— 7 



Lauderia Cleve. 



15. L. annulata Cleve, Dial. f. the Sea of Java 1873, p. 8, PI. 1 , f. 7 ; 



Peragallo, Monogr. do Genre Rhizosolenia (Le Diatomisle Vol. 1, 1892), 

 p. 105, PI. 1, fig. 11 ; Castr., Challenger p. 89, PL Vlll, f. 7; Ostenfeld & 

 Schmidt, PL from the Red Sea, etc. p. 158; Leuduger-Fortmorel, 1. c. 

 p. 47; Gran, Nyt Magaz. Naturv. Kristiania, 1900, p. 109, PL IX, f. 1—4; 

 Cleve, PL f. the Indian Ocean and the Malay Archip. p. 21 ; non Cleve, 

 Phytoplankton PL II, fig. 13-15. 



1 (rr) — 3 (+) - 4 (rr) — G (rr) — 10 (r). 



Area: Red Sea, Gulf of Bengal, Malay Archipelago, Antarctic Ocean. 



Detonula (Sciiiitt) Gran. 



16. D. delicatula (Perag.) Gran, Nyt Magaz. Naturv. 1900, p. 112; 

 Lauderia delicatula Perag., Monogr. Rhiz. p. 105, PL 1, f. 13; Cleve, 

 Phytoplankton, p. 24, PL 2, f. 21; Schroder, Neapel p. 23, PLl, f. 9 a, b; 

 Ostenfeld & Schmidt, PL f. the Red Sea, etc. p. 157. 



A species of Detonula which I refer with some hesitation to D. 

 delicatula, has been found in some of the samples. 



1 (rr) — 6 (rrj - 10 (rr). 



Area: Tropical Atlantic Ocean, Mediterranean, Red Sea(?). 



17. D. Moseleyana (Castr.) Gran, Nyt Magaz. Naturv. 1900, p. 113; 

 Ostenfeld & Schmidt, Plankt. from the Red Sea, etc. p. 157; Lauderia? 

 Moseleyana Castr., Challenger Report, p. 90, PL 24, f. 9; Monogr. Rhiz., 

 p. 105, PL 1, f. 10. 



2 (rr) - 3 (rr). 



Area: Red Sea, Arafura Sea. 



Leptocylindrus Cleve. 



18. L. danicus Cleve, Kanonbaaden „Hauch''s Togter, Kjobenhavn, 

 p. 54 (1879); Bih. t. Sv. Vet. Akad. HandL XX, 3, No. 2, p. 15, PL 2, 

 f. 4, 5; Schroder, Neapel, p. 25; Cleve, PL f. the Red Sea, p. 1033; PL 

 f. the Indian Ocean and the Malay Archip. p. 21 ; Atl. Plankt. Organisms 

 p. 332. 



n(iT) - 10 (rr). 



Area: Eastern temperate Atlantic Ocean from Faeroes and Norway south- 

 wards to Spain, Mediterranean, Red Sea, Malay Archipelago. 



Dactyliosolen Castr. 



19. B. antarcticus Castr., Challenger Report p. 75, PL 9, f. 7; Pera- 

 gallo, Monogr. Rhiz. p. 104, PL 1, fig. 7; Cleve, Atl. Plankt. Organisms 



