Bacillarie;!', Fragilariacea^ Rhaplioneis. 699 



ponica Temp. et Bruii Diat. foss. du Japon p. 36, t. 4, f. 12. — 

 Valvis arcuatis, angustis, 120-160^9-12, apicibus costatis et sub- 

 tilissime striatis; punctis margaritaceis irregularibus, in superficie 

 levi dispersis, limbo curvae dorsualis punctato, punctis 10 iri 10 y.., 

 limbo veritrali levi ; frustulis e facie connectivali visis angustissi- 

 mis, rectilineis vel vix curvatis, sub apicibus lenissirae constrictis. 

 Hab. fossilis in calcaria ad « Yedo et Sendai» Japonise. — Var. 

 ieptostigma Cleve et Grove in Diatoiniste 1891, p. 57, t. 9, f, 7-8 : 

 valvis latere dorsuali arcuatis, ventrali raedio subtumidis, 150^:7-9, 

 apicibus capitulatis ; striis in latere dorsuali brevissimis 8 in 10 [j.., 

 punctis parura evideutibus, nullo ordine per totam valvse superfi- 

 ciem sparsis; frustulis in fascias arcte conjunctis; zona connecti- 

 vali series 1-2 striarum brevissimarum 20 in 10 u.. praebente. In 

 freto (( Macassar ». 



RHAPHONEIS Ehr. [1844] in Ber. Berl. Akad. 1844, p. 74 ex parte 

 (Etym. rhaphis acus), Rabenh. FI. Eur. Algar. I. p. 125, Grun. 

 in Wien. Verhandl. 1862, pag. 378, V. H. Syn. pag. 146 ex par- 

 te, De-Toni Osserv. tasson. Bacill. pag. 906, Boryphora Kuetz. 

 [1844] Bacill. p, 74 (frustula Rhaphoneidis stipitata). — Frustula 

 e facie connectivali visa angusta, linearia; valvse lanceolatae vel 

 ellipticse, striis transversis moniliformibus subradiantibus, pseudo- 

 rhaphe plus minus distincta instructse, apicibus saepius subtiliter 

 sparseque punctatae. 



Obs. Genus hoc species permultas vix ei pertinentes ample- 

 ctitur, ergo a monographis inquirendum. 



I. Species in aquis marinis vigentes. — Cfr. in sectione II Rhaph. superbam. 



1. Rhaphoneis amphiceros Ehr. in Ber. Berl. Akad. 1844, p. 87, Mi- 2Sii 

 krogeol. t. 18, f. 82, Rabenh. Fl. Eur. Algar. I, p. 126, V. H. Syn. 

 p. 147, t. 36, fig. 2:^-23, Cocconeis amphioeros Ehr. in Ber. Berl. 

 Akad. 1840, Dorpphora amphiceros Kuetz. Bacill. p. 74, t. 21, 11, 

 f. 1, t. 5, f. 10, Sp. p. 50, W. Sm. Br. Diat. I, p. 77, t. 24, f. 224, 

 Rhaphoneis gemmifera Ehr. et Rhaphoneis pretiosa Ehr. in 

 l)er. Berl. Akad. 1844, pag. 87 teste Rabenhorst. — Valvis late 

 lanceolatis, 35-70 p.. longis, apicibus rostratis vel subcapitatis ; 

 .striis plus minus arcuatis, 5-6 in 10 y.,, grosse granulatis, granu- 

 lis series longitudinales subrectas eflicientibus, apicibus valvse pun- 

 ctis irregularibus ornatis. 



Ilab. ad oras Galli;^e, Anglia^, Belgii, Hispania^, Lusitaniae, Ita- 

 liae; ad Confervaceas prope «Cuxhaven)) (Kuetzing); in Vir- 



45 



