48 FORAMINIFERA OF THE CRAG. 



Characters. — Shell more or less acutely ovate or subfusiforra, composed of short sub- 

 cylindrical chambers, few in number, and increasing rapidly in size with the growth of 

 the shell. Pseudopodial aperture at the summit of the terminal chamber, usually round, 

 but becoming more slit-like when the chambers become compressed. Surface smooth. 

 The striate variety is known as Gl. glans, D'Orb. Length about ^^th inch. 



Glandulina Icevigata is an interesting subtypical form of Nodosarina, distinguished 

 from Nodosarice proper by its short, sub'globular, fusiform shape. On the other hand, it is 

 frequently almost impossible to separate the Glanduline from the short Linguline varieties 

 of the type, which often differ in nothing save an inappreciable amount of flattening in the 

 shells of the latter. 



The specimens from Sutton in Mr. Searles Wood's collection are somewhat above the 

 average size ; and, from their number, Gl. Imvigata appears to have been a tolerably common 

 form in the beds examined by him. 



In comparison with the other NodosarintB, Glandulina is nowhere abundant in a 

 recent state. In the muddy bed of the Gulf of Suez at 30 to 40 fathoms, in the 

 Mediterranean at from 30 to 100 fathoms, off Shetland at about 70 fathoms, off the 

 Norwegian coast at a similar depth, and within the Arctic Circle at 160 fathoms, it is to 

 be found sparingly distributed. 



It is less rare in a fossil condition, though the examples are generally very small, and 

 may be met with in the Upper Triassic Clay of Chellaston, in many Liassic marls, in the 

 Oxford Clay of Leighton-Buzzard, the Kimmeridge Clay of Aylesbury, in the Chalk-mai'l 

 of the South-east of England, and in the Tertiaries of Europe, New Zealand, &c. 



Suhqenus— Nodosaria, Lamarck. 



Nautilus, Linne, Schroeter, Walker, Gmelin, Batsch, Turlon, Montagu, Maton and 

 Rachett, Pennant, Dillwyn, Wodarch, IF. Wood, &c. 



Oethoceras, Gualtieri, Martini, Batsch, Be Blainville, Hanley, &c. 



Orthoceba, Lamarch, Brookes, De Blainville, Crouch, Brown, Fleming, Thorpe, &c. 



Nodosaria, Lamarck, Def ranee, VOrbigny, Nilsson, Crouch, Brown, Sowerhy, Dujardin, 

 Hisinger, Roemer, Geinitz, Hanley, Ehrenberg, Michelotti, Hagenow, 

 Morris, Thorpe, Philippi, Reuss, Czjzek, Bronn, M'Coy, Bailey, Eichwald, 

 Bornemann, Schultze, Neuegeboren, Egger, Parker and Jones, Williamson, 

 Terquem, Costa, Karrer, Carpenter, Brady, Stache, &c. 



General characters. — Shell cylindrical, composed of several nearly equal segments, 

 arranged in a straight series ; either smooth or ornamented with ribs, granules, or spines ; 

 septal lines more or less depressed, making constrictions at right angles to the long axis 

 of the shell. Pseudopodial aperture simple, central, often pouting. 



