Coriocella nigra is a species of sea snail, a marinegastropodmollusk in the familyVelutinidae. An Indo-Pacific species, it lives on rocks at depths of up to 15 m. It is up to 10 cm long and has an internal shell; body color is black or brown. C. nigra is probably a predator of tunicates.
Taxonomy
This species was described as Coriocella nigra by French zoologist Henri Marie Ducrotay de Blainville in 1824 and he placed it in the newly established genus Coriocella as its only species at that time.[1]Coriocella nigra is the type species of the genus Coriocella.[5] Nowadays, at least six other species are recognized in the genus Coriocella and Blainville's binomial name is still treated as valid and in use.[6]
The color of the body may vary from uniformly velvety black to brown.[16][21] The mantle is broadly tuberculate.[16] The borders of the mantle are delicate, notched in front and spreading out widely. The foot is small and oval.[22] There are four or five lobes or bosses on the dorsal part of its body.[4][16] There is an inhalant siphon extended in the middle of the front part of the body.[20] The tentacles are triangular, granulated and are spotted with white.[20][4] There are brown eyes at the base of the tentacles. The front part of the foot is grooved. There is a jaw and a radula with 48 teeth in the mouth.[4] The body length is usually about 80 mm.[14] The body length varies from 15–18 mm up to 10 cm.[4][21] The width of the body is 8–10 mm (in body length 15–18 mm).[4]
C. nigra has an internal and reduced shell, and spirally rolled radula, as have all the members of the family Velutinidae.[13] The shell is conchinous and it has 2½ or three whorls.[14][4] Whorls are expanding rapidly and the last whorl cover four fifths of the shell height. The color of the shell is translucent white. The shell is smooth with irregular growth lines. The aperture is large.[14] Shell width is 6.3 mm (for a shell length of 10 mm). Shell length varies from 10 mm to 30–40 mm.[4][23]
C. nigra is carnivorous. Its probable prey are tunicates,[13] including tunicates from the family Didemnidae in Hawaii. Its fecal pellets are oval and layered.[20] Sclerites of Octocorallia have also been found in its gut.[4]
^ abcBlainville H. M. D. de. (1824). "Mollusques, Mollusca". In: Dictionnaire des Sciences Naturelles (F. Cuvier, ed.), vol. 32. Levrault, Strasbourg et Paris, & Le Normant, Paris. 1–392. page 259. (1825). page 466, plate 42, figure 1.
^Bergh L. S. R. (1853). "Bidrag til en monographi af Marseniaderne, en Familie af de Gastraeopode Mollusker. En critisk, zootomisk, zoologisk Undersmgelse". Kongelige Danske Videnskabernes-Selskabs Skrifter, Naturvidenskabelig og Mathematisk Afdeling. 5(3): 239–359, 5 pls. page 343, table 5, figure 2.
^Taki I. (1972). "ON A NEW SPECIES OF LAMELLARIA (L. UTINOMII, N. SP.) FROM SHIRAHAMA, WAKAYAMA PREFECTURE, JAPAN (MOLL., GASTROPODA)". PUBLICATIONS OF THE SETO MARINE BIOLOGICAL LABORATORY21(1): 1–12. PDF.
^Ciavatta M. L., Lefranc F., Carbone M., Mollo E., Gavagnin M., Betancourt T., Dasari R., Kornienko A. & Kiss R. (2017). "Marine Mollusk‐Derived Agents with Antiproliferative Activity as Promising Anticancer Agents to Overcome Chemotherapy Resistance". Medicinal research reviews37(4): 702–801. doi:10.1002/med.21423.
^ abNakin M. D. V. & Somers M. J. (2007). "Shell availability and use by the hermit crab Clibanarius virescens along the eastern Cape coast, South Africa". Acta Zoologica Academiae Scientiarum Hungaricae53(2): 149–155.
^Marcus E. D. B. R. (1986). "On Coriocella nigra (Blainville, 1824), gastropoda prosobranchia Lamellariidae, from the Gulf of Elat". Israel Journal of Zoology34(1–2), 1–11.
^ abKumar J. Y., Raghunathan C. & Venkataraman K. (2015). "Research Article A report on some symbiotic shrimps (Crustacea: Decapoda) from the Andaman and Nicobar Islands, India". Sch. Acad. J. Biosci.3(1B): 113–119. PDF.
^ abcdWouters K. (1991). "A new species of the genus Pontocypria (Crustacea, Ostracoda), commensal of a lamellariid gastropod". ''Bulletin. Institut Royal des Sciences Naturelles de Belgique. Mededelingen. Koninklijk Belgisch Instituut voor Natuurwetenschappen61: 65–71. PDF.
^ abcdeBeechey D. (2017). "Coriocella nigra".The Seashells of New South Wales, last change 14 April 2017, accessed 5 October 2017.
^Tröndlé J. & Boutet M. (2009). "Inventory of marine molluscs of French Polynesia". Atol Research Bulletin570: 1-87.
^Héros V., Lozouet P., Maestrati P., von Cosel R., Brabant D. & Bouchet P. (2007). "Mollusca of New Caledonia". In: Payri, C. & Richer De Forges, B. (Eds) Compendium of marine species of New Caledonia. Doc. Sci. Tech. IRD, Nouméa. II7(2): 199–254. PDF.
^ abRudman W. B. (Oct 5 1999). "Comment on Coriocella nigra from Japan by H. Ono". [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/1400 Accessed 5 october 2017.
^ abcdefPittman C. & Fiene P. "Coriocella nigra". Sea Slugs of Hawaii by Cory Pittman & Pauline Fiene. Accessed 5 october 2017.
Wellens W. (1998). "Redescription of Coriocella nigra de Blainville 1825 and Chelyonotus tonganus Quoy and Gaimard 1832 (Gastropoda: Prosobranchia: Lamellariidae)". Journal of Conchology36: 43–61.
(in Japanese) 沼波秀樹, 関田梨恵 & 荒井碧. (2007). "P16. 殻が内在するイボベッコウタマガイ (腹足綱: ハナヅトガイ科) の生き残り戦略 (日本貝類学会平成 19 年度大会 (豊橋) 研究発表要旨)". Venus: journal of the Malacological Society of Japan66(1): 122. CiNii.
Tryon G. W. (1882). Structural and systematic conchology: an introduction to the study of the Mollusca. volume I, Philadelphia, published by the author. plate 62, figure 62-63.