Individual zooids may grow to 3 millimetres (0.12 in) in size, with colonies reaching 50 millimetres (2.0 in) long .

This species can be distinguished from Botrylloides sp.
by the pattern of zooid growth.
B. schlosseri zooids emanate from a center in the manner of the arms of a star.
Also, there usually are fewer zooids per cluster (5–8 in B. schlosseri and 10 or more in Botrylloides).
There are many colors in which this species can be found, ranging from orange, blue and grey.
A colony can be easily be separated from the main body to form an independent colony usually referred to as a subclone.
Two colonies may also fuse together if they share common alleles for historecognition.
Individual zooids may grow to 3 millimetres (0.12 in) in size, with colonies reaching 50 millimetres (2.0 in) long .
This species can be distinguished from Botrylloides sp. by the pattern of zooid growth. B. schlosseri zooids emanate from a center in the manner of the arms of a star. Also, there usually are fewer zooids per cluster (5–8 in B. schlosseri and 10 or more in Botrylloides). There are many colors in which this species can be found, ranging from orange, blue and grey. A colony can be easily be separated from the main body to form an independent colony usually referred to as a subclone. Two colonies may also fuse together if they share common alleles for historecognition.
Botryllus schlosseri