I 



MA^'X DIATOMS OF THE ALBATROSS VOYAGES. 248 



in little buL the absence of a ptieudonodule. O'^Mrara's dc^ricnj)tit>n of this species^ 

 is deceptive and his figure is a mere caricature. Th(^ ith'ntity of C. Stella Ehreiih. 

 is unquestionalde and is one of the f<nv instimccs wlicre Ehrenberg's diagnosis and 

 illustration leave no doubt of the species. In this respect it <liffers markedly from 

 a case to be mentioned under the next si)ecies. Both names were given in 

 1854. Bailey's was published in February and Elirenberg's Mikrogeologie appeared 

 somewhere between August 1, the date attached to his " Vorrech^,'' and November 9, 

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

 is therefore the earlier one. 



Found at station 2807, Galapagos Islands. 



Podosira subtilis (Bail.) Mann. 



Ilyalodiscus sjihtilis Bail. Smithson. Conlr. Kn<twl. 7: 10. pJ. L f, 12. 1854. 



Schmidt, Atlas j}l. 139. f. 11, 15 (unnauKMlV 1889. W. Hendry, Quart. Journ. 



Micr. Sci. n. s. 2: 179. fig. 1861. Pritch. Hist. Infns. ed. 4. 815. p?. 5. /. /;o. 



ISGl. Witt, Yerh. Rufs. Min. Gesell. IT. 22: H;3. pi. 7./. 10. 1886. Grun. in 



Fenzl, Rei.^(' Novara Bot, 1: 27. 1870. II. b. Smith, Sp. Diat. Typ. no. 201. 



1874. Jan. & Rabh. in Rabh. Beitr. 8. pi l.f. 16. 1SG3. Cleve & Grun. Sv. Yd. 



Aknd. Handl. 17^: 116. 1880. De Toni, Syll. Alg. 2: 13CG. 1894. Castr. R(^p. 



Voy, Chall. B<.I. 2: 140. pL 18. f. -l 1880. Belit, Trams. Roy. Micr. Soc. 1: 2:^9. 



1878. II. lu Smith, Am. Journ. Micr. 3: 247. 1878. Gr. & St. Jnurn. Quek. Micr. 



Club II. 3: 67. 1887. 

 Hyalodm'iiS franUmi in (devc & Moll, type no. 2. 

 Craspcdodiscus franHitti Ehrcnb. Ber. Akad. Wli^a. Berk 1853: 526. 1854; ^likmg. 



pL 35A. XXIII. f. Ga, b. 1854 ? not Podosira franWud Grun. 1878. 

 Melosirafrankl'uu Gleve, Bih. Sv. Vet. Akad. Handk 25: 216. 1868. 



"Whether (»r not Ehrenberg's C, franklini is identical with this can only be det(M-- 

 mined by knuwlt^dge based on a study of the cjriginal niatti'ial cullected by the expedi- 

 tion of Captain Penny in 1850 at Assistance Bay. That the diagnosis of Elu'enberg 

 as well as his figure would suggest the al>ove i^ certain; and many authors accept this 

 wilhout question. In that case the species would require a new name; l>ut until 

 certainty takt^s the place ui conjecture Bailey's name should be undipturbed. A 

 testimony adverse to looking on the two as tho same is that of Petite <' who soys Huit 

 P . franklini '^has very fine radiating striae, eertniidy invisible with the o1)jectives used 

 by Bailey twonty years agr).'* This may be so or not. One thing is evident, that 

 Ehrenberg's figures of C.frnnklini an^ far more conv(^x tlum th(^y should be for P. suh- 

 tills. I have concluded that the two are prol>ably the samOj not certainly s<i; and I 

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



Found at stations 2848, 3603, 3004, and 3607, Bering Sea. 



STEPHANOPYXIS Ehrenb. 



AS'/f/>Aa/^toy^//ji.v Ehrenb. Ber. Akad. Wiss. Berk 1844: 264. 1845, assubg.; 1845:80. 



1846. Char. Emend. Grun. Denkschr. Akad. Wien 48-^r 34. 1884. Grev.; Gre^. 



Trans. Roy. Soc. Edinb. 21: 537. 1857. Priuh. Hist. Infus. od. 4. 826. pi. 5./. 



74-75. 1861. Ehrenl>. Mikrog. pi 18, f, -I G (not/. 7); pi VJ.J. 13. 1854. (astr. 



Rep. Voy. Chall. Bot. 2: f^7 . pl.Oj. 5. 9. 1886. Do Toni, Syll. Alg. 2: 1137.1894. 



Van Ileur. Treat. Diat. 434./. 158. 1896. 

 Sysfcphania Ehrenb. Ber. Akad. Wiss. Berk 1844: 264. 1845. Mikrog. pi 33, XV. 



/. 22, XVTI.f. 16, XVIIT.J, 11. 1854. Kiilz. Sp. Alg. 126. 1840. Castr. Pep. 



Voy. Cliall. P>ot. 2: 150. pi 9.f. //, pi 30,/. 3 (not/, f). 1886. 



<^ Pnu'. Roy. Irish Acad. IT. 2: 250. pi 26./. 5a. 1875 

 &Ber. Akad. Wiss. Berk 1854: 629. 1855. 

 c Journ. Rov. Micr. Soc. 1: 239. 1878. 



