28 LAMELLIBEANCHLVTA. 



84. C. attenuata, sp. nov. Eather ventricose, mucli longer than 

 high ; posterior side produced and attenuated ; utnbones distant ; 

 hinge sub-oblique. Height, 3 ; length, 4"5. 



Localities. — Lake Wakatipu ; Paparoa, Upper "Wanganui ; Caver- 

 sham. 



PECTUNCULUS. 



85. P. Striatularis, Lamarh; Cat. Marine 3Ioll., p. 80. 

 Localities. — Wanganui (u). 



86. P. latiCOStatUS, Quoy ; Cat. liar ine Moll p . 80. 

 Localities. — Wanganui (tj) ; Shakespeare Cliff; Awatere ; Mota- 



nau (l) ; Lower Grorge of the Waipara ; Castle Point ; Puketapu ; 

 Paparoa ; Tainuitaipo ; Cape Kidnappers ; Broken Eiver (u) ; Kawau ; 

 Mount Caverhill ; Lyndon ; Oamaru ; Callighan's Creek ; Cliffs at 

 Nelson (Hochstetter) ; Caversham. 



87. P. globosns, sp. nov. Ventricose, sub-eqnilateral, as high 

 as long ; posterior end ronnded, rather broader than the anterior ; 

 umbones rather distant, hinge at right angles to the axis of the shell, 

 slightly curved, teeth oblique. Height, 4 ; length, 4. 



Localities. — Hick's Bay ; Kokohu ; Wairoa, Nelson ; Kanieri ; 

 Motanau (l) ; Broken Eiver (u) ; Callighan's Creek ; Kawau ; Oamaru. 



88. P. traversi, sp. nov. Sub-orbicular, rather compressed, 

 with about thirty-five radiating rounded ribs of equal breadth to the 

 intervening grooves, which are also rounded ; both crossed with con- 

 centric striae. Height, 2'65 ; length, 2'65. 



Localities. — Chatham Islands ; Weka Pass (m). 



89. P.(?) COrdatnSj^i^.^^ot;. vato-cordi£orm, ventricose, umhones 

 rather distant, inequilateral ; anterior end short, rounded ; posterior 

 end produced and obliquely truncated ; shell with broad smooth flat 

 radiating ribs, interspaces narrow ; hinge slightly curved with a row of 

 from fourteen to eighteen transverse teeth, ligament external ; variable 

 in shape. Height, 1'3 ; leugth, 1'25 ; thickness, 1*1. 



Localities. — Wairoa Eiver, Nelson. 



LIMOPSIS. 



Orbicular, convex, slightly oblique ; hinge with the teeth divided 

 into two equal, curved series of transverse plates. 



90. Ii, inSOlita, Soiverhy ; Tingonoccelia insolita, Sowerlif (in 

 Darivin's Geo. Ohs. on South America, p. 252) ; Limopsis insolita, Zittel, 

 Voy. Novara, PalcB.,p. 48. Elongato-ovate, thick, convex, sub-smooth, 

 very finely concentrically striated ; umbones small ; ligamental area 

 triangular, high, smooth ; ligament pit broad, rather deep ; cardinal 

 teeth semi-lunar, oblique, the median ones smaller. Height, 1"2 ; 

 length, 1-2. 



Localities. — Clifi's at Nelson (Hochstetter) ; Kanieri ; Waikari. 



91. L. Zealandica, sp. nov. Ovato-orbicular, obliquely trun-. 

 cated behind, thick, convex, concentrically irregularly ribbed, and 

 finely radiately striated ; umbones prominent ; hinge curved, the teeth 



