266 Bacillarieae, Naviculaceae, Scoliopleura. 



Indian Archipelago p. 8, t. II, f. 12, Grevillea 1878, p. (38, J. M. 

 1879, p. 28, t. 1, f. 12. — Valvis latis, lanceolatis, 90-105 = 36, 

 rhaphe excentrica, curvata, spatio hyalino excentrico medio irre- 

 gulariter ampliato, apices versus seusim angustato cincta; structura 

 granulata, granulis ut in Navicula aspera lineas decussatas obli- 

 quas (et transversas angustiores) efficientibus, 10-11 in 10 u. ; li- 

 neis transversis rhaphen subattingentibus. 



Hab. ad «Maugroove Swamps. Elephant Point» Indiae orientalis 

 (Kurz). 



11. Scoliopleura? curvinervia Pell. Diat. p. 292, f. 236, Navicula 1117 

 (Alloioneis) curvinervia Grun. in Cleve Diatoms from the West 

 Indian Archipelago p. 8, t. II, f. 13, J. M. 1879, p. 29, t. 1, f. 13, 

 Grevillea 1878, p. 68. — Valvis oblongis vel lanceolatis, 68-115 = 

 22-28, apicibus obtusis, rhaphe excentrica,- striis leniter radianti- 

 bus, rhaphen non attingentibus, vitta hyalina longitudinali acuta 

 utrinque interruptis, levibus (sub lente maxime augente delicate 

 punctatis), 8-9 in 10 u. 



Hab. ad «Mangroove Swamps, Elephant Point» Indiae orientalis 

 (Kurz). 



12. Scoliopleura Gruendleri (Cl. et Gr.) Pell. Diat. p. 291, f. 235, ms 

 Alloioneis? Gruendleri Cleve Diat. from West Indian Archipe- 

 lago p. 7, t. II, f. 10, Grevillea 1878, p. 58, J. M. 1879, p. 28, 



t. I, f. 10. — Valvis late lineari-oblongis, 75-98 » 28, apicibus cunea- 

 tis, rhaphe valde excentrica, subarcuata, nodulo centrali transverse 

 dilatato ; striis transversis distincte punctatis, rhaphen attingen- 

 tibus, 11 in 10 u., tantum aream parvam circa nodulum centralem 

 linquentibus. 



Hab. ad insulas Virginum rarissime, in sinu Campechiano 

 (Grunow). 



13. Scoliopleura? fallax De-Toni, Navicula Scoliopleura A Schm. 1119 

 Atlas t. 46, f. 63 (absque diagnosi). — Valvis oblongo-ellipticis, 



82 = 20, apicibus productis, rotundatis, rhaphe subsigmoidea; costis 

 vix radiantibus, discretis, mediis duabus utrinque abbreviatis. 

 Hab. in sinu Campechiano (A. Schmidt). 



14. Scoliopleura? alternans (Schum.) De-Toni, Navicula alternans 1120 

 Schum. Diat. H. T. p. 72, t. 3, f. 48, A. Schm. Atlas t. 42, f. 22-23. 



— Valvis elongato-ellipticis, apicibus rotundatis vel subcuneatis, 

 costis in una quam in altera dimidia valva longioribus, in una rha- 

 phen subattingentibus, in altera praecipue ad nodulum excentricum 



