Bacillariese, Trachyspheniaeeoe, Peronia. 649 



liab. iii inari [)acifico boreali (Grunow). 

 4. Opephora pinnata (Ehr.) Petit Diat. Cap Horn p. 131, Fragila- 2579 

 ria pinnala Elir. in Ber. Berl. Akad, ex parte et Mikrogeol. 

 ieon. p. p., Jan. et Rabenh. Diat. Hondur. p. 8, t. 2, fig. 18!, Jan. 

 Guano t. 1, A, f. 29! — Frustulis e facie connectivali visis sub- 

 linearibus, apicihus truncatis, valvis 38-40^:9-10, lanceolatis, api- 

 cibus rotundatis, raargine costulis latis instructis, pseudorhaphe 

 modice lata. 



Hab. in Guano Peruviae (Janisch); inter Algas raarinas ex 

 ((Honduras)) reportatas (Janisch). 



PERONIA Br6b. et Arn. [1868] in Micr. Journ. 1868, p. 16 (Etym. 

 perone fibula), V. H. Syn. p. 145, De-Toni Osserv. tasson. Bacill. 

 1890, p. 905, non DC. nec Wallich, Gomphonema sp. Breb., Sy- 

 neclrce sp. W. Sm. — Frustula et valvse cuneiformia, habitu Gom- 

 phonematis sed nodulo centrali et pseudorhaphe nullis. 

 Frustula sessilia, solitaria vel gerainata. 



1. Peronia erinacea Breb. et Arnott in Micr. Journ. 1868, pag. 16, 2580 

 J. Q. M. C. 1870, p. 38, t. I, f. 8, V. H. Syn. p. 145, t. 36, f. 19, 

 Gomphonema Fibula Breb. in Kuetz. Species p. 65, W. Sm. Br. 

 Diat. II, p. 100, Rabenh. Fl. Eur. Algar. I, p. 287, S;/nedra spi- 

 nulceformis W. Sm. mscr., Synedra Fibula W. Sm. in Cat. Brit. 

 Mus. p. 33. — Valvis angustis, 40-50 u.. longis, cuneatis, apice su- 

 periori rostrato-capitato ; nodulis terminalibus ab apicibus reraotis; 

 striis latiusculis, parura conspicuis, circ. 15-16 in 10 y., pseudorha- 

 phe vix distiucta interruptis; facie connectivali cuneiformi, striis 

 marginalibus, 



Hab. in aquis dulcibus ad ((Falaisen Gallise (Brbbisson) ; in 

 «Sussex» Angiire (W. Smith); ad (( Corniraont » Belgii, raro (De- 

 logne). 



2. Peronia ?antiqua Grun. in Mois. et Neura. Beitr. Palaeont. CEsterr. 2581 

 Ung. u. des Orients 1882, p. 140, t. 29, f. 8-9. — ValvJs cuuea- 



tis, 22-50:^3,5-4, apicibus rotundatis, pseudorhaphe angusta; striis 

 transversis obscuris, circ. 16-18 in 10 y.., nounullis crassioribus 

 intermixtis; nodulis terrainalibus imperspicuis. 



B-ob. fossilis ad «Dubravica» pr. « Neusohl » Hungariae. — Ad 

 Meridionaceas transitura efficit. 



