Sentence Examples with the word Pterobranchia

The connexion of the Pterobranchia with the Polyzoa is in the highest degree questionable.

The affinity of the Pterobranchia to the Enteropneusta may be regarded as definitely established.

In spite of these difficulties it must be conceded that the dorsal flexure of the alimentary canal of the Pterobranchia is very Phoronis-like.