Scrippsiella velellae

Class: 
Dinophyceae
Order: 
Peridiniales
Family: 
Thoracosphaeraceae
Genus: 
Scrippsiella
Species: 
velellae
Authority: 
Banaszak, Iglesias-Prieto & Trench in Trench 2000

Diagnosis

Unicellular alga symbiotic, located in hospite as coccoid (non-motile) cells 1’7-1 8 pm in diameter, within endodermal cells of the gonophores and medusae, dividing mitotically in the coccoid state in lzospite and in culture. Large nucleus with approximately 90 chromosomes; nuclear envelope comprised of two membranes with pores. Chloroplast envelope comprised of three membranes; chloroplast thylakoids predominantly in groups of two; two pyrenoids with invasive chloroplast thylakoids. “Accumulation body” present in host and in culture. Trichocysts present in hospite and in culture.

Type species

The type species (holotype) of the genus Scrippsiella is Scrippsiella sweeneyae Balech ex A.R.Loeblich III.

Observation site(s)

HOSTS

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Association with... Region origin Name of site In reference...
Velella velella California Coast Santa Barbara