188 
1 (mr) — 10 (rr). 
Area: Caribbean Sea, Red Sea and. Indian Ocean. 
13. C. ventricosa (Clap. & Lachm.) Fol, Sur la famille des Tin- 
tinnodea, Recueil -Z00l. Suisse, Tome 1, p. 59, Pl. 5, f. 12, 1884; 
Entz, Ueber Infusorien des Golfes von Neapel, Mitth. aus d. Zool, 
Stat. zu Neapel, Bd. 5, p: 413, Pl. XXIV, f. 24, 1884; Tintinnopsis 
ventricosa Daday, Monographie d. Fam. d. Tintinnodeen, ibid. Bd. 7, 
p. 559, Pl. 20, f. 19—20, 1887. 
The specimens observed agree very well with Entz's and v. 
Daday's figures 
1 (rr) — 2 (rr) — 6 (—) — 10 (7): 
Årea: Atlantic, North Sea, Western Baltic, White Sea, 
Mediterranean. 
Cyttarocylis Fol. 
14. C.reticulata Ostenfeld & Schmidt, Plankton fra det Røde 
Hav og Adenbugten, Vidensk. Meddel. Naturhist. Foren. Kjøben- 
havn, 1901. p. 180, f. 28. 
The Siamese specimens differed > from the form described and 
figured by Ostenfeld & Schmidt l.c. in being smaller; further 
the reticulation was less obvious. 
2 (rr) — 10 (rr). 
Area: Red Sea, Indian Ocean. 
15. C. poculum Ostenfeld & Schmidt 1. c. p. 179, f. 27. 
10 Gk 
Årea: Red Sea, Indian Ocean. 
16. C. spiralis (Fol) Ostenfeld & Schmidt 1. e., p. 180, f. 29; 
Tintinnus spiralis Fol, Contribution å la connaissance de la famille 
des Tintinnodea, Arch. d. Sci. Phys. Natur. Genéve, T. III, p. 21, 
Pl. I, f.4, 1881; Undella spiralis Daday, Monographie d. Fam. d. 
Tintinnodeen, p. 565, Pl. 18, f. 8, 1887. 
…… The specimens observed were somewhat narrowed below the 
mouth. 
