Lexique Cypraea


Glossary unpretentious shown to help newbies and others! For a good understanding: we look at a Cypraea the back toward you, mouth off! Feel free to send me improvements possible.

Abdomen, ventral: below the shell base

Albinism: lack of drawing on the shell. Not always a white shell but a adult shell who has not done its ornamentation. This term is an error of terminology. See: Leucism.

Anterior siphon: opening just before.

Apex: the beginning (top) of the shell at the rear including protoconch and spires before the last turn, not always visible.

Apical: adjective in connection with the summit, the apex (protoconch, spire, suture ....)

Back, backbone,top: part of the shell bounded by the edges or margins.

Base, basal: beneath the shell bounded by the edges or margins.

Basal spot: one to four depending on the species.

Band: transverse colorful part of the shell. We count only colored band ones.

Beak: part of the shell in front of the back.

Bulliforme: development stage of the last lap without the base.

Columellar callus : thickness of the middle right side of the base.

Callus: Extra thickness of nacre on the edges or on the base. See nodulousity, stair, marginate.

Columella: axial part of the inner shells wrapped spiral.

Columellar tooth: teeth located on the columellar part of the base.

Crosslinking open, closed: drawing more or less densely dotted with circular holes closed or open reminiscent of a net. The''holes''correspond to the papillae of the mantle.

Deltoid: Shape of shell 4 sides viewed from above.

Dimples: successive small hollow along the margin.

Endemic, endemism. Living in one place in the world.

Griseifformis, griseoviridis: Form white, milky some shells. Ex green shells that pass with time.

Humpbacked, humped: shell on the back particularly high. Systematic in some (Cypraea mauritiana, Cypraea stercoraria). Outstanding among others (C.grayana, histrio) named f.Westralis.

Juvenile: stage of development: light, apparent apex, base present.

Labialis callus: thickness of the left side of the base (uncommon).

Lacuna, lacunae: hole, no drawing ,of circular form

Labial tooth: teeth located on the lip of the base.

Last lap test: all outside the shell.

Leucism: Excess white pigments. Explanations (in French, Sorry!)

Lineola: line more or less straight in the longitudinal direction.

Lip: edge of the opening labial side.

Mantel line or dorsal line: line on the back separating the two lobes. This is where the two parts of the mantle meet.

Mantel: soft part of the animal producing the shell and drawing.

Margin: decked out with a prominent edge.

Marbling: very small dots, lines, dark spread around the shell between the back and base.

Melanism, melanization: Disruption of the beast doing lot of additional drawings that cover each others. Excess melanin.

Metis: being nigerisation.

Mouth: front part of the opening often flared.

Niger, nigérisation: another term for melanism as they become all black.

Ocellus: white round often inhabited by a dark point.

Oliviformis: development stage of the columella.

Opening: refers to the open part of the base.

Peristome: expanded portion of the columella visible inside the shell. The columella ends with fossula.

Protoconch: Larval shell more or less visible depending on the species at the top of the apex often reduced to a point.

Pustule: small raised dots.

Pyriform: pear-shaped.

Umbilicated: apex protoconch down, invaginated.

Radula: all teeth of the animal form of tape was used to feed a movement back and forth.

Rhomboidal: shape shell has 4 or 6-sided view from above

Rostrated, rostrum, rostration: Extension of extremities and / or board, the base of the shell.

Stair: flatness of the base of the shell forming a ledge, a bulge.

Siphon anal or posterior: opening just behind.

Speck: very little white or black dots.

Stair: flatness of the base of the shell forming a ledge, a bulge.

Spire: spiral turns between protoconch and final lap.

Stria, striated: teeth very fine and numerous on the peristome or fossula.

Subjunior: stage of growth: light shell, finished base, apex apparent early ornamentation.

Suture: portion between two towers of the spire,few useful for Cypraea but much more for the olives and cones.

Spot marginal: spots or points on the edge can extend to the base.

Terminal spots: spots present on the beak or on the spire.

Test: shell by itself in its entirety

Testophyle, testologue: former name of conchyophyles and conchyologues.

Tubercle: round bumps on the shell and / or edge appearing on mature specimens or particularly accomplished.

Verdisme, green: green color that ranges from cloudy to opaque covering the original design. Lasts a while and then goes to white / cream. See griseifformis. The green is chlorophyll fixed by cyanobacteria, which chlorophyll disappears over time as the shell dry and lack of light.

Westralis (f): gibbous, humped shape of C. histrio described by Iredale 1935. This name began to be applied to Cypraea developing exceptionally this form.