BY C. HEDLEY AND H. SUTER. 663 



176 U. HOCHSTETTERi, Dunker, 1862. 



R e f . — Mai. Blat. viii. p. 153; Conch. Icon. xvi. Unio, 

 pi. Lxxxvi. sp. 463 ; Man. N.Z. Moll. p. 161. 



H a b. — Noi'th Island; River Waikato (Hochstetter), Lakes 

 Taupo and Rotorua. 



177 U, LUTULENTUS, Gould, 1851. 



Ref.— Proc Boston Soc. Nat. Hist. iii. p. 295; U.S. Expl. 

 Exped. xii. p. 428, f. 542, a, b, c; Conch. Icon. xvi. Unio, pi. 

 XXV. f. 122, pi. Lxxiv. f. 386; Man. N.Z. Moll. p. 161, &c. 



H a b. — North and South Islands. 



178 U. WAIKARENSE, Colenso, 1845. 



R e f. — Tasmanian Journ. Nat. Sci. ii. pt. 9, April, 1845, p. 250 

 footnote ; N.Z. Journ. Sci. i. p. 170 ; Trans. N.Z. Inst. xiv. 

 p. 169. 



H a b. — North Island ; Lake Waikare (Colenso). 



179 U. DEPAUPERATUS, Hutton, 1883. 



Ref.— N.Z. Journ. Sci. i. p. 478 ; Trans. N.Z. Inst. xvi. p. 216. 

 H a b. — North Island ; Lake Takapuna. 



180 U. RUGATUS, Hutton, 1883. 



Ref.— N. Z. Journ. Sci. i. p. 478; Trans. N.Z. Inst. xvi. 

 p. 216. 



H a b. — North Island; Kopuaranga River. South Island; Lake 

 Pearson (Enys). 



181 U. MUTABiLis, Lea, 1860. 



Syn. — ? depressus, Lamarck, 1818. 



Ref. — Proc. Acad. Nat. Sci. Philad. iii. p. 152; Obs. Genus 

 Unio, vii. p. 66, pi. xxxviii. f. 127 (3 figures) ; Conch. Icon. xvi. 

 Unio, pi. XXIV. f. 112; Linn. Soc. Journ. Zool. xvi. p. 308, &c. 



H a b. — New Zealand (fide H. Cuming). 



Note — Lea states that he founded this species upon four 

 specimens : one from New Zealand, contributed by Cuming, upon 

 45 



