818 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XXII. 



' Mttrgaron (Unio) jaranns LEA, Syn., 1852, p. 30. 



"Unio erilis DUNKER, Zeits. fiir Mai.. III., 1846, p. 109. Moussox, L. uml S. W. 



Moll. Java, 1849, p. 92, pi. xvi, fig. 3. 

 *Margaron (Unio) cxills LEA, Syn., 1852, p. 29. 

 *Unio mutatns MOUSSON, L. und S. W. Moll. Java, 1849, p. 92, pi. xvi, figs. 1, 2; 



Zeits. fiir Mai., VII, 1851, p. 46; *H. and A. ADAMS, Gen. Kec. Moll., II, 1857, p. 



494. *P,*;TEL, Conch. Sam., Ill, 18PO, p. 160. 

 *Margaron ( Unio) mutalus LEA, Syn., 1852, p. 29. 

 *Tnio mederianus KUSTER, ' Conch. Cub. Unio, 1861, p. 242, pi. LXXX, fig. 7. 



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



Java. 



t NODULARIA DIMOTA Lea. 



* Unio sumatreensis, LEA, Pr. Ac. N. Sci. Phila., Ill, 1859, p. 153; * Jl. Ac. N. Sci. 



Phila., IV, 1860, p. 239, pi. xxxiv, fig. 118; *Obs., VII, 1860, p. 57. pi. xxxiv, 

 fig, 118.* P.*TEL, Conch. Sam., Ill, 1890, p. 169. 



* Maryaron ( Unio) dimoius, LEA, Syn., 1870, p. 30. - * P.ETEL, Conch. Sam., Ill, 



1890, p. 150. 15 



Sumatra. 



NODULARIA FISCHERIANIA L. Morlet. 



* Unio fischerianus, L. MOKLET, Jl. de Conch., XXXI, 1883, p. 109, pi. iv, fig. 6. 



* PJETKL, Conch. Sam., III. 18?0, p. 152. 



Cambodia. 



t NODULARIA ANODONT^FORMIS Tapperone-Canefri. 



* Unio (Microdontia) anodonta-formis TAPPEROXE-CAXEFRI, Ann. Mus. Genov., 



XIX, 1883, p. 295, pi. xi, figs. 3-5. 



* I'nio anodonla'formis P.ETKL, Conch. Sam., Ill, 1890, p. 144. 



New Guinea. 



t NODULARIA SACELLUS Drouet and Chaper. 



* Unio sacellus DROUET and CHAPER, Mem. Soc. Zool. Fr., V, 1892, p. 148, pi. v, 



figs. 4-6; Jl. de Conch., XLI, 1893, p. 43. 



Borneo. 



t NODULARIA LUGENS Drouet and Chaper. 4 



* Unio l>i</ens DROUET and CHAPER, Mem. Soc. Zool. Fr., V, 1892, p. 147, pi. v, 



figs. 1-3. * DROUET, Jl. de Couch., XLI, 1893, p. 44. 



Borneo. 



1 Kuster credits this to Mousson, Couch, of Java, p. 92. I know of no such work, 

 and the name is not found in Mousson's L. und Suss. W. Moll, vou Java. 



2 Changed to this name by Lea because sumatrtensis was preoccupied for a I'nio by 

 Dunker. 



3 This species varies much in sculpture, and shows the connection between the 

 nearly smooth contradens and the strongly corrugated forms like ruaiicus and 

 dautzenbergi. It is really very*close to contradens. 



4 1 am doubtful whether these two are more than varieties of the same thing. 

 The N. lugens is darker colored and seems to lack a little tubercle on the hiuge, 

 which is sometimes present hi saceUus. 



