9O One TJwusand Objects 



701. CONE TEXTULARIA (Textularia turns). This is 

 the most compact and regular of the fossil Textularias, 

 having an elongated conical form, and may be obtained 

 from chalk-washings. (PJ. IX., fig. 4.) 



702. STRIATED TEXTULARIA (Textularia striata). As 

 its name indicates, this species has a striated surface. 

 The double row of confluent, nearly globose chambers 

 are gradually attenuated towards the apex. It is from 

 Gravesend chalk. (PI. IX., fig. 6.) 



703. LONG-CHAMBERED TEXTULARIA {Textularia aricu- 

 lata}. This singular and characteristic Textularia is found 

 in the chalk of Brighton. (PI. IX., fig. 13.) 



704. ROUGH TEXTULARIA (Textularia asfera\T\\z 

 arrangement and general appearance of this species re- 

 sembles the Striated Textularia ; but, instead of being striate, 

 the surface is rough and granular. Found at Brighton. 



705. PERFORATED TEXTULARIA (Textularia perforata). 

 This species has more of the Nautilus form than the 

 rest, and occurs in Gravesend chalk. 



706. CHALK GLOBIGERINA (GloUgerina cretacea) is a 

 very interesting shell, closely allied to species found living 

 at the present day, and is not uncommon in Sussex chalk. 

 (PL IX., fig. 5.) 



707. Another species, named Globigerinaelevata^iQMn^. 

 in the chalk of Kent. 



708. GLOBOSE ROTALIA (Rotalia globulosd), Several 

 species of Rotalia are found in the chalk; and this, which 

 consists of a spiral of globose chambers, is one of them. 

 In was first detected by Professor Ehrenberg, in the year 

 1838. (PL IX, fig. 7.) 



709. CORDIER'S ROTALIA (Rotalia Cordieriana) has a 

 Nautilus form in one view, though when seen edgewise it 

 is very different (fig. 9 A). Indeed, a correct estimate of 

 the form of the Foraminifera can hardly be formed from 

 seeing them only in one position. (PL IX., fig. 9.) 



710. LOBED ROTALIA (Rotalia Voltziana). Another 

 coil shell of the chalk, for which we must refer to the 

 figure. (PL IX., fig. n.) 



711. SWOLLEN ROTALIA (Rotalia turgida). Common 



