344 CONTKUmTlONS FROM TiiE NATIONAL IIERBAKIUM. 



Navicula holmicnsis CU'vc^ Sv. Yd. Aka<l. IlaiuU. 18-^: S. pL 2, / IS. 1881. 

 Navicula Ub^irnira Gruii.; Van lltnir. Synop. 102. ph tl,f. 5, 1881-85. 

 Caloneis fonuosaClQve, Sv. Vv\, Akad. Ilandl. 26-: 57, 1891. 



The truly trant^viTso striae oi N. fonnosa fosf^His Panl.*^ iiniko*^ it a ({Ufstidnablo refor- 

 ence to tlie |;il>t)vr. Cleve puts it iu Calonns librr (\V. Smith) Clove. ^ Gregory's 

 orijjfiiial ligure isaliLLlu more coarsely striaU'd tliaii normal. 



Found at station 2929, off southern OaUf(»rnia. 



Navicula gemmata Grev. Edinh. New Plul. Journ. n. .s. 10: 30, pi. ?./. 7. 1850. 



Grun. in Fenzl, Reise Novara BoL. 1: 100. pLlA. f. IC, 1870. Schmidt, Atlas 



])l8j.S8,42. 1875; pL 70./. 7-^ (unnamed). 1SS2. Tant, Beitr. Bacill. Ung. 1: 



2b. pl.20j.I8L 1880. DeToni, Syll. Alg. 2: 09. 1891. 

 Diplonris gnvmafaCleye^ Sv, Vet. Akad. TIandl. 26": 08. 1894. 

 Navicuh pseudogemmataV^nt.}^v\tr, UatMll. Ung. 3: pi. 29. f. 420. 1893. 

 Navicula grnnoivii Rabh. err, det. Schmidt , Atlaf^ pL 70./. 7-3. 1882. 

 Navicula pr'iHliophora Schmidt, Alias pL 70 J. 72. 1882. 

 Navicula nu'dUcrrancana Grun.; Schmidt, Allans pL S.f, 40, 1875 (?); Jahrosb. Komm. 



Dcut. Meere2: pi 2./. 10. 1874. 

 Navicula eudoxia Sclinudi, Ailiit^ pi. S.f. 39. 1875; pi. 70. f .71. 1882. 

 Navicula cJiimwoavn O'Meara, Quarl. Journ. Mici. Hvi. n. s. 12: 2Hb. pd. IS. f. L 



1872. Moeb. Diat.-taf. plSLf. I. 1890. 

 Navicula suhteiiy}.^ O'Mi^ira, Quart. Journ, Micr. Sci. n. s. 12: 285. pi. hi. J. 2. 



1872. Moeb. Diat.-taf. pi. 81. J. 2, 1890. 

 Navicula hipunclala O'Meara, Quart. Journ. Micr. Sci. n. s. 12: 280. pl.I-Lf.S. 



1872. Mueb. Dial.-taf. pi Sl.f. 5. JS90 ? 

 Navicula ifnipumiataO'lslviUii (?) QnarL Juurn. Micr. Sci. n.s. 12: 280. pi IS, f, 4' 



1S72. M(K^b. Diat.-taf. pl8Lf.4- 1890. 



I exclud(* from the abctve the lollowin^^ inclmlcd l>y Ch'vi": A^ ba6ill:a Bruu ^ 

 and N. speciabilis Gruii.^^ Tliis lawL is a prt'*nnpled name, having lieen used by 

 Gregory in 1850. Ralx'tdiursl tlun'efore rt'uamctl it A', (jriftionii.^ It is not the same 

 as the form so called by S( hinidt, which is inchidcd here. 



Fouuil at station 292011, Hawaiian Ishmds. 



Navicula graeffii Grun.; Schmidt, Atlas pl7. f.-^-fi. 1875. De Toni, SylL Alg. 2: 

 94. 1891. 

 Diploneis graeffii Clv\i% Sv, Vet. Aka<l. Hnndh 26-: 9:^ 1894. 

 Found at station 45lt)II, Gulf of ralifonua. 



Navicula gyrinida Mann, sp. nov. Flate LIT, figure 6. 



Valve broadly oval, curving from tlie center to the rounded ends; markings 

 moniliform striae, extcn<ling from the margin to a line inclosing a spindle-shaped 

 central area; this area ril)l)ed transversely with smootli striae confluent with ihe 

 outer moniliform striae, these last being radiate; a minute H-shapod hyaline central 

 pace. 



s 



Length of valve, 0.051 nun. ; width of valve, 0.035 mm. 



This species is close to the unnamed figure of Schuiitlt's,/ of wliicli he says, '*mit 

 N. dliplica schwerlich zu vereinen/' Ills certainly impossible tO call it N. ellip- 

 tica Kutz.ff Xor can it be either uf the irreconcilubU' figures of V. dliplica W. Smith.'' 



aPant. Beitr. Racill.T'ng. 2: 40. p7. 20. f. S10. 1889. 



?>Sv. Vet. Akad. Handl. 26-: 55. 1894. 



cMem. Soc. Phys. etilist. Nat. Geneva 31': Wl. pi 15. J. H 1891. 



^Verh.Zool.Bot. Ges. WienlO: 533. />?././. ;/. 1800. 



^Rabh. Fl. Eur. Alg. 1; 203. 1801. 



/Schmidt, Atlas p7. 7./.?^. 1875. 



£?Kutz. Bacill. 98. pi 30. f. 56. 1844, ami Van lleur. Synop. pi 10 T 10, 1881, 



ft W. Smith, Synop. lb-it. Dial. 1: 48. pi 17, f. 152. 1853. 



