Platb II. 

 External appearance of Teras I. 

 Fig. 1. Three-quarter front view from the right. 

 Fig. 2. Ventral view. 



a., Median eye; b., right (outer) eye of A; b'.. Right (.outer) ear of A; 

 c, Left (outer) eye of B; c'., Left (outer) ear of B; d., Snout of A; e., Snout 

 of B: f.. Right fore limb: g., Left fore limb; h., Right hiud limb; i.. Left 

 hind limb ; t., Tail ; u., imibilical cord. 



