Capsosiphon fulvescens
- kingdom: Plantae
- phylum: Chlorophyta
- class: Ulvophyceae
- order: Ulvales
- family: Capsosiphonaceae
- genus: Capsosiphon
- species: Capsosiphon fulvescens
Frederikshavn
North Denmark
DenmarkBridgeport
Stratford
ConnecticutHampton
Hampton Falls
New HampshireCold Spring Harbor
Laurel Hollow
New YorkNewport
Rhode Island
United States