Hutton. — Revision of the Tertiary Brachiopoda of N.Z. 477 



The following are the dimensions of two New Zealand 

 specimens. Length, 76-81 nun.; width, 53-63 mm.; thick- 

 ness, 46-50 mm. 



Locality. — Weka Pass district. 



Distinguished by its strongly incurved beak with minute 

 foramen, and deltidium of a single piece. The beak is slightly 

 keeled. Terebratella, venter, Jhering, from the Miocene beds 

 of Santa Cruz in Patagonia, is an allied form. 



Magellania triangularis. 



Wald. triangularis, Hutton, Cat. Tertiary Moll, of N.Z., p. 36. 



T. angulare, Hector, Outlines of Geol. of N.Z., p. 54, 



fig. 11. 



Shell orbicular, smooth, inequi valve. Ventral valve with 

 the sides more or less flattened. Anterior margin of the com- 

 missure witb a broad downward (ventral) sinuosity. Beak 

 much incurved, the former small. Deltidium small, almost 

 hidden, of one piece : the beak slightly keeled. 



Length, 51-53 mm. ; width, 48 mm. ; thickness, 29- 

 32 mm. 



Locality. — Waitaki Valley. 



Distinguished from the last species by the flattened sides 

 of the ventral valve and being less inflated. It differs from 

 M. corioensis. McCoy, in the greater relative breadth and in 

 the flatter dorsal valve. 



Terebratella sanguinea. 

 T. sanguinea, Leach, Zool. Misc. p. 76. T. cruenta, Dillwyn ; 

 Eeeve, Conch. Icon., fig. 20. 



Ventricose, ornamented with radiating dichotoinous ribs ; 

 about 25-30 in the centre of each valve in the adult. Margins 

 crenulated ; dorsal valve with a central longitudinal depres- 

 sion. Beak somewhat produced, laterally keeled. Foramen 

 large, complete ; deltidium large. 



Length, 38 mm. ; width, 38 mm. ; thickness, 25 mm. 



Localities. — Wanganui ; Kakanui ('?), small specimen. 



Terebratella novse-zealandiae. 



T. dorsata, Suess, Eeise der " Novara," Palae., p. 57, taf. xiv., 

 fig. 5 (not of Gmelin). T. nova-zelandice, H. v. Jhering, 

 Ann. Mus. Nac. de Buenos Aires, ix., p. 328, 1903. 



This species is not represented in the Museum collection. 



Terebratella radiata. Plate XLVL, fig. 2. 

 T. radiata, Hutton, Trans. N.Z. Inst, xix., p. 406 (1887). 



Broadly ovate, with a deep ventral ridge and dorsal sinus. 

 Surface with strong radiating ribs, about 18 on the ventral 



