Superfamily Cerithioidea | Scientific name Semisulcospira kurodai Rank Species | |
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Similar Semisulcospira, Pleuroceridae, Sorbeoconcha, Semisulcospira libertina, Caenogastropoda | ||
Semisulcospira kurodai is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Semisulcospiridae. Prior to 2009, this species was classified in the family Pleuroceridae.
Contents
Distribution
This species occurs in Japan.
Description
The maximum width of the shell of Semisulcospira kurodai is 13.3 millimetres (0.52 in) and 52.0 millimetres (2.05 in) in height in the laboratory. The maximum weight of the animal is 7.7 grams (0.27 oz) in the laboratory.
The width of the shell is 10.3 millimetres (0.41 in) in the first year, 11.0 millimetres (0.43 in) in the second year, 11.5 to 11.8 millimetres (0.45 to 0.46 in) in the third year and 12.0 millimetres (0.47 in) in the fourth year in the laboratory.
The diploid chromosome number of Semisulcospira kurodai is 2n=35 and 2n=36 (both chromosome numbers were observed).
Habitat
Semisulcospira kurodai lives in rivers and in ponds.
Life cycle
The female has 17 to 72 embryos in its brood pouch. One female can give life to 62 to 79 newborn snails in the laboratory.
The average size of the shell of a newborn snail varies according to the locality from 1.2 to 1.4 millimetres (0.047 to 0.055 in) in width and from 1.9 to 2.1 millimetres (0.075 to 0.083 in) in height of the shell.
Semisulcospira kurodai can live up to four years in the laboratory.