350 CONTRIBUTIONS l^ROM THE NATIONAL HERBARIUM. 



Cynibdia ])hofnia"nleron Ag. Consp. Diat. ]0. 18B2. 



Stauroncis lanccolulu Kutz. Bacill. 104. pi. SO. f. 24. 1844. Grun. Verb. Zm,]. Bot. 

 Gas. Wien 10: 5G3. 1800. Piitcli. ITist. liifius. ed. 4. 913. ISfil. llabli. Sii.'^sw. 



Diat. 48. pi 9. f. 9. 1853. 

 Stauroneis phoenicfnternn Ijhrenh. Pliys. Al)h. Aka<l. Wiss. Bed. 1841: 387. 

 pi f. V. J. I, pi 3. I. f. 17. 1843; Mikrog. pi 2. II. f. 8, pi ,1 /. /. 7. 77. /. 

 4, pi G. I. J. 21, pi 9. T. J. 15, pi 15. I. A. J. 27. B. f. 10, pi 16. I. f. 5. II. 

 f. 5, III. f. 2H. 1854 (not Ehrenb. Pbys. Abb. Akad. Wiss. Berl. 1870: 

 pi 2. I.f. 29, pi ?,. I.J. 21. 1871). Rabb, Susaw. Diat. 47. pi .9./. 1. 1853. W. 

 Smith, Synop. BriL Diat. 1 : 59. pi 19. f. 185. 1853. Biiicb. Ilist. Infus. ed. 4. 913. 

 pi 9.f. 139, pi 12. f. 17-18. 1801. Brun, Diat. Alp. 88, pi 9./. 5. 7. 1880. Griff. 

 & Hcnf. Micr. Diet. ed. 4. 735. pi 15. f. 43. 1883. Van Hour. Synop. 07. pi 4- 

 f. 2. 1881; Tr<'at. Diat. 158. /. SO, 159. pi 1. f. 50. 1896. De Toni, SylL Alg. 2: 

 204. 189b Clove, Sv. Vet. Akad. Ibxndb 26-: 148. 1894. IL b. Smith, Sp. 

 Diat. Typ. no, 490. 1874. Belloc, Rev. do Comm. 3: 40. pi S.f. 11. 1887. Not 



■ft 



Kiitz. 

 StauToneis haileyi Ehrenb. Pliys. Ablu Akad. WLss. BerL 1841: 422. ]843; Mikrog. 



vl. 2, IIL / 



/ 



III J. 2, pi 5. Lf, 13. IIL J. 14, pi 6. If. 17. 1854. Kutz. BaciU. 105. 1844. 

 Pritch. Hist. Infus. ed, 4. 913. ISfil. Do Toni, Syll. Alg. 2: 207. 1891. 

 Stauroyuis pteroidca Ehrenb. Phys. Abh. AkacL Wiss. BerL 1841: 423. 1843; 

 Mikrog. pi 14, I. /■ -5. 1854. Kutz. BacilL 105. 1844. Do Toni, SylL Alg. 2: 



207. 1891. 

 SlauToneis amphilepUi Ehrc^nb. Phys. Abh. Akad. Wiss. BerL 1841: 38G. pL 1. II. 



/ .9, 13. 1843; Mikrog. pi 14. f. 18. 1854. Kiitz. BacilL 105. pi 29. f. 16~-17. 



1844. Priteh. Hist. Infus. ed. 4. 913. 18GL 

 Slauroneis hninii Perty; Ileril). Diat, Auverg. 70. pi 3,j\ 22. 1893. 



Cleve leavi^K out tlu^ two lirst-named synonyn^s and eon8(M|aently credits the name 

 to Ehrenberg. I am dep^^ndent for the r(^ference upon the accuracy of Ehrenberg's 

 citation/^ but as il is about iinLA'ersally c^.mccxled to l>e corr(H't I quote the reference 

 to Nitzsch without having seen the t>riginal publication. • 



I do not favor placing StauroneiH gracUis Ehrenb. in this list. Ehrc^nberg's original 

 figures^ represent a diatom sharper, much smaller, and much more delicate. The 

 same is true of Smith's figiin^s,^ though this fails to agree with the Ehrenberg type 



because^ of its narrower stauros. 



The question of the union of Stiiuroneis with the present genus has been discussed 



under Navicula above. 



Found at station 2882, off On^gon. 



■ 



Navicula pingtiis Mann, sp. nov. Plate LIIIj figure 5- 



Valve broadj slightly narro\v(Ml at the center; ends blunt, center depressed; markings 

 of heavy ridges bearing large oval b<^ads, three to four, the out(T row being elongated 

 to the margin; a longitudinal hyaline area, through whicli runs the raping (xmnecting 

 the apices and bordered on (^ither side by a single row of large oval beads of the same 

 number as and continuous wnth the ridges. 



Length of valve, O.IGO mm.; width of valve, 0.070 mm. Striae, 28 in 0.1 mm. 



This species bears considerable resemblance to Grunow's figure of A^ suhdncta 

 Schmidt, ti and wore ^his identification correct I would not hositato to write this as a 



fl Ehrenb. Infus. 175. 1838. 



i>Phys. Abh. Akad. Wiss, BerL 1841: 38(). pi 1. IL f. 14, pi 2, L f. 17, 1843; 



icrog. pi 2, I.f. t. 1854. 



c W. Smith, Synop- Brit. Diat. 1: 59. p]. 19 J, 186. 1853, 



dDenkschr. Akad. Wieu 48-: 5(L pi I.f. 39. 1884. 



