— a7 — 
13. €. linmeatum (Ehbg.) Cleve, Plankton collected by the Swedish 
Expedition to Spitzbergen in 1898, Kgl. Sv. Vet.-Ak. Handl. Bd. 32, No. 3, 
1899, p.36; Peridininm lineatum Ehrenbg. 
Sparingly with the preceding species. 
Area: Atlantic, Mediterranean, Red Sea, Indian Ocean, Bering Sea. 
var. longiseta Ostenfeld & Schmidt, Plankton fra det Rede 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. 
Q (rr) — 3(rr) — 4(+) — 5(r) — 6(7). 
Area: Red Sea, Indian Ocean. 
var. robusta Cleve, Plankton from the Southern Atlantic and the 
Southern Indian Ocean, Ofv. af Kongl. Sv. Vet.-Ak. Férh. Nr. 8, p. 925, 
fig. 6, 1900. 
4 (rr). 
Area: Southern Indian Ocean. 
14. ©. candelabrum Ehbg.; Stein, 1. c. Pl. XVI, f. 15, 16. 
2(rr) — 4(rr) — 7 (rr). 
Area: Warm Atlantic, Mediterranean, Red Sea, Indian Ocean. 
15. ©. fusus (Ehbg.) Dujardin 1]. c. 
1 (zr) — 2(r) — 3(x) -- 6(r) — 7(x) — 1002). 
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. 
9 (rr) — 3 (rr). 
Area: Warm Atlantic, Mediterranean, Red Sea, Indian Ocean, Pacific. 
Gonyaulax Diesing. 
16. G. polygramma Stein, 1.c. PI.IV, f. 15. 
2 (rr) — 4(+) — 5() — 6(4) -- 70). 
Area: General in warm and temperate Seas. 
17. G. spinifera (Clap. & Lachm.) Stein, 1.c. PL IV, f. 10—12. 
A (rr) — 3(r) — 6 (+). 
Area: Atlantic, Mediterranean. 
18. @. hyalina Ostf. & Schm., l.c. p. 172, f. 24. 
4(r) — 5(r) — 6(2). 
Area: Indian Ocean. 
