimes groups will form when they swim towards the surface during the daytime (they then descend deeper at night). They are able to reproduce both sexually and asexually. Sexually reproduction takes places only during times when water is cooler, but asexual reproduction (through budding) can happen year round.

IUCN Status : Not Listed
Location : Southern Pacific Ocean
Size :  Body diameter around 4in (12cm)
Classification : Phylum : Cnidaria -- Class : Scyphozoa -- Order : Rhizostomeae
Family : Mastigiidae -- Genus : Mastigias -- Species : M. papua

Comments

Popular posts from this blog

Bornean Orangutan

The Bornean Orangutan is one of two extant Orangutan species in the world. It is the third largest primate (after Gorillas) and is the largest primarily tree-dwelling animal in the world. Males are substantially larger than females, and average at around 165lbs. Bornean Orangutans are largely solitary. A handful might live within a small range but they will seldom interact with one another. Males and females only meet up to breed, which happens only once every several years. A young Orangutan will stay with it's mother for about five years, and the females tend to go about eight years between births. That is the longest interim period of any animal! Sadly, the Bornean Orangutans are in a lot of trouble. They need large forests in order to thrive, and deforestation and habitat degradation has left many homeless. They are also hunted for meat and for traditional medicines. Conservation areas are being established to help these guys in the wild, and it is believed that there are a...

Four!

For anyone who was counting, yesterday was our birthday-- four years! Four years filled with animals from A to Z, more than 1,100 of them! I can't thank my readers enough, it's been wonderful! And in celebration of that milestone... I'm taking a break. Hopefully not forever, but for a little bit at least. In the mean time I plan on getting a new layout out, along with some updates to some of the older articles. I'll post updates here and on the Facebook page, I'm also brainstorming some new animal-related projects, so keep an eye out! Thanks again for four awesome years!

Banggai Cardinalfish

Pterapogon kauderni The Banggai Cardinalfish is a small tropical fish that is becoming very rare in the wild, even though it has been successfully bred in captivity. You will only find these small, 3in long fish around the Banggai Islands of Indonesia. They are the only members of their genus, and you can tell them apart from other Cardinalfish by their three-striped bodies, tasseled first dorsal fin, long second dorsal, and their deep-forked tail fins. Banggai Cardinalfish are diurnal and live in small groups of about a dozen members. They are opportunistic feeders who dine on whatever smaller plants and animals they can find. Courtship and mating is pretty interesting for these guys-- females are the ones who initiate. They isolate a male and the pair will perform various courtship rituals before spawning. The Cardinalfish are mouthbrooders, which means that the males take the fertilized eggs (up to 90 of them) into their mouths and incubate them for up to 30 days. During t...