PARASITOLOGY, VOL. IV. NO. 4 
PLATE XXIII 
Transverse muscles 
Basement membrane j ' 
CuT/cala j Loni^itudina/ muscles j 
a \ 1:. 
Parenchyma nuclei / SubcuticuTarcell 
Sub-dermal-muscle 
19 
5 =' '"Basement 
membrane ~ 
Trdnsverse 
muscles 
'lon^itudin a! 
muscles 
20 
"Subcuficular 
ce//5 
Parenchyma 
Vl iel lari a 
V 
./. del. 
Tetrarhynchus erinaceus: integument, musculature, etc, 
