708 MR. E. CHAPMAN ON THE BARGATE BEDS OF SURREY. [Nov. 1 894, 



age in North Germany, from the Gault, and other later Cretaceous 

 deposits. 



One fragmentary specimen from Pebble-beds, Halfpenny Lane, 

 below St. Martha's Chapel, Chil worth. 



Lingulina, d'Orbigny. 



62. Lingulina carinata, d'Orbigny. 



L. carinata, d'Orbigny, Ann. Sci. Nat. vol. vii. (1826) p. 257, 

 no. 1 : Modele no. 26. 



This species has been recorded from various fossiliferous deposits, 

 including the Lias, and many Cretaceous and Tertiary beds. 



The form figured from the Red Chalk of Hunstanton 1 appears to 

 be a variety intermediate between L. carinata, d'Orbigny, and 

 L. nodosaria, Eeuss, and would therefore be represented by the form 

 L. bohemica, Eeuss. 



L. carinata from the Bargate series resembles the figures of recent 

 specimens in that they have a short and rather broad (ovate) test, 

 tending to become acuminate at the aboral end, with sharp sides, 

 and low and numerous chambers. 



Three specimens from the Pebble-beds, Littleton. 



63. Lingulina semiornata, Reuss. 



L. semiornata, Reuss, Sitzungsb. Akad. Wissensch. Wien, vol. xlvi. 

 (1862) p. 91, pi. xii. fig. 11. 



The above species was described by Reuss from the Folkestone 

 Gault, and it is well distributed through that formation ; moreover, 

 it appears to be almost entirely restricted to those beds, since its 

 only occurrence out of the Gault (besides the present record), so far 

 as I am aware, has been noticed by myself, whilst examining some 

 Chalk-marl from East "Wear Bay, Folkestone, for a comparative study 

 of the Cretaceous rhizopoda. The specimens from the Bargate 

 series are slightly worn on their surfaces, but the semistriate 

 character of the test is distinctly seen when moistened. 



Two specimens from the Pebble-beds, Littleton. 



64. Lingulina semiornata, Reuss, var. crassa, nov. (PI. XXXIV. 

 fig. 8 a, b.) 



Associated with the specimens of L. semiornata from the Bargate 

 Pebble-bed, was a Lingulina singularly distinct from the typical 

 form with a fragile and slender test, since it possesses a heavily- 

 made test, and much broader than that of the type form. The 

 semistriate character is also present in this example. The length 

 of the test is ^L- inch (075 mm.), the breadth ^L- inch (0-3 mm.) 



One specimen from the Pebble-beds, Littleton. 



1 Burrows, Sherborn, & Bailey, Journ. Eoy. Micr. Soc. 1890, p. 558, pi. x. 

 fig. 3a, b. 



