Cristispira

Cristispira is a genus of bacteria of the spirochaete phylum. They are known as large spirochetes. They are characterized by the host species in which they reside.^[4] They are known as harmless parasites of freshwater and marine molluscs and gastropods. They have an unusually large number of periplasmic flagella.

Cristispira
Scientific classification
Domain:	Bacteria
Kingdom:	Pseudomonadati
Phylum:	Spirochaetota
Class:	Spirochaetia
Order:	Spirochaetales
Family:	Borreliaceae
Genus:	Cristispira Gross 1910
Type species
"Cristispira pectinis" Gross 1910
Species[1][2]
"C. anodontae" (Keysselitz 1906) Gross 1912 "C. balbiani" (Certes 1882) Gross 1910 "C. interrogationis" Gross 1910 C. pectinis Gross 1910 "C. pinnae" Gonder 1908) Gross 1910[3]

Morphology

They are differentiated from other spirochetes by the presence of a crestlike structure called the crista.^[4] Their cell bodies are flexible. The cell diameter is 28 to 120 micrometers. They are actively motile.^[3]