750 Bacillariese, Striatellace», Castracaaia. 



3. Stylobiblium excentricum Ehr. in Ber. Berl. Akad. 1845, p. 80, mo 

 Mikrogeol. t. 33, XII, f. 31, Kuetz. Sp. p. 116, Pritcli. Inf. p. 805, 

 Grun. in Wien. Verhandl. 1802, p. 413, Gr. et Henfr. Micr. Dict. 

 t. 43, f. 50 d. — Valvis orbicularibus, 35 a. diarn. sequantibus. 

 lineis 5-7 excentricis laxe sculptis (nec divisis), introrsum incurvis 

 instructis. 



Hab. fossile in Oregonia (Ehrenberg). 



4. Stylobiblium divisum Ehr. in Ber. Berl. Akad. 1845, p. 80, Mikro- 3021 

 geol. t. 33, XII, f. 30, Kuetz. Sp. p. 110, Gr. et Henfr. Micr. 

 Dict. t. 43, f. 50 c. Pritch. Inf. p. 805, Gruu. in Wien. Verhandl. 

 1862, p. 413. — Valvis orbicularibus, ad 45 a. diain. inetienti- 

 bus, in medio disci 10 fere lineis pseudorhaphe lineari latiuscula 

 interruptis subparallelis (marginem non attingentibus) insti-uctis. 



Ilab. fossile in Oregonia (Ehrenberg). 



W>2 



Species mihi omnino ignota. 



5. Stylobiblium Eckhardtii Ehr. in Ber. Ber). Akad. 1845, p. 13. 



Ilab. iossWe in stratis epochae tertiariae in Hassia «Bergtesgaden» 

 (Ehrenberg). 



CASTRACANIA De Toni (Etym. a claro diatomologo italico comite 

 Francisco Castracane degli ANTELMiNELLi),<Sa/acm Pant.[1889] 

 Foss. Bacill. Ung. II, p. 08 non Linn. [1771] nec Cambess. [1820] 

 — Frustula e facie connectivali visa rectangularia, augulis obtu- 

 sis, valde elevata convexa, in fascias compressas conjuncta, cum 

 dissepimentis abbreviatis trausversis, longioribus perpendicularibus 

 inflatis et lineis perpendicularibus striolatis. Valvse elliptico-hiti- 

 ceolatae, dissepimenta transversa (costas?) prosbentes, ad polos area 

 hyalina nuda donatae; spatium interseptale striolaturn. 



I. Castracania boryana (Pant.) De Toni, Salacia Bor/jana Pant. .•^o23 

 Foss. Bacill. Ung. II, p. 08, t. 23, f. 341 (valva). — Characteres 

 generis. 



Hab. fossilis ad «Bory» Hungari^. — Longit. valvse 70-71 y.., 

 lat. 35-36 a„ dissepimenta 2 in 10 a. Area nuda elongata lauceo- 

 lata. Longit. frustul. 55-50 y., latit. 39 a., dissepimenta marginaiia 

 transversa abbreviata 2 in 10 y.., lougitudinalia 2 in 10 y. ; linea3 

 perpendiculares striolatae 3 in 10 a. 



GRAMMATOPHORA Ehr. [1840?] Leb. Kr. p. 72 (Etym. grainnia linea 

 ^t phoreo fero), Grun. in Wien. Verhandl. 1802, p. 413, Rabenh, Fl. 



