121 973 
29. '. eireulare Grun. forma IV—appendiculata V.H. Syn. tab. CVIII, 
fig. 10. 
K Kt (3 samples). 
Area: Barbadoes. 
30. 1. dubinm Bright. A.5. Atl. tab. LXXVIII, figs. 34—35. 
KCn, KKt, K Mn—CLt (22 samples). 
Area: Campeachy Bay, Madagascar, Algoa Bay, Malay Archipelago, Sand- 
wich Islands. 
31. T. orbiculatam Shad. Jan & Rabh. Hond. tab, Il, fig. 5. 
Only found in a sample without habitat. 
Area: Honduras, Port Natal, Malay Archipelago. 
32. T. punctatum Bright. forma trigona minuta V.H. Syn. tab. CIX, 
fig. 10. 
KKt (3 samples). 
Area: Seychelles. 
33. T. scitulum Bright. A.S. Atl. tab. LXXXII, fig. 11. 
KKm, KMn—CLt (2 samples). 
Area: Gulf of Mexico, Campeachy Bay, Malay Archipelago. 
— — forma qvadrata A.S. Atl. tab. LXXXIV, figs 5—6. 
KKm (2 samples). 
Area: CGampeachy Bay ; Singapore. 
34. 7. Shadboltianum Grev. A.S. Atl. tab. LXXX, figs. 18—19. 
Found only in a sample from K Kt. 
Area: Samoa, Tahiti. 
This species is (Ind. Oc. & Malay Archip. p. 32) referred by Cleve 
to Trie. orbiculatum Shadb. 
35. J. (Amphitetras) parvulum Jan. & Rabh. Jan & Rabh. Hond. 
tab. I, fig. 4. 
KKt (2 samples). 
Area: Honduras. 
36. Triceratium sp. Tab. nostr. I, fig. 4. 
Triangular with a single prominent central spine. Distance 
between the angles 0,047 mm., striee counted along the margin 14 
in 0,01 mm. radiated and composed of puncta. 
Solitary in a sample labelled: ,Off Tung Kaben‘. 
18 
