Description

“Vulsella spongarium. Vul. testâ oblongâ, arcuatâ, ad basin latiusculâ, umbonibus divergentibus, radiatim minutissimè crenulato-squamatâ; fuscenscente.

 

THE SPONGE Vulsella. Shell oblong, arched, rather broad at the base, umbones diverging, radiately very minutely crenulately scaled; light-brown.

 

LAMARCK, Anim. san vert. vol. vii. p. 268.

 

Hab. Suez.

 

Although it is a generic character of the Vulsellæ to have the umbones diverge from each other with advancing growth, they appear to be more than usually divergent in this species.”

 

(Reeve, 1858)