189 
2 (rr) — 3 (rr) — 4 (r) — 5 (rr) — 6 (r) — 10 (rr). 
Area: Warrn Atlantic, Mediterranean, Red Sea, Indian Ocean’ 
17. C. Hebe Cleve, Some Atlantic Tintinnodea, Ofv. af Kgl. 
Sv. Vet.-Ak. Fork. Nr. 10, p. 971, figure, 1899; Oste nfe ld & 
Schmidt 1. c., p. 179, f. 26. 
In the Gulf of Siam tkere occurs a small, kyaline form of this 
species, whick differs from the preceding species in wanting the hig 
puncta between the ribs. 
2 (rr) — 4 (rr) — 5 (rr) — 6 (r). 
Area (of type): Tropical Atlantic (northern limit 48° N. 
26°—30° W., Southern limit 26° S. 45° W.), Red Sea, Indian 
Ocean, 
18. C. simplex Cleve 1. c. p. 972, figure. 
2 (rr) — 10 (rr). 
Area: Tropical Atlantic, Red Sea, Indian Ocean. 
19. C. ventricosa Schrn. n. sp. 
House broadly-campanulate, ventricous , with 
slightly acuminate, not prolonged apical end , 
nearly as long as broad; moutli a little constric- 
ted , with a few transversal rings. Wall thin, 
with few fabout 7 — 8) longitudinal ribs. 
Length 52 g. 
Breadtli 42 g. 
Diameter of mouth 34 g. 
This delicate species of wkich I have only 
seen a single specimen seems to be nearest to Cytt. simplex Cleve, 
from whick it is easily distinguished by its ventricosity. 
6 (rr). 
Cyttarocylis ven¬ 
tricosa Schm. 
Seibert Oc. I, Obj. Y. 
20. U. azorica Cleve, Some Atlantic Tintinnodea, Ofv. af Kgl. 
Sv. Vet.-Ak. Forli., Nr. 10, p. 974, figure, 1899. 
2 (r). 
Area: Azores. 
