Hutron—The Pliocene Mollusca of New Zealand. 83 
Genus CHA MOSTRd#A., 
Cuamostr@ma ALBipa, Lamarck ; Woodward, Man. Moll. pl. xx. fig. 14. 
Locality.—W anganui. 
Genus LUCINA. 
Lucina ornata, Reeve, Conch. Icon. fig. 48. 
Locality.—Wanganui, Petane, Matapiro, Patea. 
Genus LORIPES 
Lorirges concinna, Hutton, Trans. N.Z. Inst. Vol. XVII. p. 323. 
(Plate 1x. fig. 90.) 
Shell small, sub-orbicular, the wnbos turned forward, truneated behind, 
compressed, regularly very finely concentrically grooved. Anterior dorsal 
margin hollowed under the umbo, then convex ; posterior dorsal margin slightly 
convex, descending suddenly near the posterior end; anterior end sometimes 
slightly undulated; ventral margin rounded. Lunule lanceolate. Anterior 
adductor impression elongated. Teeth—right valve, one cardinal, the posterior 
lateral obsolete ; left valve with two diverging cardinals, the laterals obsolete. 
Length 8mm. ; height 7mm. 
Locahty.— Wanganui, Petane. 
Genus MYSIA. 
Mysia NneozeLanica, Gray in Dieff. N.Z. I. p. 256; Voy. Erebus and Terror, Moll. 
pl. 11. fig. 8. 
Locality.—W anganui, Petane, Matapiro. 
Mysia ampia, Hutton, Trans. N.Z. Inst. Vol. XVII. p. 323. 
(Plate 1x. fig. 91.) 
Shell sub-orbicular, thick, concentrically striated ; posterior dorsal margin 
slightly concave, the anterior slightly arched. Interior rough, slightly radiately 
striated, the adductor impressions and pallial line well marked. Hinge 
