— 217 — 



13. C. I i is eat il m (Ehbg.) Cleve, Plankton collected by the Swedish 

 Expedition to Spitzbergen in 1898, Kgl. Sv. Vet.-Ak. Handl. Bd. 32, No. 3, 

 1899, p. 36; Peridinium Uneatum Ehrenbg. 



Sparingly with the preceding species. 



Area: Atlantic, Mediterranean, Red Sea, Indian Ocean, Bering Sea. 



var. longiseta Ostenfeld & Schmidt, Plankton fra det Rode Hav og 

 Adenbugten, Vidensk. Meddel. Naturhist. For. Kjobenhavn, 1901, p. 163, 

 fig. 12. 



This variety sometimes occurs in short chains (2 specimens together) ; 

 then only the free specimen has a long superior horn. 



2 (it) - 3 (rr) - 4 (+) - 5 (it) - (3 (r). 

 Area: Red Sea, Indian Ocean. 



var. robust a Cleve , Plankton from the Southern Atlantic and the 

 Southern Indian Ocean, Öfv. af Kongl. Sv. Vet.-Ak. Förh. Nr. 8, p. 925, 

 fig. 6, 1900. 



4 (rr). 



Area: Southern Indian Ocean. 



14. C. candelabrum Ehbg.; Stein, I.e. Pl. XVI, f. 15, 16. 

 2 (rr) - 4 (rr) - 7 (rr). 



Area: Warm Atlantic, Mediterranean, Red Sea, Indian Ocean. 



15. C. fusus (Ehbg.) Dujardin 1. c. 



1 (rr) - 2 (r) - 3 (r) - 6 (r) - 7 (r) - 10 (r). 



Area: Atlantic. Mediterranean, Red Sea, Indian Ocean, Pacific. 



var. extensum Gourret, Annal, du Musée d'hist. nat. de Marseille, 

 zool., vol. I, n° 8, p. 52, Pl. 4, f. 56. 



2 (rr) — 3 (rr). 



Area: Warm Atlantic, Mediterranean, Red Sea, Indian Ocean, Pacific. 



Gonyaulax Diesing. 



16. G. polygraimiia Stein, I.e. Pl. IV, f. 15. 



2 (rr) - 4 (+) -■ 5 (r) - 6 (+) - 7 (r). 

 Area: General in warm and temperate Seas. 



17. G. spinifera (Clap. & Lachm.) Stein, I.e. Pl. IV, f. 10-12. 



2 (rr) - 3 (r) - 6 (+). 

 Area: Atlantic, Mediterranean. 



18. G. hyalina Ostf. & Schm., I.e. p. 172, f. 24. 



4 (r) - 5 (r) - 6 (r). 

 Area: Indian Ocean. 



