Quart Fourn Mor’ Sci. Ve 38 USL, 8 
Maudreporite (Basat 1) 
Fig. 38. 
Oc § 
fe Dorsocenrtras 
Basal § 
Basal 3 
Dorsocentrat 
2 
/ feeced 
Watervascular Ring 
Intestine 
Limit PREC 
Lumat of LBC. 
H.Bury del. 
F. Huth, Lith” Edin? 
