Scientific Name: Limulus PolyphemusCommon Name: HorseshoeTaxonomic Classification:Phylum: ArthropodaClass: MerostomataOrder: XiphosuraSuborder: XiphosuridaFamily: LimulidaeGenus: LimulusSpecies: PolyphemusDescription: Since the Cambrian period there were the Xifosurides, a primitive marine group, which today we consider living fossils. The Horseshoe has a hard segmented horseshoe-shaped segmented carapace, with two simple, median and light-sensitive eyes as well as two side-facing eyes positioned laterally; The abdomen is wide and ends with a telson, that is, the long tail similar to a whip. The cephalothorax carries a pair of chelicers and five pairs of ambulacral paws. On the Opisthosoma or abdomen we find six pairs of book gills.Coloration: Light brown with gray-green tones.Behaviour: The Horseshoe has 6 pairs of appendages, the three pairs of ambulacral paws to which the claws are attached are used to crush the food and bring it to the mouth, located in the center of the cephalothorax and without the jaws. The other two pairs are the chelicers and pincers, with different dimensions and functions. Finally it also has two larger legs, used to move on the sand and dig in the mud.Sexual Dimorphism: Separated sexes, the male is usually smaller (about 20% less).Habitat: The adult Hoeseshoe seems to prefer sea depths of about 30 meters deep to a maximum of about 200 meters.Tips for Breeding: It is advised not to insert in the aquarium because it can not find enough nutrition to live. It prefers the tanks that have sandy backdrops.Alimentation: They feed on the night of worms, small molluscs and other benthic seawater organisms.Diffusion: The Horseshoe spread in North America, from Maine to Florida, and into the Gulf of Mexico. Finally they are also present in Japan.Swimming ability: They swim by the abdominal plates and “walk” with ambulacral paws.Difficulty: Very difficult. Reproduction: Once sexual maturity is reached, the male Horseshoe moves on sandy beaches waiting for the females, for reproduction, in the spring, often coinciding with high tides during pleniluns. The females are approached by about 5 or 6 males and produce up to 80,000 eggs, laying them in 4-5 deep 15-20 cm holes dug into the sand during each tide. After each laying, the males, in turn, fertilize the eggs. Each nest contains about 4000 eggs, and one female lays about 20 in a year during the tide.Risk of extinction: Vulnerable
This year the Exotica Pet Show Italy 2018 will take place on 24-25 February 2018 in the location of Arezzo Fiere, 7-8 April in Erba (Milan) and 1st-2nd December in Montichiari (Brescia). As always, the section that interests us is the Acquariology as we see there will be: Over 200 display tanks that will host, […]
DATA SHEET Scientific name: Thalassoma pavo Common name: Ornate Wrasse Taxonomic Classification Phylum: Chordata Class: Actinopterygii Order: Perciformes Suborder: Labroide Family: Labridae Genus: Thalassoma Species: T. pavo Description: This fish lives in salt water and is very much appreciated as it is one of the most colorful of the Mediterranean Sea. Tapered body, massive head, small mouth. […]
Also this year the fifth edition of the largest fair in Italy, PetsFestival, dedicated to pet animals, is ended. In the two days of the fair you could watch marine aquariums, cakes, reptiles, dogs, cats and various country shows. (In the end you can find our photo gallery of the event.) As for aquarium, which […]
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