NO. 1205. SYJS'OPSIS OF THE XAIADES—SrMPSON. 935 



203, pi. Lxvi, fig. 6.—* FisCHEE, Jl. de Conch., XXXVIII, 1890, p. 8.—^ P.e- 

 TEL, Concli. Sam., Ill, 1890, p. 187. 



Brazil; northward to Nicaragua. 



MYCETOPODA HUPEANA Clessin. 



* Mycetoims pygnmus Hupk, Moll. Nouv., Ill, 1857, p. 93, pi. xix, fig. 2. 



" Mycetopus Impeanus Cles.sin, Concli. Cab. Ano., 1875, p. 206, pi. lxvi, fig. 15. — 

 '^FiscHEK, Jl. de Conch., XXXVIII, 1890, p. 8. 



Brazil. 



(Group of Mycetopoda ventricosa.) 



Shell rather short and high, inequilateral subrhomboid with a strong 

 angle at the anterior upper point, cut away below in front, slightly 

 sinuous on the base, narrower behind, strongly truncate on posterior 

 slope; posterior ridge wide and lightly curved, hinge line curved. 



Animal unknown. 



t MYCETOPODA VENTRICOSA d'Orbigny. 



* Mycetopoda ventricosa J)'ORTiiLG'SY,yoy. Am. Mer., 1843, p. 602, pi. LXXil, figs. 1-3. — 



*H. and A. Adams, Gen. Eec. Moll., II, 1857, p. 505. — "Sowerby, Conch. 

 Icon., XVI, 1868, pi. iir, fig. 8.— ^Clessin, Conch. Cab! Ano., 1875, p. 202, pi. 

 LXix, figs. 2, 3.—* Fischer, Jl. de Couch., XXXVIII, 1890, p. 8.— *P.etel, 

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



* Platiris (Mycetopits) ventricosus Lea, Syu., 1852, j). 56; 1870, p. 90. 



Bolivia. 



(Group of Mycetopoda soleniformis.) 



Shell large, rounded in front, but somewhat truncated on the lower 

 anterior j)art; base line evenly incurved; jjosterior ridge well devel- 

 oped, curved, truncate on posterior slope; beaks central. 



Animal that of the genus. 



t MYCETOPODA SOLENIFORMIS d'Orbigny. 



* Mycetopoda soleniformis d'Orbigny, Guar. Mag., 1835, p. 41. — ^Ciienu, IlL 



Couch., 1858, pi. I, figs. 1, la, 1&. 



* Platiris {Mycetopus) soleniformis Lea, Sj'n., 1838, p. 34; 1852, p. 56; 1870, p. 90. 



* Mycetopus soleniformis Reeve, Conch. Syst., 1, 1841, p. 125, pi. xciv.^* Hanley 



Teat. Moll., 1842, p. 224; *Biv. Shells, 1843, p. 224.— « d'Orbigny, Voy. Am! 

 Mer., 1843, p. 601, pi. lxvi.'— * Catlow and Eeeve, Conch. Norn., 1845, p. 

 69.— *II. and A.Adams, Gen. Eec. Moll., II, 1857, p. 505; III pi. cxviii,. 

 figs. 2a., 25.—^ Chenu, Man., 1859, II, p. 147, tig. 725.— * Reeve, Elements of 

 Conch., 11,1860, pi. xxxii, fig. 181a, &.— *Sowerby, Conch. Icon., XVI,. 

 1868, pi. I, fig. 1.—* Clessin, Conch. Cab. Ano., 1875, p. 201, pi. lxviii, fig. 1.— 

 * Fischer, Jl. de Conch., XXXVIII, 1890, p. 7.— *P^tel, Conch. Sam., Ill,, 

 1890, p. 187. 



* Mycetopus solenoides Sowerby, CoDch. Man., 1839, fig. 151. 

 ^ Margaron (Anodonta) soleniformis Lea, Syn., 1852, p. 53. 



* Platiris (Mycetopus) soleniformis Lea, Syn., 1870, p. 90. 



Bolivia; Peru. 



1 1843 was the date of issue of the last part of the voyage. The description of 

 Mycetopus in this work appeared earlier. 



