Hydroginella angustata

Hydroginella angustata is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.[2]

Hydroginella angustata
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Muricoidea
Family:
Marginellidae
Subfamily:
Marginellinae
Genus:
Hydroginella
Species:
H. angustata
Binomial name
Hydroginella angustata
Boyer, Wakefield & McCleery, 2003[1]

Description

Distribution
gollark: But that makes this very mysterious.
gollark: I think it would make more sense as an attribute™ or something.
gollark: Broadly speaking, yes.
gollark: Oh hypermemetic ultrabees.
gollark: ```pythonfrom z3 import *iters = [ Int(f"x{i}") for i in range(40) ]solver = Solver()for n,x in enumerate(iters): if n == 0: solver.add(x == 1111111) else: last = iters[n - 1] solver.add(Or(x == last, (x * 2) == last, x == ((last * 3) + 1)))solver.add(iters[-1] == 1)print(solver.check())print(solver.model())```This is the *best* way to do collatz.

References
  1. Boyer, Wakefield & McCleery. 2003. Novapex 4 (2–3): 67–77. World Register of Marine Species, Retrieved 24 April 2010.
  2. Hydroginella angustata Boyer, Wakefield & McCleery, 2003. Retrieved through: World Register of Marine Species on 24 April 2010.


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