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The exterior of the shell of this species is reddish-purple in color, often with some white blotches. The shell has between 5 and 8 open respiratory pores along the margin. These holes collectively make up what is known as the selenizone which form as the shell grows. The snail shell grows to approximately 70 millimetres (2.8 in) in length.
Haliotis pirimoana, commonly the Manawatāwhi pāua, [1] is a species of edible sea snail, a marine gastropod mollusk in the family Haliotidae, the abalone. Description [ edit ]
The iridescent nacre that lines the inside of the shell varies in color from silvery white, to pink, red and green-red, to deep blue, green to purple. The animal shows fimbriated head-lobes. The side-lobes are also fimbriated and cirrated. The rounded foot is very large. The radula has small median teeth, and the lateral teeth are single and ...
The white abalone, scientific name Haliotis sorenseni, is a species of large sea snail, a marine gastropod mollusk in the family Haliotidae, the abalone. [3]The white abalone is an endangered species in the United States; it may now have the smallest population of all eight of the abalone species on the west coast of North America.
Pāua are gathered recreationally and commercially, with strict catch limits are set for both. For recreational fishermen this is five pāua per person per day. The minimum legal size for caught pāua is 125 mm (5") for Haliotis iris and 80 mm (3 + 1 ⁄ 4") for Haliotis australis, measured in a straight line at the greatest length of the shell ...
Haliotis rubiginosa, common name the Lord Howe abalone, is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalone. [ 2 ] This species was previously stated as a synonym, subspecies or form of Haliotis varia Linnaeus, 1758 [ 3 ]
Pythium disease, also known as "Pythium blight," "cottony blight," or "grease spot," is a highly destructive turfgrass disease caused by several different Pythium species. All naturally cultivated cool-season turfgrasses are susceptible to Pythium and if conditions are favorable to Pythium it can destroy a whole turfgrass stand in a few days or less. [1]
Turf melting out begins as black to purple spots on the leaf blades. These spots eventually appear on the leaf sheaths. The fungus then begin to move down and invade the crowns and the roots of the plants. From far away, the turf appears yellow or blackish brown. The colors that appear on the turf directly reflect the nitrogen levels in the ...