GOES: FORAMINIFERA. Sl 
constructed 21-3-whorled spire, with 5-6-7 segments in the outer one. The 
test is sometimes rough with sand grains and of a grayish hue, but sometimes 
polished and of a brown or reddish color, It is more inflated and larger than 
H. nanum Br. (Chall. Rep., Pl. XXXV. Figs. 6-8), but in all other respects 
of the same build. The umbilicus is sometimes deep, but generally very 
narrow, sometimes wanting. Attains a diameter of 1.5 mm. 
Fig. 10, aboral side; Fig. 11, marginal-oral side ; Fig. 12, with irregular 
spire, approaching H. turbinatum ; Fig. 13, umbilical side. 
Pacific. 885-1879 fathoms ; a few starved specimens, 
Caribbean Sea. 380-1630 fathoms; scarce, but well developed specimens. 
H. obsoletum, n. 
Plate III. Figs. 14-16. 
2 H. turbinatum EGGEr, 1893, Exp. Gazelle, Bayr. Ak. Wiss., XVIII. p. 262, Pl. V. 
Figs. 57-59. 
This may be considered as intermediate between the preceding and H. lati- 
dorsatum, The sutures nearly obsolete; the segments are not inflated, but the 
contours thick, the rounded margin without incisions, the aperture sometimes 
situated above the marginal suture on the obliquely set septum ; umbilicus 
usually obsolete. The outer whorl 6-chambered ; color pale yellow; surface 
sometimes smooth, sometimes rough. Diameter, 1-2 mm. 
Fig. 14, marginal-oral side; Fig. 15, spiral side; Fig. 16, umbilical view. 
Caribbean Sea. 382-1630 fathoms; scarce. 
H. fontinense (Trerq.) BRADY. 
IT. fontinense (Terquem), BR., 1884, Chall. Rep., IX. p. 305, Pl. XXXIV. Figs. 1-4. 
This large and flat form has been met with at three stations only in the 
Pacific. Younger ones are hardly distinguishable from ZZ, compressum Goiis. 
Pacific. 660-995 fathoms ; not plenty. 
Arren Form: 一 
H. compressum Goiis. 
Lituolina irregularis var. compressa Gois, 1882, Ret. Rhizop. Carib, Sea, Sv. 
Vet. Ak. Hdl., XIX. 4, p. 141, Pl. XII. Figs. 421-423, 
H. emaciatum BR., 1884, Chall. Rep., IX., p. 305, Pl. XXXIII. Figs. 26-28. 
To be considered a pygmy variety of 77. fontinense Br. Full grown 
specimens have also the aperture situated on the top of the septal wall; 
but in those which have not yet put on the Nodosaria stage it is margini- 
sutural, It has often a brown or brick color. 
Caribbean Sea. 196-463 fathoms; not common, 
