NO. 1205. SYNOPSIS OF THE NAIADES-SIMPSOX. 819 



t NODULARIA FULVASTER Drouet and Chaper. 



"" Unio fulvastei- Drouet and Chaper, Mem. Soe. Zool. de Fr., Y, 1892, p. 154, pi. 

 VI, figs. 11-13.— *Deouet, Jl. de Couch., XLI, 1893, p. 45. 



Borneo. 



NODULARIA SEMIDECORATA L. Morlet. 



"Pwio semidecoraius L. Morlkt, Jl. de Couch., XXXVII, 1889, p. 192, pi. viir, 

 fig. 4. 



Eiver Srakeo, Siam. 



t NODULARIA RUSTICA Lea. 



*Umo rusUcus Lea, Pr. Ac. N. Sci. Phila., VIII, 1856, p. 93; *Obs., VI, 1857, p. 14, 

 pi. XXV, fig. 7.— ^-Jl. Ac. N. Sci. Phila., Ill, 1858, p. 294, pi. xxv, fig. 7.— *voN 

 Martens, Pr. Zool. Soc. Loud., 1860, p. 14.— *Morelet, Ser. Couch., IV, 1875, 

 p. 353, pi. XVII, fig. 7.— *P.ETEL, Couch. Sam., Ill, 1890, p. 166. 



* Margaron ( Unio) rusHciis Lea, Syu., 1870, p. 31. 



*" Unio paivamis Morelet, Jl. de Couch., XIII, 1865, p .227. 



* Unio camiojensis Sowerby, Conch. Icon., XVI, 1866, pi. xlii, fig. 231. — "P.etel, 



Couch. Sam., Ill, 1890, p. 147. 



Siam; Cambodia. 



t NODULARIA DAUTZENBERGI L. Morlet. 

 ^^ Unio dautzenhergi Morlet, Jl. de Conch., XXXVII, 1889, p. 190, pi. viii, fig. 5. 



Elver Srakeo, Siam. 



NODULARIA SOBOLUS Fischer. 



* Unio siamensis Morlet, Jl. de Conch., XXXVII, 1889, p. 194, pi. vii, fig. 2. 

 *" Unio sohohis FisCH'EK, Bull. Soc. d' Autun., 1891, p. 227.i 



Siam. 



NODULARIA VERBECKI Bottger. 



" Unio verbecM Bottger, Zool. Erg. Nied. Ost. Ind., IV, 1897, p. 89, pi. v, figs. 1, 

 2, 4, 5.— *P.etel, Conch. Sam., Ill, 1890, p. 17L 



Sumatra. 



t NODULARIA ORIENTALIS Lea.2 



* Unio orientalis Lea, Pr. Am. Phil. Soc, 1, 1840, p. 285 ; * Tr. Am. Phil. Soc, VIII, 



1842, p. 221, pi. XVIII, fig. 38; * Obs., Ill, 1842, p. 59, pi. xviii, fig. 38.— 

 ^H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 491.— *Chenu, 111. Conch, 

 1858, pi. xxxii, figs. 6, 6a, 6&.— * Kuster, Conch. Cab. Unio, 1861, p. 241, pi. 

 Lxxx, fig. 16.—" vox Martens, Mai. BL, XIV, 1866, p. 15.—* Sowerby, Conch. 

 Icon., XVI, pi. xci, fig. 491.—* P.etel, Conch. Sam., Ill, 1890, p. 162. 



' Changed from siamensis to solohts because the former was preoccupied by Lea. 

 Probably an old, smooth rusticus. 



-I hardly know where to place this, as the only shell I have seen (the type) is 

 evidently young, and has the beaks eroded until I can not make out the sculpture. 

 It seems most likely to be an elongated, somewhat compressed member of the con- 

 tradens group. 



