Abhandl. 
d.Senckenb. naturf. Gesellsch. 
v. Reinach. Tal. XX. 
5 
‘oO 
aan Q 
as Ay 
= \S 
So IS 
N N 
Ptychogaster francofurtanus n. sp., vom Nordbassin, nat. Gr. 
Museum der Senckenb, naturf, Ges. 
