Titan acorn barnacle
A species of Megabalanus Scientific name : Megabalanus tintinnabulum Genus : Megabalanus
Titan acorn barnacle, A species of Megabalanus
Botanical name: Megabalanus tintinnabulum
Genus: Megabalanus
Content
Description
Photo By Karunakar Rayker , used under CC-BY-2.0 /Cropped and compressed from original 
Description
M. tintinnabulum is a large barnacle, barrel-shaped or narrowly conical, up to 5 cm (2 in) tall and 6.5 cm (2.6 in) in diameter. It is distinguished from other members of the genus by having ungrooved growth ridges on the scutum and by the parietes having no spines or spiny projections. The parietes can be either rough or smooth, and they are sometimes slightly folded. The basal margin of the shell is either straight or slightly sinuous. The colour is a pale shade of reddish or bluish purple, sometimes streaked longitudinally with a darker or lighter shade and sometimes with transverse bands of colour.
* Disclaimer: The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.
Scientific Classification
Phylum
Arthropods Class
Maxillopoda Order
Sessile barnacles Family
Balanidae Genus
Megabalanus Species
Titan acorn barnacle 
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