388 CONTRIBUTIONS PBOlfl nil NATIONAL HERBARIUM. 



;ii ill* i - Islands. If this l>e the case, my name hum lt i \ « ■ u. ( \ to < |< 



hut i' figure and meager description are to be trusted, the double t 



are not present and the ornamentation of the border i- totally different. Cleve 

 remarks thai his form is perhaps b variet) of ( Gn ... and refers to the 



double r.'\\ of alternating costae in tin- 1;« 1 1 « -r. It will be -i- t -w that t M my 



form are nol all and are of very different construction. They are also rela- 



tively much stouter than I there being l' s in 0.1 nun. on a valve with ;i diam- 



eter of <».!!» nun., whereas Cleve'e has i<> to 50 costae in <».l nun. on ;i valve with ;i 

 diameter of 0.12 to 0.16 nun. At any rate, this form i )••«•. I- to be accurately defined; 

 and 1 therefore figure and name it . Bubjecl to the foregoing remai 



Campylodiscus horologium Williamson, Ann. M Hist. [1.1:321. l s lv \Y. 



Smith Synop. Brit. Diat. 1: 28f. pi. 6. / 51. 1853. Pritch. Hist, [nfus. ed. ». 



• L861. Grun. Verh. Zool. Bot. Gee. Wien 12: 137. L862. Schmidt, Atlas 



pi 17. / 17. 1875; pi. 51. f. 7. 1877; pi. 107. f. L897. Dt Toni, Byll. Alg. 



tneus Grun.; Cleve ^v Moll, type no. L54. l s 7 s . < f. also 

 Schmidt, Atlas pi. 17. f. : . L875. 



Schmidl . Atlas pi. 11 . /. 5 6. 1 s 77. 

 Campylodiscus le\ \. (hall. Bot. 2: 63. pi. 11. f. 7. L8£ 



Campylodiscus orbicularis Castr. Rep. Voy. Chall. Bot. 2:64. pi. 16. f. 

 Schmidt • i is a slightly more robust, but unimportant variety of the al 



Found at station 3696, off Honshu Island, Japan. 



Campylodiscus kinkeri Sehmidt. Atlas pi. 107. /. 16. I s '»7. 



This species is closely related to C. triumphans Schmidt, and C. brightwellii Grun.;* 

 but these two, together with several other named forms, are certainly varieties of C. 

 undulatus Grev. e In the case, however, of C. hinkeri there is a massiveness in the 

 large double row of costae and a distinctness in the border which lead me tenta- 

 tively to classify my specimen as above, the agreement with Schmidt's figure being 

 exact. 



Found ai station 2920H, Hawaiian [slands. 



\ similar form from station 3696 corresponds exactly to C. erosus Castr.,d but both 

 that and my form are inner or eroded valves of some of the foregoing. 



Campylodiscus latus Shadb. Trans. Micr. Soc. Lond. n. b. 2: 16. ///. /./. IS. 1854. 

 Moeb. Diat. -taf. />l..;./. i.;. him. Grun. Verh. Zool. Bot. Ges. Wien 12: 436.1862. 

 Sehmi.lt. Atlas pi. 18. f. 11 ::. L875; pi. lOl.j. 6 11. L897. De Toni, Syll. Alg. 

 2: 617. - 

 Campylodiscus ambiguus Grev. Trans. Micr. Soc. Lond. n. s. 8:31. pi. l.f. 5. I860. 

 Mo.i,. Diat.-taf. pl.SO.f.5. L890. Schmidt, Atlas pi. 18. /. M-26. L875; pi. 51./. 

 14. 1897. Pritch. Hist. Lnfus. ed. I. 801. L861. 

 Campylodiscus contiguus Schmidt, Atlas pi. 18. / 19 W. 1875. 

 Campylodiscus aemulus Schmidt, Atlas pi. 107./. it. l s -'7 

 The specific identity of the above four form- i- unquestionable. I do not, h<>v 

 see the necessity of adding to this list C. a ntralis Greg.< or the long and dissimilar list 

 b) Leuduger-Fortmorel ' which !><• Tonic looks upon as also synonymous. It may 

 be that an examination of the diatoms themselves would show Buch identity in some 



hmidt, Atlas pi. 15. f. 4,5. L8 

 b Schmidt, Atlas pi. 15./ >>. 7. 1-77. 



I lart. Journ. Micr. Sci. 11: 229. pi. 9./ :. L8( 

 rfCastr. Rep. Voy. ("hall. hot. 2: pi. 11./ 5. L8 

 ' Trans. Roy. Soc. Edinb. 21: 501. pi. 11./ 51. 1857. 

 /M.-m. Soc. Emul. St. Brieuc M 16. L879. 

 Syll. Alg. 2: 617. L892. 



