LAMELLISABELLA MINUTA 



441 



The papillae bear oval cuticular plaques with a dark bow-shaped or straight 

 thickening, usually measuring about 4-Oju. across (Fig. C169£, F). There is 

 no zone of thickened papillae. 



There are two girdles of toothed 

 platelets (Figs. A169, D169), both 

 broken only on the ventral side (Fig. 

 El 69Л, B). The yellowish toothed 

 platelets, 15-23^ long, are arranged in 

 two, or in places three, irregular rows 

 (Fig. E169C). They are greatly elon- 

 gated and their shape is characteristic. 

 The front part of the platelet, bearing 

 the anterior group of teeth, is small 

 and rather sharply detached ; it usually 

 takes up only a fifth of the total 

 length of the platelet (Fig. E169D). 



The postannular region of the meta- 

 soma has frequent metameric trans- 

 verse rows of three to five conical 

 ventral papillae (Figs. D169, El 695), 

 of which the median papilla is larger 

 than the others. The plaques take the 

 form of dark transverse cuticular rods, 

 slightly bent forward and measuring 

 26-32/x across (Fig. E169£). 



Fig. D169. Lamellisabella 

 minuta: the region of the 

 girdles and the front end of 

 the postannular region, 

 from the right. 

 an - girdles; pa - papillae; 

 pan - postannular region; 

 v - ventral papilla behind 

 the girdles. 



