Goks. — Foraminifera. 
PLATE IV. 
Figs. 1-3. Hormosina ovicula Br. 3.60-4.80 mm. 
Fig. 4. Clavulina rudis Costa, ovoid form. 2.86 mm., oral face with the val- 
vular aperture. 
Fig. 5. € es side view. 
Figs. 6-8. “ a 5° valvular apertures of different shape. 
Figs. 9,10. Clavulina communis, v. levigata, from Caribbean Sea. 1.30-1.50 mm. 
Figs. 11-14. different arrangement of aperture of oral side. 
Fig. 16. ee - transverse section of the biserial larval stage. 
Fig. 16, 24. Clavulina cocena Gimp. 2.30 mm. 
Figs. 17-21. Ss “oral sides with different shapes of the aperture. 
Fig. 22. es «« ~~ longitudinal section. 
Fig. 23. sé “transverse section of a segment showing traces of 
subdivisional septa. 
Fig. 25. < «same section of the larval stage quadriserialis. 
Figs. 26, 36,37. Clavulina parisiensis, textularioidea Goés, three full grown samples 
from Caribbean Sea. 
Fig. 27. oe “ « longitudinal lateral section. 
Figs. 28, 29. 6 as ss marginal view of the compressed 
larval stage. 
Figs. 30-35. a * a oral side with different shapes 
of aperture. 
Fig. 3 “ «“ « section of a younger sample. 
Fig. 39. Clavulina Soldanii Park. & Jones, pygmy species. 2.40 mm. 
Fic. 40. “ « ‘e aperture. 
Fig. 41, £ “ 3 longitudinal section. 
Fig. 42. “ “ <e transverse section of the mature stage. 
Fig. 43. SF us Ke transverse section of the larval stage. 
Fig. 44. « «& “ very extenuated sample. 
Fig 45, se ie apertural face with simplified aper- 
ture. 
Fig. 46. ‘ ss transverse cut of its last segment. 
