3/(5 COXTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



expuiiriluiiti on llii' Vi.'ntral sidu of tlie raphe in A, oculus and its mon* massive l)uild 

 ]nake this nnion doubLfuh II i^ ao united Ity Fricko." A. proUms hiriatia Grun.,^ 

 lias also a strong rosoniblaiico Lo the above. I yce lU) rc-a«on for unitin^^ wilh tlieso, 

 under the gon(*ral nariie A. oculus Sehniidlj tlie quite diffident A.Jammm Grun., A, 



wcissfogii Schmidt, and A, hanwrthcnsis Grun., as scn^ns to be don(^ l^y Friek*^'' It 

 may be said thai ('h^v(.'^ akso unites A. honjana Pant, \vilh the al>ove, and De Toni^ 

 includes it as varicly boryana^ but ^\ ith a (^ucstlt)!! mark. 



My specimens agree best with Cleve's figure,/ though they are smalh'r forms, I heir 

 average length being 0.070 nun. and their width 0.023 nun. I look upon tlie diatom 

 ligun'd in Schmi(h's Atlas £7 bearing the above name, as a quite distinct species. 



Fonml at stations .'ili^S, ;?712H, off Honshu Tslantl and in Okhotsk Stni. 



Amphora pellucida Greg. Trans. Roy, Soc. Edinb. 21: 513. pi. ILf. 7A. 1S57. 

 Schmidt, Atlas pi, 27. f. 11, 36-37, 65. 1875. H. L. Smith, The Lens 2: 78. pL -J. 

 f. 15. 1873. De Toni, Syll. Alg. 2: 405. 1801. 



It is })OHsible this is a delicate variety of A. ovalis Kiitz., as treated hy Habeidiorst,'^ 

 a view also seemingly favored by IF F. Smith and De Toni above. Clevi' f says it is 

 '■to<^ imp<Tfectly described and figured for admiltiug o( identification' (whidi is not 

 ^ the <*ape); and then he jiroceeds to identify it by putting ir in A. marina {W. Smitli?) 

 Van Hour. Again j he places it, as figured in Sc^hmidt's Atlas at above ic^nrence^ 

 exclusive of ligure rt5j in .F commutata Gruri, If it is to i>e ineludod in any oth<'r 

 species, it should be in .1. oralis Ktitz., but 1 ihink there it^ sufficient doubt aboul this 

 to justify its being allowed to stand. 



Found at station 202011, Hawaiian Islands. 



Amphora spectabilis Greg. Trans. Roy. Sue. Edinb. 21: 510. pi. 13. f. SOa^ J, e (not 

 /. sob, v). Schmidt, Atlas pi. 40 J. 20-23. 187G. H. F. Smith, The Fens 2: 80. 

 pi, S,f. S. 1873. Cleve, In Nordensk. Vega ExpecJ. 3: 4B2. 1883; Sv. Vet. Akad. 

 Handl. 27*: 132. 1805. De Toni, Syll. Alg. 2: 108. 1891. 

 Aii}phomJ}irvata Feud.-Fort. Aleni. Soc. Emul. St. Biieuc 20* pi, L /. 11. 1879. Do 

 Toni, Syll. Alg. 2: 102. 180F 



The claim made by Fouduger-Fortmorel, al)ove, that Schmidt's figures, alxive, are 

 not Gregory's speclabiH;^, but a distinct spt^cies, wliicli h(^ also figures and to which he 

 gives the specific Tawnv/urcaLUj is supported by De Toni, abov(\ I do not agret' with 

 this view, but take the position stated by Flevc A' that Schmidt's and F(Midug(M'-t\ti t- 

 moroFs forms arc oidy a variety of Grcg<iry's species. A careful reading of Gregory's 

 long description of this diatom wnll make it (evident lliat tlie only particular in wliich 

 ii fails to com^spond with Schmidt's figures is in the forking of the inn(T cxUh of the 

 striae on tlie dorsal side. Gregory says his specMnnnis were vory dimly striated (m 

 that side, so much so that though the striae were evident near the dorsal nuugin, the}' 

 faded away toward tln^ inner ends. Without doubt this fact prevented his noting (In- 

 forking of these striae; though it ought (tt be added that this forking is by no nutans 

 invariabh^ as is to be seen by etnnparing Schmidt's figure 20 with his figure 21. So 

 far as my (experience goes, the figure of Feudugisr-Fortinorel seems overdrawn !n the 

 irreguhu'ity of tlu^ strine. 



Found at station /iOOSj off Honshu Island, Jajtan. 



"Fricke, Verzeiehniss /u SchmidFs Atlas 10. \')02, 



^Cleve & Grunow, Sv. Vet. Akad. Ilandl. 17'-: 24. pi. l.f. 7. FSSO. 



^Cleve. Sv. Vet.-Akad. Handl. 27^: 105. 1805. 



dOp. cit. S. 



^Syll. Alg. 2: 100. 1891. 



/Op. cit. pi. 4./- 15. tCleve, op, cit. 103. 



gPl, 27, f. 49. 1875. iriove, op. eit. 110. 



'^Fl. Eur. Alg. 1: 02. 1804. A:Fleve, op. cit. 132. 



