iJ5 



ti (r) - 3 (c) - 5 (n-) - 6 (it) - 7 (rr). 

 Area: Atlantic Ocean at 1(J° N. 53° W., Gulf of Bengal, 

 Malay Archipelago, China Sea. 



Biddulphia Gray. 



69. B. cbinensis Grev., Trans. Microsc. Soc. ISGG, 

 p. 81, PI. 9, f. IG; Lcudiiger-Fortmorel, 1. c. p. 39; Gleve, 

 Dial. f. the Sea of Java 1873, p. 6; Ostenfeld & Schmidt, 

 Pi. f. the Red Sea, etc. p. 152, f . 6 ; A. Schmidt, Atlas der 

 Diat. Kmide PI. 122, f. 22-24. 



I have given figures of this species and of the following 

 showing the different direction of the processes and the 

 spines. 



3(+) - 5(rr) - 10 (rr). 



Area: Red Sea, Malay Archipelago, South China Sea. 



70. B. mobilensis Bail., Am. Journ. Sc. 1845, p. 33G, 

 PI. 4, f. 24; Van Heurck, Synopsis PI. 101, f. 4, PI. 103, 

 f. A ; Gleve, Atlant. Plankt, Organisms, p. 288 ; Schroder, 

 Neapel p. 30; B. Ba'deijl Smith, Brit. Diat. II, p. 50, 

 PL 45, f. 322, PI. 62, f. 322; Leuduger-Fortmorel, 1. c. 

 p. 38; Denticella viohiliensis Grun., de Wildeman, 1. c. 

 p. 127. 



;i (r) - 3 (rr) — 4 (rr) — 5 (rr) — 6 (rr). 



Area: Along the Coasts of West-Europe and North- 

 America, Mediterranean, Indian Ocean, Malay Archipelago, 

 Pacific Ocean. Neritic species. 



Cerataulina Perag. 



71. C. Bergonii Perag., Monogr. du genre Rhizoso- 

 lenia, Le Diatomiste vol. I, p. 103, PI. 1, f. 15, 16; Schro- 

 der, Neapel p. 30 (var. elongata) ; Gleve, Bih. t. Sv. Vet. 

 Akad. Handl. Bd. 20, 3, 1894, No. 2, p. 11, PI. 1, f. 6; 

 Atl. Plankt. Organisms p. 288, Pi. f. the Red Sea, p. 1032; 

 Ostenfeld & Schmidt, PI. f. the Red Sea, etc. p. 152; 

 Zi/goceros (?) i^elagicmn Gleve, Kanonbaaden „Hauch''s 

 Togter, Kjobenhavn (1889), p. 54. 

 .()(rr) — 10 (rr). 



Area: Tenipeiate N. Atlantic Ocean, Mediterranean, licil Sea, Gulf of Aden. 



Fig. '■![. 

 Biddali)hia 

 chinensis Grev. 

 (111). 



Fig. -2'2. 



Biddulphid 



inubiloisis Bail 



72. C. coinpacta Ostf. in Ostenfeld &, Schmidt, PI. f. the Red Sea, 

 1901, p. 153, f . 7 ; Bhizosolenia (GuinarcUa?) recta Cleve, PI. f. the Indian 

 Ocean and the Malay Archipelago 1902, p. 23 and p. 57, PI. VIII, f. 7 a, b. 



