.MANN DIATOMS OF Mil. ALBATROSS VOYAGES. 243 



in little bul the absence of a pseudonodule. 0'M< ■■ < d< ■ ription of th 



is deceptive and bis figure is a mere caricature. The identity of C. stella Ehrenb. 



ia unquestionable and is one of the few instances where Ehrenb< 



illustratioD Leave do doubt of the Bpecies. En this respect it differs markedly from 



a case i" be mentioned under the next species. Both names en in 



1854. Bailey's was published in February and Ehrenberg'* M 



Bomewhere between August I. the date attached to his "Vorrede,-^ and November 9, 



th. date when he exhibited the first copy to the Berlin Academy.^ Bailey's name 



i> therefore the earlier one. 



!■' in. I at station 2807, Galapagos Islands. 



Podosira subtilis Bail. Mann. 



Hyalodiscus subtilis Bail. Smithson. « ontr. Knowl. 7: L0. pi. 1. f. 12. 1854. 



Schmidt, Atlas pi. 1S9. f. //. 15 unnamed . L889. \\ . Eendry, Quart. Journ. 



Micr. Sci. n. -.2: L79. fig. L861. Pritch. Hist, [nfus. ed. L 815. pi 



1861. Witt, Verh. Russ. Min. Gesell. II. 22: Hi:',, pi 7.f. . - Grun. in 



Fenzl, Reise Novara Bot. 1: 27. Into. II. L.Smith, Sp. Diat. Typ. qo. 201. 



L874. Jan. & Rabh. in Rabh. Beitr. 8. pi. l.f. 16. L863. Cleve & Grun. - , . Vet. 



Aka.l. Han. 11. 17-': L16. L880. De Toni, Syll. Alg. 2: L366. Rep. 



Voy. Chall. Bot. 2: 140. pi. L886. Petit, Trans. Roy. Micr. So- 1:239. 



L878. II. I.. Smith. Am. J.. urn. Micr. 3: 247. L878. Gr. & St. Journ. Quek. Micr. 



Club II. 3: 67. L887. 

 Hyalodiscus franklini in Cleve & Moll, type no. 2. 



ipedodiscus franklini Ehrenb. Ber. Akad. Wiss. Berl 1853: 526. 1854; Mikrog. 



pi S5A. XXIII. f. '■<>. b. L854 ? nol Podosira franklini Grun. L878. 

 Melosira franklini Cleve, Bih. Sv. Vet. Aka.l. Handl. 25: 216. L8i 3 



Whether or not Ehrenberg's C. franklini is identical with this can only be deter- 

 mined by knowledge based on a study of the original mat. -rial collected by the expedi- 

 tion of Captain Penny in 1850 al Assistance Bay. That the diagi - nberg 

 as well as his figure would suggesl the above is certain; and many authors accept this 

 without question. In thai case the Bpecies would require a new name; but until 

 certainty takes the place of conjecture Bailey's nam.- should be undisturbed. A 

 testimony adverse to looking on the two as the same is thai of Petit, c who says that 

 P. franklini "has very fine radiating striae, cert a inly invisible with the objectiv< - 

 by Bailey twenty years ago." This may 1..- soornot. One thing is evident, thai 

 Ehrenberg's figures of ( '.franklini are far more convex than they should be for / 

 tilis. I have concluded that the two are probably the same, not certainly so; and 1 

 have accordingly placed Ehrenberg's name in the synonymy with a question mark. 



Found at stations 2848, 3603, 3604, and 3607, Bering Sea. 



STEPHANOPYXIS Ehrenb. 



Stephanopyris Ehrenb. Ber. Akad. Wiss. Berl. 1844: 264. L845, as subg. ; 1845: 80. 

 L846. <'har. Emend. Grun. Denkschr.Akad. Wien 48 2 : 34. L88 

 Trans. Hoy. Soc. Edinb. 21: 537. 1857. Pritch. Hist. [nfus. ed. !. 826. pi 



I ',. L861. Ehrenb. Mikr 6 not/. : ; pi 19 



Rep. Voy. Chall. Bot. 2: 87. pi. 9.f. 5. 9. 1886. De Toni, Syll. Alg. 2: II:'.:. : 

 Van Il.ur. Treat. Diat. 434./. 158. L896. 

 ephania Ehrenb. Ber. Akad. Wiss. Berl. 1844: 264. L845. Miki e .XV. 



22, XVII. f. 16, XVIII.f. 11. L854. Kin/. Sp. Alg. L26. 3 

 V..y. Chall. Bot. 2: L50. pi 9.f. 11, pi 



Pi Roy. [rish Acad. II. 2: 250. pi. i 1875. 



Mi. r. Aka.l. Wiss. Berl. 1854: 629. - 

 urn. Hon-. Micr. Soc. 1: 239. Lfi - 



