324 CONTRIBUTIONS FROM TTTK NATIONAL HKBBAniUM. 



(lephyria incjirvata Arnott, Quart, Joiirn. Micr. Sci. 8: 20. 18()0. Pritfh. Hipt. Tiifns. 



ed. 4. 809. lA. -If. 50, JSGI. 11. L. Smith, Sp. Diat. Typ. no. 173. 1874. Gruiu 



in LVnzl, Reirie Xuvara Hot. 1: 8. JS70. 

 Achnanthes coslai us 3 ohnA. Quart. Jnuru. Miir. Sri. 8: 15. pi. I.f. Ij. I^(i(). Moeb. 



Diat. -hi 1. pi z7.f. 14. 1890. 

 EntopylaincurrataGnin. Verh. Zonl. Hot. Gos. Wion 12: 428. ]8(>2. Do Toni, Syll. 



Alg. 2: 77:^. 1892. 



EvIopyJa t'ohnii Grun. Vorli. Zonl. Hot. Ges. Wien 12: 429. 18fj2. Gruu. iu Fcuzl, 



Hoi^e Novara Bot. 1: 8. 1870. 

 Martjaritoxicon cohnii Jan. Ablu Sclil. Gi^s. Valcn-L Cult* 1862"'; G. 1862, as synonym. 

 Geplujrla gigantea Grev. Trans. Mirr. Soc. Loud. n. s. 14: 122. j)?, i/./ 7-^. 1800. 



Mod). Diut.-taf. pi lA.f. IS. IS90. (^astr. R('p. Voy. Chall. Hot. 2: 42. pi 15. 



/. /(?. 18SG. Wnlle, Diat. N. h.ph VA.J. 1-2. 1890. DeToni, Syll. Alg. 2: 775. 1892. 

 (jcp/^z/nrf ro?7.s/adaGrev. Trans. Micr. S(K'. Ij(md. n. s. 14: 77. pL S.f. 2. 18(>(). Mool). 



Diat.-laf. pi 72./. 2. Do Toni, Syll. Alg. 2:775.1892. Wollc, Diat. N. A. 



pi Gl.J. S. 1890. 



Entopyhi hangarica Pant. liritr. liacill. Ung. 2: G7. pi 4^f* 58. 1880. 



Thorr is a possiljility of qu(\stioning t lu^ lust synonym^ i\s the diagnosis is mit thorough 

 and the figure is plainly very carclossly drawn. I do not think the doubt is strung 

 enough to warrant this form receiving separate rank. 



Found at stations 3G07, 402911, Bering Sea. 



GEPHYRIA Arnott. 



Gephyiia Arnott, Quart. Journ. Mier. Sei. 8: 20. 1800. Char, emend. Sc]inii<lt, 



Ail-d^pl^SL 1902. Rabh. Fl. Eur. Alg. 1: p. 308. 18G4. Grun. Verh. Zool. 



Bot. Ges. Wien 12: 429, 18G2. De Toni, Syll. Alg. 2: 775. 1892. Pritdi, 



Hist. Tnfus. ed.4. 809. 1861. IL L. Smith. Sp. Diat. Typ. no. (562. 1874. Griff. 



& Hcnf. Micr. Diet. ed. 3. 340. 1875. Van lleur. Treat. Diat. 340. /. 98. 1890. 



Truan & Witt, Diat. Ilayti 10. pi 4-f. 14~17. 1880. 

 Euplcuria Arn. in part; Moll, type no. 21. 

 Admanllics Bory in part; Johnst. Quart. Journ. Micr. Sci. 8; 14. pi I.f. IJa^ &,/. 



1860. 

 Erifopyla FAiViinh, in part; Grev. Trans. Micr. Soc. Lond. n. s. 14; 122. pi 11./. 7-8, 



ISGG. 



For the marks of distinction between tliis and the close genus, Entopyla Ehrenh., 

 see under the latter. 



Gephyria media Arnott, Quait. Journ. Micr. Sci. 8: 20. 18G0. Pritch. Hist. Infus. 

 od. 4. 809. pi 4-/. 4'J^ 18G1. Grun. Verh. Zool. Bot. Ges. Wien 12: 429. 1SG2. 

 Truan & Witt, Djat. Ilayti IG. pi 4-/. 14-17. 1880. Lo Diatomiste 2x pi 19. 

 /. 8. 1894. II. L, Smith, Sp. Diat. Typ. no. GG2. 1874. De Toni, Syll. Alg. 2: 

 775. 1892. Van Hour. Treat. Diat. 340./. 98. 1S9G. Wolle, Diat. N. A. pi 01./. 

 4-0, 1890. Sclimidt, Atlas pi 231./. 18-21, pi 232,/, 1-22, 

 Enpteiina wedia Xfoll, type no. 21. 

 Achnantcs angustatn Johnst. Quart. Journ. Micr. Sci. 8: 14. j)l 1 , /, ISa, 6,/. 18G0. 



Though Johnstcm^s specific name j>rocedes that of Arnott, it had been preempted 

 by Greville for an entirely (lifferent dialom.'^ The genus Gephyria, not having l>eon 

 constituted, Johnston rightly placed his speeies in Achnanthes; for it should be 

 noted the two gen<Ta are, togothtM' willi Thitopyla, (piito similar in struettnx^ and in 

 mode of growth. The specimen ftumd by me is the short and robust variety called 

 forma vdoccna.^ 



Found at stations 292011, i5(>9S, Hawaiian Islands and off Honshu Island, Japan. 



« Quart. Journ. Micr. Sci. 7: 163. pi 8J. 9. 1859. 

 ^ Le Diatomiste, 2: pi 19,/ 8, 1894. 



