338 



CONTRTnr riONS I-HOM the XATTONAL TIKF^IiAHIUM. 



Siaiuoplera aspera Elirenl). Tliys. Abli. Akad. Wiss. Lrrl. 1841: 21)!*, 387. pJ. 1. T.f. 



1-2, pi. /. TTL f. 1-2, pi. 2 



vi.f. 20. pi. -r it: / / (?). isi;?; Mikincr. pi i<j^ 



Hail. SmithKon. Conlr. Knowl. 7: p/. /.//.V. 1S51. 

 Slavropteraachnanfhn Elnvnl). Tliys. Abh. Akacl. Wiss. IJerl. 1841: 387. p^ ■>', ///. 



/. 7 (?), /)/. -;. ///./ 2 (?). 181:}. not Ehrenb. Mikrog. yj/. /7. /./. 10. 1851. 

 Stauroneis aspcni Kutz. ISacill. lOfi. pL £.9./. i.^a-6. 1844. 



SUiuroneis pukhdla W. Smith, Syuoj). Brit. Dial. 1: (ll, pL UK f. lU4a-b. 185:1. 

 SlauropUra ohlonga Bail. Sniiilison. Cimiv. Knowl. 7: ](). pJ. J. J. 77(?). 1854. 



/ IG 187G'? Castr. Rep. Voy. Thall. Hot. 2: 24. ;;?. 



i?<)./. 7. //. 188(5. 



Naricvla mumnjeri Jan.; Schmidt, Alias pi. 4S, f. 1 1876? 



Ndvimlii pseudoaspcra Pant. Hcitr. liacill. Ung. 3: pL 18. f, 258. 1893. 



Trachjnds aspera How, Sv. Ve^t. Akad. Ilandl. 26-: 191. p/. S. f. J7. 1S94. 



I have marked sovcral of tlio aboAc syn-inyms as doubtful, among Ihom iho S. 



ohUmfja of iiailf^, thongli what Ca^stracano calls l)y that name is an inKiiiostionablo 



rxamj>l(' of llio present spoileri. I cxdudc llio following species classed as synonyms 



by Clcve : Stauroneis robusla TeliL^, Sfauroneis pygmea Castr.^^' Narivuhi amfrawina 



Schmidt,^ Navicula residua ^vhmUh^d Narkula amphora Hnin.,e Navicula sclimldtiana 

 Grun. f 



Be Toiii, though reeognizinir Stauroneis as a valid g(^nu.'^, <'onsidcrs lliis ])arlieular 

 species to l>e a Navicida. 



Found at stations 2808, 2848, 292011, 801311. 



Navicula faspera ?) intermedia Gnni.; SchmitJt, Atlas pi. 48. f, 14-15. 1870. 



I mention this varidy separately because I think with Schmidt tluit it is (lass(Hl 

 Willi N. aspera witli nuieli difiieulty. I discovered it in different dredgings from 

 those tliat yi(4de<l A^ aspera. 



Found at stations 2807, 2823, 2919, 3011, Galapagos Islands to Bering Sea. 



Navicula bisulcata Lagers. Bih. Sv. Vet. Akad. Ilan<n. 1'^: 31. pi. l.f. 8-9. 1878. 

 Sehmidl, Atlas ;)/. 4^. f. 15, 17. JS. 1877. De Toni, Syll. Alg. 2: 150. 1891. 

 Neidiuvi bisulcalu/n Gleve, Sv. Vet. Akad. llandl. 26': G8. ISO!. 



It has the general build of N. frvm Kiitz., but is of extreme (h4icacy and fineness 

 of stru(tur(\ II reseml>!(*R far less N. scita \\. Smith. f7 to whi<-li (1(^ve compares it,t!iis 

 latter having dotted and sliglilly ra(]iating slriae and no pronounced hvaline cenlral 



an^a. 



Found at station 371211. Okhotsk Sea. 



Navicula bombus (Elu'enb.) Kiilz. S]). Alg. 83. 1849. Baldi. Fl. Eur. Alg. 1: 201. 

 1864. Greg. Trans. Roy. Soc. Edinb. 21: 484. pL ihf. 12. 1857. Douk. Bril. Dial. 

 50. pi J.f. la (m>t/ 76). 1871 73. O'Meara, Proc. Roy. Irish Acad. II. 2: 401. 

 p\. «./. 28. 1875. Schmidt, Atlas pi, 69. f. 28-29, Van Ileur. Synop. 90; Suj)i>l. 

 pi Ji. /. 22, 1885. Pritch. Hist. Infus. ed. 4. 893. 1801. Cleve, in Xord<-nsk. 

 Vf^ga Exped. 3: 471. 1888. De Toni, Syll. Alg. 2: 75. 1891. Van Hem. Treat. 

 Dial. 194. pi 3.f. 149. 1890, 

 Pinmilaria hondnts Ehrerd). Ber. Akad. Wiss. Berl. 1844: 80.. 1845. 



DiploHcis bonfbus Ehrenb. Mikrog. pi 19. f. SI. Cleve, Sv. Vet. Akad. Hand!. 26-": 

 90. 1894. 



Nadcula bombus lOhrenl).; Schmidt, Atlas ed. 2. pi 1..L J. 4-14^ ;/;. 1885. 



'UAuids do la M(M- 3: 185. pi 5./, 16a-b. 1877, 



M^istr. Hep. Voy. V\va\\. Bot. 2: 2h. pi 29. f. 7, 18SG. 



c Schmidt, AUas pi 48. J. 17-18. 1876. 



'U)p. cil. pi 48,/. 29. 



e Mem. Soc. Phys. (4 Ilisl. Nat. Geneva 31': 82. pi 15, f, .?. IS9I. 



/Schmidt, Alias pi 4S. (/. 12-13 unnamed)./. 19-^^0. 1870. 



i7Ami. Mag. Nat. Hist. II. 19: 8. pi 2./ 4. 1857. 



