''Crisilla picta'' is a
species of minute
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 ...
with an
operculum; this organism is a
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
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 or
micromollusk
A micromollusk is a shelled mollusk which is extremely small, even at full adult size. The word is usually, but not exclusively, applied to marine mollusks, although in addition, numerous species of land snails and freshwater mollusks also ...
in the family
Rissoidae
Rissoidae is a large family of very small and minute sea snails with an operculum, marine gastropod mollusks in the superfamily Rissooidea and the order Littorinimorpha.
Distribution and habitat
This family of snails is found worldwide. They ...
.
Distribution
*
Madeira
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, song_type = Regional anthem
, image_map=EU-Portugal_with_Madeira_circled.svg
, map_alt=Location of Madeira
, map_caption=Location of Madeira
, subdivision_type=Sovereign st ...
Original description
''Crisilla picta'' was originally collected by Reverend
Robert Boog Watson
Robert Boog Watson FRSE (26 September 1823 – 23 June 1910) was a Scottish malacologist and minister of the Free Church of Scotland best known as the author of the report on the Scaphopoda and Gastropoda collected during the H.M.S. ''Challen ...
in Madeira and it was sent to British malacologist
John Gwyn Jeffreys, who described it as a new species under name ''Rissoa picta'' in 1867.
Jeffreys's original text (the type description) reads as follows:
The height of the shell is .
The width of the shell is .
References
This article incorporates public domain text from reference
[ Jeffreys J. G. (1867). "Description of a new species of ''Rissoa'' from Madeira". '' Annals and Magazine of Natural History'' (3)19]
435
{{Taxonbar, from=Q5185928
Crisilla
Molluscs of Madeira
Gastropods described in 1867
Taxa named by John Gwyn Jeffreys