134 Transactions. — Zoology. 



Plate X. — continued. 



Fig. X. Diaschiza semiaperta. 

 Fig. x.a. „ the trophi. 



Fig. xi. Postclausa minuta. 



Fig. xi.a. „ the trophi. 



Fig. xii. Postclausa circularis. 



Fig. xii.a. „ portion of the food-mass in the stomach 



(enlarged). 



Plate XI. 

 Fig. xiii. Colurus gracilis. 

 Fig. xiii. a. „ dorsal view. 



Fig. xiii. 6. „ ventral view of lorica. 



Fig. xiv. Bletopidia acuminata. 

 Fig. XV. Mp.topidia solidus. 

 Fig. XV. a. „ ■ side view. 



Fig. XV.6. „ view of ventral half of lorica. 



Fig. xv.c. „ the trophi. 



Fig. xv.d. „ lorica of var. latusinus. 



Fig. xvi. Notholca regularis. 

 Fig. xvi. a. „ side view of posterior part of lorica. 



Art. XV.— -4 List of Marine Shells found at Whangarei 



Heads. 



By Charles Cooper. 



[Read before the Auckland Institute, 10th October, 1898.'] 



The district of Whangarei Heads is on the east coast of 

 Auckland Province, and about seventy miles north of Auck- 

 land. For the purposes of this paper the northern boundary 

 of the district is a line from Marsden Point to the Kauri 

 Mountain, and includes the entrance to Whangarei Harbour, 

 the coast-line to Bream Head, and from thence to the Kauri 

 Mountain. The country is mainly composed of volcanic 

 breccia, with dykes of diorite with some slate. There is a 

 good variety in the shore ; mudflats, sandy beaches, and heavy 

 boulders make it a favourable place for marine life. Inside 

 the Heads the water is more or less smooth, while outside the 

 beach is exposed to the full force of the waves of the open 

 ocean. 



The shells have been collected at various times by shore- 

 hunting and dredging by myself and friends, and I have to 

 thank Mr. H. Suter for his assistance in naming some of 

 them. 



Fam. LEPIDOPLEURID.E. 



Lepidopleurus inquinatus, Beeve. 



