spider conch facts
[40], Many details about the anatomy of Aliger gigas were not well known until Colin Little's 1965 general study. You may also click here to browse the category. More Spider conch have a number of sexual dimorphism characteristics making it relatively easy to differentiate between sexes. Queen conch populations have been rapidly declining throughout the years and have been mostly depleted in some areas in the Caribbean due to the fact that they are highly sought after for their meat and their value. [75] In central Mexico, during rain ceremonies dedicated to Tlaloc, the Maya used conch shells as hand protectors (in a manner similar to boxing gloves) during combat. [32][34][35], The overall shell morphology of A. gigas is not solely determined by the animal's genes; environmental conditions such as location, diet, temperature and depth, and biological interactions such as predation, can greatly affect it. Spiders are arachnids, a class of arthropods that also includes scorpions, mites, and ticks. We use cookies to give you the best experience. [1] The color of the shell is highly variable, being white or cream externally and often presenting brown, purplish or bluish black patches. "Shells and shell objects from an Indian site on Magueyes Island, Puerto Rico". The porcelain crab Porcellana sayana is also known to be a commensal and a small cardinalfish, known as the conch fish (Astrapogon stellatus),[36] sometimes shelters in the conch's mantle for protection. [65], Aliger gigas is a prey species for several carnivorous gastropod mollusks, including the apple murex Phyllonotus pomum, the horse conch Triplofusus papillosus, the lamp shell Turbinella angulata, the moon snails Natica spp. 18 Votes Human capture and consumption dates back into prehistory. [18] A. gigas has a long extensible snout with two eyestalks (also known as ommatophores) that originate from its base. These large sea snails typically reside in seagrass beds, which are sandy plains covered in swaying sea grass and associated with coral reefs, although the exact habitat of this species varies according to developmental age. A. gigas is very often parasitized by protists of the phylum Apicomplexa, which are common mollusk parasites. Ref: https://en.wikipedia.org/wiki/Harpago_chiragra. [51] The number of eggs per egg mass varies greatly depending on environmental conditions such as food availability and temperature. [88], The queen conch fishery is usually managed under the regulations of individual nations. According to the Singapore Red Data Book: it is "rare and no longer as abundant as in the Read on! [8][16][33] The shell is very solid and heavy, with 9 to 11 whorls and a widely flaring and thickened outer lip.

Males particularly tend to grow much larger and are more robust than females. Spider conch are seasonal breeders. Conches also develop wider and thicker shells with fewer but longer spines in deeper water. Please select from the available Aquarium Supplies below. Ref: https://en.wikipedia.org/wiki/Harpago_chiragra. [60] Juveniles inhabit shallow, inshore seagrass meadows, while adults favor deeper algal plains and seagrass meadows. } It is a vegetation usually feeding on red algae. [16][31][67] Crustaceans are also conch predators, such as the blue crab Callinectes sapidus, the box crab Calappa gallus, the giant hermit crab Petrochirus diogenes, the spiny lobster Panulirus argus and others. [81], Research into the conch shell's unique architecture is currently under way at MIT.[82][82]. This erroneous idea originated in the writings of Jean-Baptiste Lamarck, who classified strombids with other supposedly carnivorous snails. It is an especially important food source for large predators like sea turtles and nurse sharks. [37], Strombid gastropods were widely accepted as carnivores by several authors in the 19th century, a concept that persisted until the first half of the 20th century. Status and threats: The Black-lipped conch and Spider conch are listed as 'Vulnerable' on the Red List of threatened animals of Singapore, while the Dark Diana conch is listed as 'Critically endangered'. [95], Clench, W. J.

(1937). The Spider Conch's shell shape is unparalleled in the home aquarium making for a unique addition to any tank Queen conch has an average of 7 years to live, though they can sometimes go up to 20 to 30 years.


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