746 Transactions of the Society. 



with a truncated neck and slit-like aperture. In this last feature 

 it approaches Lingulina. One specimen (figured) from the black 

 clay ; not rare in the brown clay, but smaller and perhaps 

 immature. 



Nodosaria (Glandulina) obtusissima Reuss, plate XIV. fig. 21. 

 Site. k. Ak. Wiss. Wien, 1863, xlviii. p. 66, plate 8 fig. 92.— 

 Smooth and round, consisting of two (or three) chambers, the 

 upper much larger than the lower, and ending in a slightly conical 

 stellate aperture. Four specimens ; brown clay. 



Nodosaria {Glandulina) semicostata n. sp., plate XIV. fig. 22a, b. 

 —An apparently two-chambered, acorn-shaped form ; the upper 

 chamber is somewhat compressed and bilobed (slightly deformed ?) 

 on one side ; the lower chamber is round, bluntly acute, with delicate 

 longitudinal costae. Mouth, a circle of radiating fissures, slightly 

 produced. This specimen was, unfortunately, lost; but, careful 

 drawings having been made from it, we are enabled to include it in 

 our figures. One specimen ; black clay. 



Nodosaria humilis (Eoemer), plate XIV. fig. 23. Roemer, 

 1841, Verst. Norddeutsch. Kreide, p. 95, plate xv. fig. 6. — A short 

 3- to 4-chambered, glanduline-like form, common in the Chalk. A 

 good figure of this form is to be seen in Brady's ' Challenger ' 

 Monograph, plate Ixi. fig. 28, under the name of N radicula, of 

 which indeed humilis is zoologically a variety. One specimen ; 

 black clay. 



Nodosaria radicula (Linne), plate XIV. fig. 24. Naidilus 

 radicula Linne, 1767, Syst. Nat., 12th ed., p. 1164, 285 ; 1788, 

 ibid., 13th (Gmelin's) ed., i. p. 3373, plate vi, No. 18.— A uniform 

 or gradually increasing series of smooth chambers, spherical in 

 section. Rare and poor ; only found in the black clay. 



Nodosaria soluta (Reuss), plate XIV. figs. 25, 26. Dentalina 

 soluta Reuss, 1851, Zeitschr. d. geol. Ges., hi. p. 60, plate iii. 

 fig. 4. — Of our two figured examples, one (26) approximates very 

 closely to Reuss' original figure, and the other is comparable with 

 the variety figured by Von Hantken in Mitth. k. ung. geol. Anst., 

 1875, iv., plate iii. fig. 2. In Reuss' figure we find the chambers 

 to be apparently all of one size ; in Von Hantken's figure, on the 

 other hand, we are shown a series of four chambers, the last of which 

 is three times larger than the first. Our specimen of this form 

 has unfortunately only two chambers, and part of a third, but 

 otherwise the resemblance to Von Hantken's figure is perfect. In 

 1865 Reuss figured in his ' Kreide Kanara-See ' (Sitz. k. Ak. 

 Wiss., Iii. plate i. fig. 4), a form which he names N. ^rsegnans ; 

 and as this is almost the same as that figured by Von Hantken 

 as N. soluta Reuss, we presume Von Hantken did not see Reuss's 

 figure. Biologically we draw no distinction between any of these 

 forms, and are quite content to let the specimen under notice 



