268 DOMBEYAN GASTROBRANCHUS. 



European species : eyes and nostrils imperceptible : 

 colour uncertain: tail rounded at the extremity, 

 and terminated by a very shallow fin united with 

 the anal. Native of the South- American seas : 

 observed by Mons^ Dombey, and described by 

 Cepede from the dried s}dn in the Paris Museum. 



