LAMELLIBRANCHIATA. 



29 



in the middle smaller ; area trianj2;ular, transversely striated ; margin 

 flattened, entire ; an elevated ridge from the interior of the umbo 

 to the inside of the anterior adductor impression. Height, "8 ; 

 length, '85. 



Localities. — Awamoa. 



Family — Nuculidje. 

 SOLENELLA. 



92. S. CUmingi, Adams ; Cat. Marine Moll., p. 81. 

 Localities. — Cape Kidnappers ; Conway Eiver. 



93. S. aUStraliS, Zittel, Yoy. Novara, Pake., p. 47., pi. xiv.,/ 2; 

 not Leda australis, Qtioy. Transversely oblong, rounded in front ; 

 produced and waved behind ; posterior dorsal margin straight ; pos- 

 terior end truncated, slightly emarginate ; ventral margin convex ; 

 valves with close rounded concentric striae. Height, "8 ; length, 1*4. 



Localities. — Conway E-iver ; Hampden j White Cliffs, Taranaki ; 

 Cliffs at Nelson (Hochstetter). 



Family — Pectexid^. 

 PECTEN. 



94. P. zealandise, Gray ; Cat. Marine Moll, p. 81. 

 Localities. — Motanau (u) ; Wanganui (tj) ; Shakespeare Cliff; 



Kaipara. 



95. P. radiatUS, Hutton, Cat. Marine Moll., p. 82. 

 Localities. — Wanganui (u) ; Shakespeare Cliff ; Napier. 



96. P. gemmulatUS, Beeve; Cat. Marine Moll., p. 81. 

 Localities. — Shakespeare Cliff. 



97. P. "wiUiamSOni, Zittel, Toy. Novara, Falce., p. 50, pi. ix., 

 f. 11. Ovate, higher than long, equivalve, slightly convex, regularly 

 radiately ribbed ; ribs twenty-five to thirty, slightly scaly, the median 

 ones often smooth ; ears unequal, with scaly ribs. Height, 1*6 ; length, 

 1-4. 



Localities. — Aotea, Auckland (Hochstetter) ; Kaglan ; Kaipuki 

 Cliffs ; Tata Island ; Black-birch Creek ; coast between Kaglan and 

 Port Waikato. 



98. P. chathameiisis, sp. nov. Ovato-trigonal, higher than 

 long, equivalve, somewhat convex, regularly radiately ribbed ; ribs 

 about twenty, scaly, rounded, of equal breadth with the grooves, which 

 are smooth; ears large, unequal, ribbed. Height, 13; length, 1*1. 



Localities. — Chatham Islands ; Castle Point, East Coast, Welling- 

 ton; Broken Eiver (l). 



99. P. SCandula, sp. nov. Ovate, higher than long, compressed ; 

 with about thirty fine narrow radiating ribs ; interspaces much broader, 

 concentrically striated ; ears very unequal, w^ith scaly stria'. Height, 

 •85 ; length, 75. 



Localities. — Kanieri. 



