''Daphnella intercedens'' is a species of

sea snail Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...

, a marine

gastropod The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...

mollusk in the family

Raphitomidae Raphitomidae is a family of small to medium-sized sea snails, marine gastropod mollusks in the superfamily Conoidea.Bouchet P. & Rocroi J.-P. (Ed.) (2005). "Classification and nomenclator of gastropod families". ''Malacologia'' 47(1-2). . 39 ...

Description

The length of the shell is 5 mm, its diameter 2 mm. (Original description) The small, delicate, thin shell has a fusiform shape. it is white with a partial pale yellow suffusion. It contains 7

whorl A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs). Whorls in nature File:Photograph and axial plane floral ...

s, of which three are in the

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...

. These are globose, semidiaphanous, white, shining, the third being microscopically longitudinally striate. The subsequent whorls, all impressed suturally, are closely longitudinally ribbed. These ribs are close, shining, and smooth, obliquely flexuose, with the interstices finely spirally striate. The aperture is ovate-oblong. The outer lip is thin, but hardly adult. The columellar margin is oblique. The

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

is abbreviate.J.C. Melvill, Descriptions of twenty-one Turridae (Pleurotomidae) from various localities in the collection of Mr. E.R. Sykes; Proceedings of the Malacological Society of London v. 14–15 (1920-1923)
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Distribution

This marine species occurs off Cuba.

References

{{DEFAULTSORT:Daphnella Intercedens intercedens Gastropods described in 1923