892 PROCEEDINGS OF THE NATIONAL MUSEUM. 



fDIPLODON CULTELLIFORMIS Conrad. 1 



*1Unio depressa LAMARCK, An. sans. Vert., VII, 1819, p. 79. *?DELESSERT, 



Rec. Coq. Lam., 1841, pi. xn, tig. 5. *CHExr, 111. Conch., 1858, pi. xn, 



figs. 4, 4a. 

 *Unio depressHS HANLKY, Test. Moll., 1842, p. 200; * Biv. Shells, 1843, p. 200. 



*CATLOW and REEVE, Conch. Nom., 1845, p. 58. * CONRAD, Jl. Ac. N. Sci. 



Phila., 1854, p. 295, pi. xxxvi, fig. 2. * H. and A. ADAMS, Gen. Rec. Moll., 



II, 1857, p. 493. * P^BTEL, Conch. Sam., Ill, 1890, p. 150. 

 *T'nio cultclliformis CONRAD, Pr. Ac. N. Sci. Phila., V, 1850, p. 10. * H. and A. 



ADAMS, Gen. Rec. Moll., II, 1857, p. 493. * P.ETEL, Conch. Sam., Ill, 1890, 



p. 149. 



*Margaron ( Unio) cultelliformis LEA, Syn., 1852, p. 32; 1870, p. 52. 

 *t Unio paramatensis LEA, Pr. Ac. N. Sci. Phila., VI, 1862, p. 176; * Jl. Ac. N. Sci. 



Phila., VI, 1866, p. 60, pi. xx, fig. 59; *Obs., XI, 1867, p. 64, pi. xx, fig. 59. 

 *Margaron ( Unio) paramattensis LEA, Syn., 1870, p. 35. 



Australia. 



tDIPLODON LUTULENTUS Gould. 



*Unio lutulentus GOULD, Pr. Bost. Soc. N. Hist., Ill, 1850, p. 295; *U.S. Expl. 



Exp., XII, 1852, p. 428, figs. 542, 542a, 542ft, 542c. * H. and A. ADAMS, Gen. Rec. 



Moll., II, 1857, p. 493. * GOULD, Otia Couch., 1862, p. 88. * REEVE, Conch. 



Icon., XVI, 1865, pi. xxv, fig. 122. * HUTTON, N. Z. Moll., 1880, p. 161. 



*P.ETEL, Couch. Sam., Ill, 1890, p. 158. 

 *Margaron ( Unio) lutulentus LEA, Syn., 1852, p. 32; 1870, p. 52. 



New Zealand. 



fDIPLODON WILSONII Lea. 



* Unio wilsonii LEA, Pr. Ac. N. Sci. Phila., 1859, p. 153; * Jl. Ac. N. Sci. Phila., IV, 



1860, p. 257, pi. XL, tig. 137; *Obs., VII, p. 74, pi. XL, fig. 137. * SOWERBY, 

 Conch. Icon., XVI, 1868, pi. LXXXVIII, fig. 474. * P.ETEL, Conch. Sam., Ill, 

 1890, p. 172. 



*Margarot> ( Unio) wilsonii LKA, Syn., 1870, p. 47. 



* \Unio (Alasmodon) stuarti ADAMS and ANGAS, Pr. Zool. Soc. Lond., 1863, p. 417. 2 



* Unio stuarti SOWERBY, Conch. Icon., XVI, 1866, pi. LIV, fig. 279. 



*Anodon stitarti SOWERBY, Conch. Icon., XVII, 1867, pi. xxxiv, figs. 136, 136a, 

 1366. 



* Naryaron ( Unio) stuarti LEA, Syn., 1870, p. 52. 



* Margariiana stuarti P^TEL, Conch. Sam., Ill, 1890, p. 174. 



* Anodonta stnarti PYETEL, Conch. Sam., Ill, 1890, p. 185. 



Australia. 



tDIPLODON EVANSI Adams and Angas. 



* Unio (Alasmodon) evansi ADAMS and ANGAS, Pr. Zool. Soc. Lond., 1864, p. 39. 



* Unio ei-ansi SOWERBY, Conch. Icon., XVI, 1867, pi. LVI, fig. 285.* P^TEL, Conch. ' 



Sam., Ill, 1890, p. 152. 



'I can not identify Lamarck's Unio depresses with any certainty from his very 

 meager description. Lea believed it to equal the form I have considered as anstraHs, 

 but Lamarck's description seems to apply to a more elongated species. Delessert's 

 figure in 1841 probably equals Lea's par ama It en sin. As the name deprcssns was used 

 for a Unio in 1801 by Donovan I am obliged to use another for this. 



2 A specimen of this iu the Lea collection from the Stuart expedition is identical 

 with Lea's species. 



