On Microzoa, Sfc. By C. D. Sherbom & F. Chapman. 743 



Gaudryina D'Orbigny [1840]. 



Gaudryina puyoides D'Orbigny, plate XIV. fig. 7. D'Orbigny, 

 1840, Mem. Soc. Geol. France, iv. p. 44, plate iv. figs. 22-4. — 

 A small full-chambered variety of this typical form. Numerous ; 

 black clay. 



Bigenerina d'Orbigny [1826], 



Bigenerina capreolus (d'Orbigny), plate XIV. fig. 8. Vulvu- 

 lina capreolus d'Orbigny, 1826, Ann. Sci. Nat., vii. p. 264, No. 1, 

 pi. xi. figs. 5, 6 ; modeles, No. 39. — This variety has been well 

 figured by Brady in the ' Challenger ' Monograph, plate xlv. figs. 

 1-4, and figs. 3 and 4 of these correspond very closely to our 

 specimens. Unfortunately we have not met with a single individual 

 with the continuous upper chamber, although this form is one of 

 the most numerous in the collection. Very common, but small, in 

 both clays (and at Chelsea). 



Veeneuilina d'Orbigny [1840]. 



Verneuilina tricarinata d'Orbigny, plate XIV. fig. 9. 

 D'Orbigny, 1840, Mem. Soc. Geol. Fiance, iv. p. 39, plate iv. 

 figs. 3, 4. — A much worn example. Black clay. 



Clavulina d'Orbigny [1826]. 



Clavulina communis d'Orbigny, plate XV. fig. 1. D'Orbigny, 

 1826, Ann. Sci. Nat, vii. p. 268, No. 4.— This sandy form is 

 extremely common in our washings, but, with the single exception 

 of the figure, only fragments occur.* One at least of our specimens 

 has the triangular commencement mentioned by Brady as charac- 

 teristic of G. Parisiensis. Abundant in both clays. 



Sub-family Buliminin^b. 



Bulimina d'Orbigny [1826]. 



Bulimina affinis d'Orbigny, plate XVI. fig. 1. D'Orbigny, 

 1839, Foram. Cuba, p. 109, plate ii. figs. 25, 26. —A very small 

 but perfect example, corresponding with the one figured by Brady 

 in the ' Challenger ' Monograph, plate 1. fig. 14. Brown clay. 



Bolivina d'Orbigny [1839]. 



Bolivina punctata d'Orbigny, plate XIV. fig. 10a, b. D'Orbigny, 

 1843, Voy. Amer. Merid., p. 63, plate viii. figs. 10-12. — A very 

 small, rather flat and narrow form, minutely punctate all over; 

 often bent or wavy in the line of growth. Abundant in Doth 

 clays. 



* See also op. cit., iv. (1859) p. 350, Clavulina communis (and " Nodosaria 

 rustica " Jones). 



