810 PROCEEDINGS OF THE NATIONAL MUSEUM. 



NODULARIA JAPANENSIS var. JOKOHAMENSIS von Ihering. 



* Unio jaxianensis Kobelt Abh. Seuck. Nat. Ges., XI, 1879, p. 423, pi. xii, figs. 1, 2. ' 



* Unio yolcoli aniens is voN Ihering, Abb. Senck. Nafc. Ges., XVIII, 1893, p. 158. 



Japan. 



t NODULARIA HACONENSIS von Ihering. 



* Unio haconensis vox IiiEPaNir, Abh. Senck. Nat. Ges., XVIII, 1893, p. 161, fig. 3. 

 Japan. 



NODULARIA BRANDTII Kobelt. 



* Uvio hrandva Kobelt, Abh. Seuck. Nat. Ges., XI, 1879, p. 426, pi. xxiii, fig. 15.— 



* P.ETEL, Conch. Sam., Ill, 1890, p. 146.—^ von Ihering, Abh. Senck. Nat.Ges., 

 XVIII, 1893, p. 157. - 



Japan. 



NODULARIA BIVJ JE. Kobelt. 



" Unio liwce Kobelt, Abh. Seuck. Nat, Ges., XI, 1879, p. 425, pi. xxiii, figs. 2-4.— 

 *Paetel, Couch. Sam., Ill, 1890, p. 146.— '^ voN Ihering, Abh. Seuck. Nat. 

 Ges., XVII, 1893, p. 157. 



Japan. 



NODULARIA OMIENSIS von Heimburg. 



* Unio omiensis von Heimburg, Nach. Deuts. Mai. Ges., XVI, 1884, jj. 93; * Jahr- 



buch Mai. Ges., XIV, 1887, p. 2, pi. i, figs. 2, 3.— "P^tel, Conch. Sam., Ill, 

 1890, p. "61. 



Province of Omi, Japan. 



(Group of Nodular la reiniana.) 



Shell elliptical oval, very solid, truncated in front and somewhat 

 biangulate behind, slightly produced at the i^osterior base; beak sculp- 

 ture not known; pseudocardinals heavy, elongated, parallel with the 

 dorsal line. Animal unknown."' 



NODULARIA REINIANA Kobelt. 



* Unio reinianus Kobelt, Abh. Seuck. Nat. Ges., XI, 1879, p. 424, pi. xxiii, fig. 



1.— *V0N Ihering, Abh. Senck. Nat. Ges., XVIII, 1893, p. 157. 



Japan. 



(Group of Nodularia sagittaria.) 



Shell elongated, the hinder point above the middle of the shell, with 

 a sharp i)osterior ridge and a faint ridge above it; beaks rather low, 



'Kobelt figured this for Lea's species, and it seems to me to be an old, solid, slightly- 

 arcuate form, possibly worthy of a varietal name. 



"It is quite probable that this and the jDreceding species are only varieties of 

 N.japauensis. 



3 The beaks of the specimen figured are greatly eroded. I can not be certain as to 

 the relationship of this curious form, but it probably is a Nodularia. 



