Caecum johnsoni

Caecum johnsoni, common name the Johnson's caecum, is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Caecidae.[1]

Johnson's caecum
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Littorinimorpha
Superfamily:
Rissooidea
Family:
Caecidae
Genus:
Caecum
Species:
C. johnsoni
Binomial name
Caecum johnsoni
Winkley, 1908

Distribution

Description

The maximum recorded shell length is 4.5 mm.[2]

Habitat

Minimum recorded depth is 0 m.[2] Maximum recorded depth is 75 m.[2]

gollark: This is why we should replace inconsistent and hard to render maths notation with glorious S-expressions.
gollark: ... what even
gollark: There was some nice elegant explanation I forgot. IIRC it's something to do with the derivative of e^x being equal to itself.
gollark: I assume you're doing binomial distributions if whatever A-level spec you do is similar to mine, which it probably is, in which case I don't think they cover anything more advanced than trial and error/look at a table for that. Although it's probably <=/>= instead of = 0.02, as there's no guarantee that there is any x satisfying the = version.
gollark: It *also* matters how it's distributed.

References
  1. Caecum johnsoni Winkley, 1908. Rosenberg, G. (2010). Caecum johnsoni Winkley, 1908. Accessed through: World Register of Marine Species at http://www.marinespecies.eu/aphia.php?p=taxdetails&id=160147 on 9 August 2010 .
  2. Welch J. J. (2010). "The "Island Rule" and Deep-Sea Gastropods: Re-Examining the Evidence". PLoS ONE 5(1): e8776. doi:10.1371/journal.pone.0008776.


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