Figure 2.02
The Four Basic Chordate Characteristics
Invertebrates
Vertebrates
Protochordates
Chordates
Figure 2.07
Enteropneusta: acorn worms
Hemichordata
Pterobranchia: pterobranchs
Hemichordata
Figure 2.07
Figure 2.16
Urochordata: Ascidians (sea squirts)
Figure 2.16
Figure 2.16
Figure 2.16
Urochordata: Larvaceans
Figure 2.07
Cephalochordata: Amphioxus
Fig. 31.07(TE Art)
Chordata
Arthropoda
Annelida
Segmentation (Metamerism)
Epibranchial groove
Endostyle