Crassispira pseudoprincipalis
Appearance
Crassispira pseudoprincipalis | |
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Image of a shell of Crassispira pseudoprincipalis | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Gastropoda |
Subclass: | Caenogastropoda |
Order: | Neogastropoda |
Superfamily: | Conoidea |
Family: | Pseudomelatomidae |
Genus: | Crassispira |
Species: | C. pseudoprincipalis
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Binomial name | |
Crassispira pseudoprincipalis (Yokoyama, 1920)
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Synonyms | |
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Crassispira pseudoprincipalis is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.[1]
Description
The length of the shell attains 27.5 mm, its diameter 8.3 mm.
According to Makiyama (1927, p. 104), Japanese specimens of this species differ from Crassispira bataviana (Martin, 1895) in having a shorter siphonal canal. The same appears to be true of the Okinawan and Formosan specimens.
This section needs expansion. You can help by adding to it. (September 2018) |
Distribution
Fossils have been found in Miocene in Japan and in Pliocene strata in Okinawa, Japan.
References
- Yokoyama, 1920. Tokyo Imp. Univ. Coll. Sci. Jour., v. 39, art. 6, p. 37,
- Yokoyama, 1926, Tokyo Imp. Univ. Fac. Sci. Jour., sec. 2, v. 1, pt. 9, p. 330pi. 1, fig. 21.
- Makiyama, 1927, Kyoto Imp. Univ. Coll. Sci. Mem., ser. B, v. 3, no. 1, art. 1, p. 104; 1931, ser. B, v. 7, no. 1, art. 1, p. 7
- Nomura, 1935, Tohoku Imp. Univ. Sci. Repts., 2d ser., v. 18, no. 2, p. 124, pi. 6, fig. 38.
- Hatai and Nisiyama, 1952, Tohoku Univ. Sci. Repts., 2d ser., spec. v. 3, p. 232