Английская Википедия:Eucyclotoma albomacula
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Speciesbox
Eucyclotoma albomacula is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.[1] It was first described by E. Alison Kay in 1979 and is distinguished by a single spiral keel on each whorl with axial white stripes; the species name (albomacula) is derived from the Latin albo (white) and macula (speck or spot).[2]
Description
The shell varies greatly in length, with specimens ranging in size from 2Шаблон:Nbspmm to 8Шаблон:Nbspmm (0.08Шаблон:Nbsp-Шаблон:Nbsp0.31Шаблон:Nbspinches).[3] The holotype has a diameter of 2Шаблон:Nbspmm (0.08Шаблон:Nbspinches) and a length of about 7.75Шаблон:Nbspmm (0.3Шаблон:Nbspinches). The shell is tall-spired, thin, with a sloping spiral keel on each whorl. The shell is described as glossy, chestnut brown with three axial streaks of white colour. Its spire consists of a protoconch of two and a half whorls, a teleoconch of c. nine whorls, and an indistinct suture marked by a spiral head and a linear spiral of white and brown. It has a widely oval aperture about one-fifth the total length of the shell, a thin outer lip with protrusions of the spiral keels.[2]
Distribution
Eucyclotoma albomacula are rare, found at mesophotic depths between 59Шаблон:Nbspm to 195Шаблон:Nbspm (194Шаблон:Nbsp-Шаблон:Nbsp640Шаблон:Nbspft). They are thought to be endemic to the Hawaiian Islands.[3] The holotype was collected at a depth of 60Шаблон:Nbspm (197Шаблон:Nbspft), in Kepuhi Point, O'ahu. Specimens have been collected from Lāna'i, Ni'ihau, French Frigate Shoals, Laysan, Salmon Bank, Pearl and Hermes Atoll, Midway Atoll, and Kure Atoll.[3]
This table does not represent every specimen of Eucyclotoma albomacula collected, merely specimens in possession of the Bernice P. Bishop Museum, Honolulu, Hawaii.
See also
References
- Severns, M. (2011). Shells of the Hawaiian Islands - The Sea Shells. Conchbooks, Hackenheim. 564 pp.
- Liu J.Y. [Ruiyu] (ed.)(2008). Checklist of marine biota of China seas. China Science Press. 1267 pp
External links
- Шаблон:Cite journal
- Kay, E. A. (1979). Hawaiian marine shells. Reef and shore fauna of Hawaii. Section 4: Mollusca. Bernice P. Bishop Museum Special Publications. 64xviii + 1-653
- Moretzsohn, Fabio, and E. Alison Kay. "HAWAIIAN MARINE MOLLUSCS." (1995)