382 CONTRIBUTIONS FROM I ill NATIONAL HERBARIUM. 



Gmi \ hi Heur. Sj H"|>. pi \ s M . 



\ latitucula Grun. ; Van Heur. Synop. pi 38] 



I leave out of th<- above list Navicula lamproeampa Ehrenb., here included by 

 I •■ Toni,& and NiUtchia clauti Hani ich< placed here by Grunow.d II I Smith, 

 by changing Anijifi . mtoidea W. Smith, noidea hae confused 



it with the real Nxtzachia rigmoidea \V. Smithy a diatom that can nol l»- included 

 here. Regarding A', tigmatella Greg. ' 1 can Bee no reason i"i including i( hen 

 done by D<' Toni and others. There can be no doubt of the V. tigma tigmatella 

 (irun .'■■ included above, which is a <|iiii<' different diatom. 

 Pound at station 3712H, about 100 miles off < Oregon. 



SPHINCTOCYSTIS Haas. 



Sphinctocystis Haas. Hist. Brit. Alg. 1: 136. pi. Wt.f. i s i"> 

 < \j in part; Kutz. Linnaea8: 554. 1833. 

 tula Bory, in part; Ehrenb. [nfus. L85. pi. 13./. 

 Denticula Km/, in pari ; Bacill. 1 1, pi L844. 



■ \a Turp. in part; Ehrenb. Mikrog. pi. 15A f 50 51. L854. 

 Cymatopleura W. Smith, Ann. Mag. Nat. Hist. II. 7: 12. pi. ,. /. 8 9. 1851; 

 - nop. Brit. Diat. 1: 36. pi. 10. f. 78 81. L853. II. I.. Smith, The Lena 1 

 1872. Elalfs, Pritch. Hist. [nfus. ed. I. 793. L861. Van Heur. Synop. 167. 1881; 

 Treat. Diat. 366./. 119. L896. Brun, Diat. Alp. 96. L880. De Toni, Syll. Alg. 2: 

 598. L892. 

 Although this genus shows close relation to Surirella Turp., and even closer to the 

 forme <>i Nitzschia Hass., which wen- formerly included in Tryblionella \\ . Smith, 

 ii- distinctness ia generally conceded.* 



Tin- older name of Hassall ie here restored. Smith, in rejecting this aame, 

 • I Bhould have been glad to have adopted Mr. Ha— all- genus 'Sphinctocystis,' but 

 a- this term refers merely to a peculiarity in the external form of one species, I am 

 obliged to reject it." [f the failure of a name to be accurately descriptive were 

 \ali<l cause for its rejection, Smith's substitution would also have to go. 

 Sphinctocystis librile (Ehrenb.) Hass. Hist. Brit. Alg. 1: 436. pi. Wt.f. S 

 Navicula libril Ehrenb. Phys. Abh. Akad. Wiss. Berl. 1831: 81. 1833; 1833: 267. 



L835; Ber. Akad. Wiss. Berl. 1836: 53. L837; [nfus. 185. pi. /;../". It. \% 

 Frustulia quinquepunctata Kiitz. Linnaea 8: 554. pi. 14. f. 28. L833. 



ellasolea Breb. in Breb. & God. Consid. L7. L838. Km/. Bacill. 60. pl.S.f. 

 SI. L844. Kal.li. Sussw. Diat. 28. pi. ;../'. 7b c. 1853. Ktttz. Sp. Alg. 34. L844. 

 Weisse, Mel. Biol. Acad. Sci. St. Petersb. 4: 660. pi. /../'. 18. I* 

 & irella libriU Ehrenb. Mikrog. pi. 6. /../'. 19, pi. 14. / 98. L854. 

 Cymatopleura solea W. Smith, Ann. Mag. Nat. Hist. II. 7: 12. pl.S.f.8 9. L851; 

 Synop. Brit. Diat. 1: 36. j>l. 10. f. 78. K~>:',. Pritch. Hist. [nfus. ed. I. 793. pi. 9. 

 f. 1 55 (figure poor), />!. 16./.9. L861.' Rabh. Fl. Eur. Alg. 1: <;<>. L864. Grun. 

 Verh. Zool.-Bot. Ges. Wien 12: 466. 1862. II. I.. Smith, Sp. Diat.Typ.no. III. 

 l-:i. Brun, Dial. Alp. 97. />/. /../'. 10. 1880. Cleve a Moll, type no. 226 227. 

 Van Heur. Synop. pl.55.f.5 7. L881; Treat. Dial. 367. pi. It. f. \8tb. L896. 



a Kin/. Bacill L02. pi. .;./. 5. 1844. 



I». Toni, Syll. Alg. 2: :>:;<>. 1892. 



Hedwigia 2: 40. I860. 

 -/.I. .urn. Roy. Micr. Soc. 2: 22. 1879. 

 ' W. Smith. Synop. Brit. Dial. 1: 38. /<!. 18. f. 104 1853. 

 rQuart. Journ. Micr. Sci. 3: 38. />!. ',.(. P. L855. 

 r/ Van Heur. Synop. />l. 66. f. 6. 1881. 

 >' See remarks under t iymatopleura by W.Smith, and by Rolfs in the above citations. 



