220 



Girdle. — -Olive-green, one-third of area. Mossy, owing to its 

 being covered with short yellowish-white spicules, larger at 

 margin, forming a dense fringe. Tufts, seven each side at inter- 

 section on valves. Four on anterior valves. Sutural tufts coarse 

 and spear-shaped, closely appressed towards the apex of the 

 valves. Specimen in formalin. Length, 6 mm. ; breadth, 2| mm. 



Habitat. — Middleton, Encounter Bay, South Australia ; one 

 specimen only on rocks discovered by Dr. Torr. 



EXPLANATION OF PI.ATES VI and VII. 



a. Dorsal view of entire shell. 

 />. Anterior valve. 



c. Median valve. 



d. Posterior valve 



e. Lateral view of posterior valve, 



f. Portion of girdle magnified. 



g. Life size, lateral view. 

 Fig. 



1. Chiton Verconis, n. sp. 



2. Aeanthochites crocodilus, n. sp. 



cornutus, n. sp. 

 Verconis, n. sp. 

 Maughani, n. sp. 

 exilis, n. sp. 

 Tatei, n. sp. 



