Microdrillia crispata

Microdrillia crispata is an extinct species of sea snail, a marine gastropod mollusk in the family Borsoniidae.[1]

Microdrillia crispata
Shells of Microdrillia crispata (specimen at MNHN, Paris)
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Caenogastropoda
Clade: Hypsogastropoda
Clade: Neogastropoda
Superfamily: Conoidea
Family: Borsoniidae
Genus: Microdrillia
Species:
M. crispata
Binomial name
Microdrillia crispata
(Cristofori & Jan, 1832)
Synonyms[1]
  • Pleurotoma crispata Cristofori & Jan, 1832 (original combination)
  • Pleurotoma renieri Scacchi, A., 1835

There is one subspecies: Microdrillia crispata vatreni Della Bella & Tabanelli, 1986

Description

The length of the shell attains 5 mm. The shell is acuminately turreted. The whorls are convex, with numerous prominent revolving carinae, the interstices narrow, obliquely longitudinally striated. The color of the shell is white, the apex tinged with fuscous. The siphonal canal is very short. The sinus is ample.[2]

Distribution

This extinct marine species has been found in Northeast Brasil. It also occurred in the Upper Pliocene of Romagna, Italy.

gollark: The two reactors powering my base right now, not running very often since the quarries are off. (EDIT: oops, second picture is before coolers were added)
gollark: I only put 190 or so in.
gollark: I basically just attempted to go for high-efficiency things with as many moderators as possible, so glowstone was good.
gollark: Ah, they're quite good but I just don't actually end up needing them in my designs, I see.
gollark: Are liquid helium coolers actually that good anyway?

References
  1. Rosenberg, G. (2015). Microdrillia crispata (Cristofori & Jan, 1832). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php/aphia.php?p=taxdetails&id=533094 on 2016-03-16
  2. "G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences". ia600307.us.archive.org. Retrieved 16 March 2016.
  • Chirli (C.) & Richard (C.), 2008 Les Mollusques plaisanciens de la Côte d’Azur, p. 1–128
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