466 Baeillariese, Cocconeidacese, Orthoneis. 



ad oras Hispaniae (Truan y Luard) ; ad algas in oris Brasilia? et 

 insulfe «Tahiti», Capitis Bonse Spei, ins. nicobaricarum et Novas 

 Hollandia? (teste Grunow). — Grunow (Alg. Novara p. 15) dubiur.i 

 emittit an h*c species valvas omnino conformes possideat. Vix 

 pertinere videtur (ut valva inferior) Masiogloia cribrosa Grun. 

 1. c. t. 10 f. c. Cocconeis fimbriata genuina in maribus tropica- 

 libus, socia, Mastogloid cribrosd, obvenit, in mari mediterraneo 

 vero socia Orthoneide splendidd Greg. 



2. Orthoneis binotata Grun. Alg. Novara p. 15, Cocconeis binotata L9oj 

 Grun. in Wien. Verhand. 1863, p. 145, t. XIII, f. 13 (iocl. var. 

 stauroniformis Grun.), Rabenh. Fl. Eur. Algar. I, p. 103 C. Scu- 

 teltum var. y. Roper in Micr. Journ. VI, t. 3, f. 9. — Valvis 

 ovatis, 20-43 «12-25, utroque latere macula semicirculari margi- 

 nali notatis, punctis in lineas decussatas et transversales subra- 

 diantes ordinatis, 14-17 in 10 u.., nodulo centrali subinde in fa.^ciam 

 transversalem dilatato. 



Hab. \n maribus Europam alluentibus; etiam in mari Rubro 

 (GRUNOw);ad algas ad oras insulse Maderae, Capitis Bonse Spei, 

 insularum nicobaricarrum, «Tahiti» et Novao Hollandire (Grunow, 

 Exped, Novara). — Ut videtur, valva inferior nodulum centralem 

 stauroneiformi-ampliatum, valva superior nodulum rotundatum vel 

 saspe fere inconspicuum praebet. — Var. atlantica Grun. Alg. No- 

 vara p. 15, t. 1, f. II a-c. : valvis ovatis vel sublanceolato-ovatis, 

 striis punctatis tenuioribus, maculis marginalibus elongatis. Ad 

 S a r g a s s u m b acc i f e r u m in Oceano atlantioo (Exped. Novara). 



3. Orthoneis cribrosa Grun. Alg. Novara p. 16, Rab. Alg. n. 1403, i ''"■' 

 Masiogloia cribrosa Grun. in Wien. Verhandl. 1860, pag. 577, 



t. 7, f. 10 c [non a-b nec d], Rabenh. Alg. Eur. n. 1403 (socia 

 Orihoneide fimbriaia!), Cocconeis coronata Bright.? (Vide Or- 

 thon.? coronaiam). — Habitus fere Or/honeidis fimbriattv, valvis 

 late ovalibus, nodulo centrali parvo, oblongo, punctis majoribus in 

 lineas transversales radiantes ordinatis, 10-12 in 10 a., costulis 

 abbreviatis, distantibus, 3-4 in 10 u., ob puncta eas tegentia aegre 

 conspicuis. 



Hab. in mari rubro, frequenter; ad algas ex oris «Tahiti», in- 

 sularum nicobaricarum et Nova> Hollandiae (Exped. Novara). — 

 De pertinentia Cocconeidis coronaice Bright. dubitat ipse Grunow 

 qui opinatur Cocconeidem coronaiam Bright. verisimiliter ean- 

 dem esse speciem ac Masiogtoiam onatam Grun. 



4. Orthoneis punctatissima (Grev.) Lagerst. Diat. fr. Bohuslan 1876 1010 



