NOTES ON RETICULARIAN RHIZOPODA. 63 
with a general aperture in a delicate transparent ecto- 
solenian neck, and a cellular shell-wall like Ovulites, 
each chamberlet provided with an external orifice. 
Noposaria, Lamarck. 
Nodosaria intercellularis, nov.—Test arcuate (Dentaline), 
inferior extremity usually mucronate, composed of 
about six segments, the earlier of which are sub-cylin- 
drical, or only slightly inflated, the later ones ellip- 
tical or pyriform. Surface-ornament of the earlier 
segments. consisting of longitudinal coste; the later 
chambers marked by lines of closely set perforations 
which communicate with chamberlets formed in the 
furrows between the ribs. ‘The structure of the later 
segments closely resembles that of Lagena Hertwigiana. 
Neck long, with annular or spiral raised ornament and 
phialine or cleft lip. Length, -4; inch (1°6 mm.). 
NV. abyssorum, nov.—Test stout, thick-shelled,nearly straight, 
often irregularly built. Segments about five in num- 
ber, subglobose, somewhat irregular in shape and size ; 
primordial chamber, which is usually the largest, fur- 
nished at its base with a number of short stout spines ; 
neck short and broad, with large phialine lip. Length, 
+ inch (2°8 mm.). 
VaGINULINA, d’Orbigny. 
Vaginulina spinigera, nov.—General form that of short, 
broad, somewhat tapering specimens of V. leguwmen, but 
furnished at the base with two (rarely three or more) 
long stout spines, one of which is usually continuous 
with the main axis of the shell, the others radiating at 
various angles. Length of the body of the shell, inch 
(3°5 mm.), the spines often two thirds as much, or even 
occasionally as long as the shell itself. 
Mr. Whiteaves has accurately described this form,! but 
beyond alluding to it as a species of Marginulina, has not 
given ita name. In one of the dredging lists published by 
the late Dr. M. Sars, the name Marginulina spinosa occurs, 
but without any description or other indication of characters, 
and it is difficult now to say what was intended. So far 
as the distinction between Vaginulina and Marginulina is 
of any value, the species appears to belong to the former 
rather than the latter genus; and as the want of a recog- 
nised name for it has been a source of some inconvenience, 
1 © Report Brit. Assoc.,’ 1872 ; ‘Trans. Sections,’ p. 144. 
2 ¢Vidensk.-Selsk. Forhandlinger’ for 1868, p. 248. 
