SuTEK. — 'New Species of Tertiary Mollusca. 295 



shoulder above it, straight, flat below ; the body-whorl flatly convex, 

 contracted below. Suture well impressed, submargiaed below by a rather 

 broad and but little raised convex band. Aperture vertical, pyriform, 

 channelled above, produced below into a short canal, its base notched. 

 Outer Up thin and sharp, with a sinus above. Columella vertical and almost 

 straight, turned to the left towards the canal. Inner lip thin and narrow ; 

 an elevated rib descending towards the right side of the canal, and inside 

 it is the distinct siphonal fascicle with laminate growth-periods. 



Height, 60 mm. ; diameter, 25 mm. (holotype). 



Bolotype in the Canterbury Museum, Chris tchurch. 



Locality. — Lower gorge of Waipara, lower horizon (R. Speight). Miocene. 



Remarks. — This is the first species of Clavatula recorded from New Zea- 

 land. It is very nearly allied to C. (Perrona) unisulcata Cossman, from the 

 Pliocene of Karikal, French India, and, less so, to C. (Perrona) semimarginata 

 Lamarck, from the Miocene of Bordeaux, France. 



Terebra orycta sp. nov. Plate XII, fig. 2. 



Shell fairly large, subulate, the whorls swollen below the suture, thence 

 slightly excavated, with faint indications of axial plications. Sculpture 

 consisting of 18 to 20 axial plications, and there seems to be no spiral orna- 

 mentation ; all the specimens are in such a bad state of preservation that it 

 is impossible to ascertain the sculpture with certainty. Spire high, subulate ; 

 angle about 20°. Protoconch lost in all specimens. Whorls about 10 to 12, 

 somewhat swollen below the suture, straight or slightly concave to the suture 

 below ; base contracted. Suture not much impressed. Aperture vertical, 

 subrhomboidal, with a short, open canal below, its base notched. Outer 

 lip thin, sharp, somewhat contracted at the middle. Columella vertical, 

 straight, bent to the left below towards the canal. Inner Up narrow, thin, 

 with a rib issuing underneath it and descending to the base of the canal, 

 leaving a lamellate siphonal fasciole between it and the margin of the canal. 



Height, 47 mm. ; diameter, 12 mm. (holotype, imperfect). 



Holotype and 5 paratypes in the Canterbury Museum, Chris tchurch. 



Locality. — Lower gorge of Waipara, lower horizon (R. Speight). Miocene. 



Remark. — -This species is no doubt nearly allied to the South Australian 

 T. angulata Tate, and also, though more distantly, to T. biplex Hutton. 



Pecten (Patinopecten) marshalli sp. nov. Plate XIII, figs. 1 and 2. 



Shell large, inequivalve, subinequilateral, slightly oblique, ears large, 

 the right valve with dichotomous scaly radial ribs, the left valve with distant, 

 broadly rounded radial ribs, slightly more inflated than the right valve. 

 Beaks small, approximate. Ears large, subequal, the anterior somewhat 

 larger, on the right valve with a byssa' notch and ctenolium. Anterior 

 end slightly shorter, roundly angled above the middle, dorsal margin concave, 

 descending, margin regularly arched below the angle. Posterior end nar- 

 rowly convex at the middle, broadly rounded towards the convex basal 

 margin, dorsal margin straight, descending. Sculpture : Right valve having 

 on the anterior ear 2 to 3 strong radial ribs and close, lamellar, sinuous, 

 concentric striae, the posterior ear with inconspicuous radial ribs, rendered 

 scaly by the irregular concentric striae ; disc with about 11 dichotomous, 

 narrow, rounded, scaly radial ribs, the division of the ribs beginning at the 

 umbo, occasionally some ribs are trichotomouS, and the width of the ribs 

 is very variable ; the interstices between the ribs are mostly of the same 



