Bacillaiieae, Euaotiaceae, Clavularia. 817 



Obs. De Iioc geiiere specio.so coinparaiida videtur potius icoii 

 quain diagnosis. 



1. Clavularia barbadensis Grev. in Trans. Micr. Soc. XIII, 1865, 3277 

 p. 24, t. III, f. 1-3, Griff. et Henfr. Micr. Diat. t. 42, f. 33. — 

 Frustulis exacte linearibus (apicibus acuminatis exceptis), inargi- 

 nibus angustis, uno (superiori) crasso coloratoque,- dissepiinentis 

 transversis nuinerosis inBquidistantibus, spatio centrali excepto 34 

 a. longo laininaque levi instructo; processibus brevissiinis, validis, 

 subcapitatis, irregulariter distantibus, in rnargine superiori seriatis 

 concoloribusque, cum pseudodissepiinentis haud continuis; valvis 

 Ceratoneiden referentibus, rnedio oblongo-inflatis, punctis in uno 

 margine sitis, validis, nitentibus (centralibus vero in medio infla- 

 tionis dispositis nec marginalibus) ornatis. 



Hab. in depositu barbadensi ((Cambridge Estate » (C. Joiinson). 

 — Frustula 200-300^50. Puncta circ. 10 ■j.. diain. inetientia. 



