100 



PLUMATELLA PUNCTATA. 



Specific character. — Coenoecium adherent, creeping ; cells cylindrical, narrow, destitute of 

 furrow and keel. Statoblasts elongated. 



Synonym. — 1848. Plumatella repens. Van Beneden, Eeclierches sur les Bryoz., fluv. de Belg. 

 p. 21, pi. 1, figs. 1 — 4, Mem. de I'Acad. Roy. de Belg., 1848. (Original 

 figures.) 



Iconography. — Original figures of Van Beneden. 



Habitat. — Stagnant waters ? adhering to submerged surfaces. 



Localities. — British: None. 



Foreign : Brussels and Louvain. Fan Beneden. 



The present species has been formed for the Plumatella repens, Van Beneden, which, as 

 lias already been said, cannot be referred to the original Tubularia repens of Miiller, the 

 animal which all naturahsts must now take as the model for the identification of the true 

 Plumatella repens. 



The narrow, cylindrical tubes and elongated statoblasts of P. stricta approach it to 

 P. emarginata, from which, however, it is separated by the absence of a furrow. 



" We have never," says M. Van Beneden, in his account of this species, " seen the 

 polypary assume that fungoid aspect which is peculiar to the adult Alcyonella. The tubes 

 remain always separated and even considerably elongated from one another. The parent 

 branches lie prostrate upon the surface of the leaves to which they are attached, but new 

 buds often rise from them at a right angle. 



" The polypary has often a yellow tint ; its walls are less opaque than in the other 

 species" {P. campanulata. Van Ben.) 



3. Plumatella punctata, Hancock. 



Fig. 15.* 



* Figure copied from Hancock. 



