176 Transactions. — Zoology. 



Obder II.— HETEEOMYAEIA. 



Mytilidse. 



230. Mytilus magelJ aniens, Lam. A few dead shells picked up 



near Lake Takapuna. 



231. M. latus, Cli. Abundant on exposed rocks, aud on the 



piles of wharves. 



232. M. ater, Frauen. Eocks near high water-mark ; plentiful. 



233. Modiola australis, Gray. Not common. 



234. M. fluviatilis, Hutton. Brackish water near Lake Taka- 



puna. 



235. Lithodomus truncatus, Gray. Boring in rocks between 



tide-marks. Abundant. 

 336. Crenella impacta, Hermn. Under overhanging ledges near 

 low water-mark, spinning a nest for itself among Tunicata 

 and seaweeds. 



Order III.— MONOMYAEIA. 



Pinnidae. 



237. Pinna zealandica, Gray. Muddy bays near low water- 



mark ; not uncommon. 



Pectinidse. 



238. Pecten zealandica, Gray. Near low water-mark, under 



stones, or at the roots of seaweeds. 



239. P. laticostatus. Sand-banks, at and below low water-mark. 



Anomiidse. 



240. Placunanomia zealandica. Gray. Under stones near low 



water-mark, Eangitoto Eeef ; rare. 



Ostreidse. 



241. Ostrea glomerata, Sow. On rocks between tide-marks ; 



common. 



Class IV.— BEACHIOPODA. 



242. Terebratella rubicunda, Sol. Eangitoto Island ; under 



stones near low water-mark; not uncommon. 



