46 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



BIDDULPHIA SCHMIDTII (Janisch) Mann 



(Schmidt, Atlas, pi. 86, figs. 1-2; pi. 85, figs. 3-4, variety.) 



BIDDULPHIA SCITULA (A. Schmidt) Mann, new name » 



(Schmidt, Atlas, pi. 84, figs. 5-6, misnamed.) 



It is evident that Brightwell's species bearing the name of Tricer- 

 atium scitulum is a somewhat delicate variety of B. favus (Ehren- 

 berg) Van Heurck; but Schmidt groups with this two figures which 

 are not like Brightwell's variety of favus nor like its type form; and 

 in uniting the true figures of Brightwell's with B. favus he leaves 

 out these two figures. They correspond to the present species. 

 They, therefore, require a separate specific name and I here propose 

 B. scitula (A. Schmidt) Mann, new name. 



This is another species common to both Campteche Bay and the 

 Philippine Islands. 



BIDDULPHIA SECEDENS (A. Schmidt) Mann 



(Schmidt, Atlas, pi. 126, figs. 3-4.) 



BIDDULPHIA SETIGERA (Bailey) Mann 



(Smiths. Contrrb., 1854, p. 11, pi. 1, fig. 26.) 



For a discussion of the adoption of this name given in 1854, rather 

 than either of its synonyms, Triceratium spinosum Bailey (1843) or 

 T. armatum Roper (1854) see my Diatoms of the Albatross Voyages, 

 p. 309. 



BIDDULPHIA SPINULOSA (Grunow) Mann 



(Schmidt, Atlas, pi. 87, fig. 1.) 



BIDDULPHIA STOKESIANA (Greville) Mann 



(Micro. Journ., 1866, p. 8, pi. 2, fig. 23; Schmidt, Atlas, pi. 112, fig. 19.) 



BIDDULPHIA TABELLARIA (Brightwell) Boyer 



(Micro. Journ., vol. 4, p. 275, pi. 17, fig. 15; Schmidt, Atlas, pi. 77, figs. 1-5.) 



Here are included Triceratium venulosum Greville and, with con- 

 siderable doubt, var. diplosticta Grunow and T. grave A. Schmidt 

 (See Schmidt, Atlas, pi. 77, fig. 17, andTruan and Witt, Diat. Hayti, 

 pi. 7, figs. 1, 13.) 



BIDDULPHIA TEMPEREI (Brun) Mann 



(Le Diat., vol. 1, p. 33, pi. 3, fig. 7.) 



BIDDULPHIA TRIPOS (Cleve) Mann 



(Cleve, New and Little Known Diat., p. 24, pi. 6, fig. 68; Schmidt, Atlas, pi. 84, 

 fig. 8.) 



A remarkable specimen, circu'ar in form and with two processes was 

 found, as well as the typical triangular form. 



