656 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxii. 



fSOLENAIA FALCATA Higgins. 



* Mycetopus falcatus Higgins, Proc. Zool. Soc. Lond., 1868, p. 179, pi. xiv, fig. 6.' — 

 SowERBY, Conch. Icon., XVI, 1868, pi. iv, fig. 9.— *Clessin, Couch. Cab. Ann., 

 1875, p. 204, pi. Lxvii, figs. 1, 2.—* Fischer, Jl. de Conch., XXXVIII, 1890, p. 

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



Tlatiris (Mycetopus) falcatus Lea, Syn., 1870, p. 90. 



Southeastern Asia. 1 



(Group of Solenaia soleniformis.) 



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

 marked off from the rest of the shell. 



t SOLENAIA SOLENIFORMIS Benson. 



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



*Spailui soleniformis Hanley and Theobald, Conch. Ind., 1876, p. 5, pi. ix, fig. 1. 



* Mycetopus soleniformis Fischer, Jl. de Conch., XXXVIII, 1890, p. 94. 

 'Margaron ( Unto) hensoni Lea, Syn., 1870, p. 57. 



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



Assam, India. 



t SOLENAIA OLEIVORA Heude. 



* Mycetopus oleivorus Heude, Conch. Fluv. Nank., Ill, 1877, pi. xxii, fig. 46; 



xxiii, fig. 48.— * Fischer, Jl. de Conch, XXXVIII, 1890, p. 11.— *P^tel, 

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



* \Mycetopus recognitus Heude, Conch. Fluv. Nank., Ill, 1877, pi. xxii, fig. 47.— 



* Fischer, Jl. de Conch., XXXVIII, 1890, p. 11.—* P^etel, Conch. Sam., Ill, 

 1890, p. 187. 



""Mycetopus cwruleus H^vde, Conch. Fluv. Nank., IX, 1885, pi. lxxi, fig. 135.— 

 ^Fischer, Jl.de Conch., XXXVIII, 1890, p. 11.— ^P^etel, Conch. Sam., Ill, 

 1890, p. 186. 



*Mycetopus armatus Heude, Conch. Fluv. Nank., IX, 1885, pi. i.xx, fig. 133.^ 



* Mycetopus arcuatus Fischer, Jl. de Conch., XXXVIII, 1890, p. 11.— P^tel, 



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

 "Mycetopus viridis Heude, Conch. Fluv. Nank., IX, 1885, pi. lxxi, fig. 136. — 



* Fischer, Jl.de Conch., XXXVIII, 1890, p. 11.— *P.etel, Conch. Sam,, III, 

 1890, p. 187. 



*Mycetopus succiveus Heude, Conch. Fluv. Nank., IX, 1885, pi. lxx, fig. 184. — 



* Fischer, Jl. de Conch., XXXVIII, 1890, p. 11.—* P^tel, 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. 



2 M. arcuatus Heude in explanation of plate. 



