Hutton. — Revision of the Tertiary Brachiopoda of N.Z. 475 



Terebratula gravida. 



T. tayloriana, Colenso, Tasmanian Journ. of Science, 1844 

 (not of Lea, 1841). Waldlieimia gravida, Suess, Reise der 

 " Novara," Palae., p. 56, taf. ix., f. 5. 



" Shell ovate, ventricose, very solid, smooth, concentrically 

 and obsoletely striated, lamellar ; margin apparently entire ; 

 summit of larger valve much produced, arcuated, subdeflexed, 

 thick, very truncate ; perforation large ; horn or light mouse- 

 colour. Length, 2-J- in. ; breadth, 1^ in." (Colenso.) 



The shell is much inflated, the valves nearly equally con- 

 vex. Beak short, thick, not keeled ; the foramen very large ; 

 deltidium small, hidden. Commissure even, or slightly 

 sinuated. Interior unknown. 



Measurements of the specimens in the Museum : Lengthy 

 57-84 mm. ; width, 38-70 mm. ; thickness, 38-53 mm. 



Localities. — Ngapara, near Oamaru ; Broken River. 



Magellania lenticularis. 



T. lenticularis, Deshayes, Mag. Zool., 1841, pi. xii. Wald- 

 heimia lenticularis, i\.dams, Gen. of Recent Moll., ii., 575. 

 Orbicular, inflated, the commissure nearly straight. Beak 



small, incurved, laterally keeled ; foramen small or moderate ; 



deltidium conspicuous, the internal margins of the two delti- 



dial plates forming a groove. 



Magellania lenticularis, var. ovalis. Plate XLV., fig. 2. 



Waldlieimia ovalis, Hutton, Trans. N.Z. Inst., vol. xviii., 

 p. 335. 



More elongatsd than the typical form. 



Length, 44-53 mm.; width, 35 - 40 mm. ; thickness, 

 21-28 mm. 



Locality. — Wanganui (type). 



Magellania novara. Plate XLV., fig. 3. 



W'ald. lenticularis, Suess, Reise der "Novara," Palye., p. 56,. 



taf. x., f. 3-4 (not of Deshayes). M. novara. H. v. Jhering, 



Ann. del Mus. Nac. de Buenos Aires, ix., p. 337 (1903). 



Orbicular, rather depressed, valves nearly equally convex,, 

 smooth, the greatest breadth rather behind the middle ; com- 

 missure nearly straight. Beak moderate, laterally keeled ;. 

 foramen small ; deltidium conspicuous, the inner margins of 

 the deltidial plates forming a groove. 



Length, 49 mm. ; width, 44 mm.; thickness, 25 mm. In- 

 terior unknown. 



Localities. — Waipara; Weka Pass district. 

 Distinguished from the last species by being less inflated. 



