656 PROCEEDINGS OF THE X.ITHLVAL MTSETM. VOL.XXII 



fSOLENAIA FALCATA Higgins. 



* Mycelopus falcatua HIGGINS, Proc. Zool. Soc. Loml., 1868, p. 179, pi. xiv, fig. 6.' 

 SOWERBY, Conch. Icon., XVI, 1868, pi. iv, fig. 9. *CLKSSIN, Couch. Cab. Ano., 

 1875, p. 204, pi. LXVII, figs. 1, 2.* FISCHER, Jl. de Conch.. XXXVIII, 1890, p. 

 8. *P.ETEL, Conch. Sam., Ill, 1890, p. 186. 



* Platiris (Mycetopus) falcatus LKA, Syn., 1870, p. 90. 



Southeastern Asia. ? 



(Group of Solenaia soleniformis.) 



Shell oiily slightly narrowed in front, the narrow area not distinctly 

 marked off from the rest of the shell. 



fSOLENAIA SOLENIFORMIS Benson. 



*Anodonta soleniformis BENSON, Jl. As. Soc. Bengal, V, 1836, p. 749. 



*Spatha soleniformis HANLEY and THEOBALD, Conch. Ind., 1876, p. 5, pi. ix, fig. 1. 



*Mycetopm soleniformis FISCHER, Jl. de Conch., XXXVIII, 1890, p. 94. 



' Margaron ( Unio) bensoni LEA, Syn., 1870, p. 57. 



*Mycetopun bensonianus P.ETKL, Couch. Sam., Ill, 1890, p. 186. 



Assam, India. 



t SOLENAIA OLEIVORA Heude. 



*Mycetopus oleivorus HEUDK, Conch. Flnv. Nank., Ill, 1877, pi. xxn, fig. 46; 



xxin, fig. 48.* FISCHER, Jl. de Conch, XXXVIII; 1890, p. 11.* P.ETEL, 



Conch. Sam., Ill, 1890, p. 187. 

 * }Mycetopus recognitus HEUDE, Conch. Fluv. Nank., Ill, 1877, pi. xxn, fig. 47. 



* FISCHER, Jl. de Conch., XXXVIII, 1890, p. 1L * PJETEL, Conch. Sam., Ill, 

 1890, p. 187. 



*Mycetopti8 cwruleus HEUDE, Conch. Fluv. Nank., IX, 1885, pi. i.xxi, fig. 135. 



* FISCHER, Jl. de Conch., XXXVIII, 1890, p. 11.* P^TEL, Conch. Sam., Ill, 

 1890, p. 186. 



*Mycetopu,8 armattis HEUDE, Conch. Fluv. Nank., IX, 1885, pi. i>xx, fig. 133. 2 

 *Mycetopus arcnatus FISCHER, Jl. de Conch., XXXVIII, 1890, p. 11. P/ETEL, 



Conch. Sam., Ill, 1890, p. 186. 

 "Mycetopua riridis HEUDE, Conch. Fluv. Nank., IX, 1885, pi. LXXI, fig. 136. 



* FISCHER, Jl.de Conch., XXXVIII, 1890, p. 11. * P.KTEL, Conch. Sam., Ill, 

 1890, p. 187. 



*Mycetopus succineus HEUDE, Conch. Fluv. Nank., IX, 1885, pi. LXX, fig. 184. 



* FISCHER, Jl. de Conch., XXXVIII, 1890, p. 11.* P/ETEL, Conch. Sam., Ill, 

 1890, p. 187. 



China. 



1 Said to come from forest streams near Chyavetas, Upper Amazon, and to have 

 been discovered by Mr. Bartlett. I can not believe that it is a South American 

 species at all, but rather that it is from southeastern Asia, as it is an almost exact 

 miniature copy of S. emarginatus Lea from that region, having its texture, and not 

 the soft, shining appearance of the Mycetopodas. It was described with a miscella- 

 neous lot of shells from various localities, and that given for this is, I think, 

 erroneous. 



3 M. arcuatus Heude in explanation of plate. 



