388 COXTRIBUTIONS FEOIM THE NATIONAL IIEFiBAEIUM. 



aL the GalapLiy;ori Itjlaiids. If Lhit> be the case, my name muHt give way to Cleve*s. 



But if his poor figure and meager description are to be trusted, the double row of 

 coptae lire not present and the ornamenlation of the border is totally different. Cleve 

 remarks that his form is perhaps a variety of C. ecclesiarufs Cirev., and refers to the 

 double row (tf alternating c^jstae in the latter. It will be seen that the costae in my 

 form are not allernating and are of very iliffercnt coiistruetion. They are also rela- 

 tively nuirU stouter tlian Aleve's, there being 28 in OJ mm. on a valve with a (iiatu- 

 eter {>f 0.10 nun., whereas Clevo's has 40 to 50 costae iu 0.1 mm. on a valve with a 

 diameter (»f 0.12 to 0. 10 mm. At any rate, thif! form needs to be aceurately defined; 

 and 1 therefore iigure and name it, Lsubjeet 1(t the foregoing remarks. 



Campylodiscushorologium Williamson, Ann. JIag. Xat. Hist. II. 1: 321. 184S, W. 

 Smith Synop. Brit. Diat. 1: 28. pi 6./. 5L 1S53. Pritdi. Hist. Infus. ed. 4. 

 79!). 18(]1. Grun. Verh. Zoot. Bot. Ges. Wien 12: 437. 1802. Schmidt, Atlas 

 pL 17. f. 17. 1875; j)J. 51./. 7, 1877; p?. W7j, 23-25. 1897. De Toni, Syll. Alg. 

 2: 010. 18!J2. 



Campylodlscus meditcrranrus Grun.; Cleve & Moll. 1yp(> no, 154. 1878, Cf. also 

 Schmidt, Atlas pi 17./. 7. 1875. 



Catnpylodiscifs p/itzcri Schmidt, Atlas pi 17./. 5-6. 1877. 



CampfjlodlHrna Icpidus Castr. Rep. Voy. (1udl. Bot. 2: 03. pi 11./ 7, 1886. 



Campyh nVi .^ciis orhkularu Castr. Rep. Voy. duill. Bot. 2: 04. pi 16./ 10. 1880. 



Schmidt's C pjitzeri is a slightly more robust, but unimportani variety of the al)ove* 

 Fountl at station 3090, <»tT Honshu Island, Japan. 



Campylodiscus kinkeri Schmidt, Atlas pi 207./ 16. 1897. 



Thisspeeies is closely related to C. triumphans Sclimidt," and C. bright nilluGnui.;^ 

 but these two, together w ith several other luuned forms, are certainly varieties of C. 

 undidaina Grev.<^ In tlie case, however, of C. kinkeri there is a massiveness in the 

 large doulde row of costae and a distinctness in the border whi( h lead me tenta- 

 tively to classify my s])ecimen as above, the agreement with Schmidt's figure lacing 

 exact. 



Found at station 292011, Hawaiian Islands. 



A similar Umw from station 3600 corresponds exactly to (\ erontis Castr.,<^ but both 

 that and my form are inner or er(»ded valves of some of the ft)regoing. 



Campylodiscus latus Shadb. 4^rans. Micr. Soc, Lond. n. s. 2: It;, pi 1./. 13. 1854. 

 Moel). Dial .-taf. pi 3./ UL 1890. Grun. Verb. Zool. Bot. G(\s. Wien 12: 130. 1802. 

 Sclunidt, Alias pi 18./, 11-22. 1875; pi 207./. 6-11. 1897. Do Toni,- Syll. Alj^, 

 2: (il7. 1N92. 



Campylodisnfs ambigiufs (Ircv. Trans. Micr. Soc. Lond. n. s. 8: 31. pi 1./. 5. 1800. 



Moeh. Diat.-taf. pi 30,/. 5. 1890. Schmidt, Atlas pi 18./. 23-26. 1875; pi 51./. 



14. 1897. Pritch. Hist. Infus. ed. 4. 801. 1801. 

 Canipylodtscus con!i(jun.s Sclunidt, Atlas ;>/, IS./. 19-20. 1875. 

 Campylodiscus aenudus Schmidt, Atlas pi 207./. 12. 1897. 



Th(^ specific identity of the a1)ove four forms is unquestional)lc. I do not, however, 

 see tlu^ n(V(>ssity of adding to this list C. ccntndt;^ Greg.^ or thelnn^r and dissimilar list 

 by Lcudugcr-Fortmorel / which De Tonii? looks upon as also synonymous. It nuiy 

 be that an examination of the diatoms tlu^insclves Avould show such identity in sinue 



a Schmidt, Atlas pi 15./ 4, 5. 1877. 



& Schmidt, Atlas pi 15./ 6, 7. 1877. 



c Quart. Journ. "Micr. Sci. 11: 229. pi 9./ 4. 1803. 



^ Castr. Rep. Voy. Chall. Bot. 2: pi 11./ 5. 1880. 



e Trans. Boy. Soc. Edinb. 21: 501. pi 11./ 51. 1857 



/Mem. Soc. Emxd. St. Briouc 44-46. 1879. 



</Syll. Alg. 2: 017. 1892. 



