no. 1603. FORAMINIFERA FROM THE HAWAIIAN ISLANDS—BAGG. 165 
NONIONINA UMBILICATULA (Montagu). 
Nautilus wmbilicus Montracu, Test. Britain, 1803, p. 191; Suppl., p. 78, pl. 
SQN, 1a, dh 
Nonionina umbilicatula may be regarded as occupying an inter- 
mediate position between WV. depressula and N. pompilioides. It is 
found at all depths from a few to over 3,000 fathoms. Its geograph- 
ical distribution is equally extensive. Its geological history com- 
mences with the Eocene. Occurs at Stations H. 4508 and H. 4555. 
Genus POLYSTOMELLA. 
POLYSTOMELLA MACELLA (Fichtel and Moll). 
Nautilus macellus FicHtEL and Morn, Test. Microse., 1803, p.~66, pl. x, 
figs. e-9g. 
A. compressed variety of the more abundant type Polystomella 
crispa. Chiefly in shallow, tropical waters, but it is the earliest 
known fossil belonging to the genus and occurs in the Middle Jura. 
Found at Stations D. 4000 and H. 4430. 
POLYSTOMELLA SUBNODOSA (Munster). 
Robulina subnodosa Munster (according to Roemer), Neues Jahrb., fur 
wtiiaere,, IBY}, TO) BO, jo, iar, ite, Ol, 
is Urs ; twice in t Thallenger dredgings, off Booby 
This occurs but twice in the Challenger dredging ff Booby 
Island, and southwest of Papua at from 6 to 28 fathoms. Rare at 
Station H. 4508. 
POLYSTOMELLA STRIATOPUNCTATA (Fichtel and Moll). 
Nautilus striatopunctata FicutTen and Moun, Test. Microsc., 1803, p. 61, 
pl. 1x, figs. a-e. 
One of the most abundant species of Polystomellw whether recent 
or fossil. Depth and range unlimited. [Fossil in the early Kocene. 
Found at Station D. 4174. 
Subfamily NUMMULITIN 44. 
EGiawlss AIMD Els hlaS J) = (E aN Ay 
AMPHISTEGINA LESSONII d’Orbigny. 
Amphistegina lessonii (part) D’ORBIGNy, Ann. Sci. Nat., VII, No. 3, 1826, 
p. 304, pl. xvii, figs. 1—4. 
The recent types of Amphistegina are very difficult to separate even 
in varieties on account of the great variation of form they exhibit. 
Professor Brady“ separates the species Amphistegina lessonii into 
three divisions, namely: (1) compressed lenticular form (= A. vul- 
garis Parker, Jones, and Brady), (2) thick variety, more often in- 
“Challenger Report, LX, p. 740. 
