sr r,-<>iu>KK i: 



PLATYPODA 



Tin- typical genus /////!. Lmi. .>'////. Mavn- , Kig. 989), 

 to tin- present time. 



> HufjHipaiK, Mayer (Cryptochorili, M'i--li . 



Kit:. 1)90). Elongate-oval ; spire short, body 



whoi-1 large, smooth, lustrous. Apcrimv 



with sliort recurved canal; inner lip callous. 



Common in the Eocene. 



Family 9. Olividae. d'Orbigny. 



Shell elongate-oval to sub-cylindrical, solid, 

 smooth, and glistening. Spire short; body 

 whorl very large. Aperture narrow ; outer 

 lip sharp; columella anteriorly with <u> out- 

 wardly reflected callus. Canal very short. 

 Cretaceous to Recent. 



//(';>" iiiutica, Lam. 

 ('all-aim Grossier; 

 Grignon. 



Fi.:. '.".'O. 

 Iliii'jii>.-i.i .*t i 



Lam. sp. Calcaire 

 Grossier; Da in cry, 

 near Epernay. 



FIG. 991. 



Oliva cfofvta, Lam. 

 Miocene ; Dax, near 



cene ; Steinabrunn. 



Oliva, Brug. (Fig. 991). Shell sub- 

 cylindrical ; suture line marked by a deep groove. Columellar callus obliquely folded. 



Cretaceous to Recent. 



Ancilla, Lam. (Ancillaria, Lam.), (Fig. 992). 

 Shell oblong, occasionally acuminate. Suture 

 usually covered over by a lustrous enamel -like 

 callus. Aperture somewhat broadened anteriorly ; 

 columellar callus slightly twisted. Cretaceous to 

 Recent. 



Superfamily 5. TOXOGLOSSA. Troschel. 



Radula typically with only two arrow-shaped 

 teeth in each transverse row, although occasionally 

 as man y as five teeth are developed. Shell similar 

 t that of the Rachiglossa. 



This group is closely allied to the Rachiglossa, from which it probably became 

 differentiated in the Cretaceous. The Tertiary and 

 Recent species are excessively profuse. All are 

 carnivorous and marine. 



Family 1. Cancellariidae. Adams. 



Shell oval to turreted. Spire acuminate; body 

 whorl inflated ; surface transversely ribbed and in most 

 cases cancellated. Aperture with short canal or notch ; 

 columella with several strong oblique folds, outer lip 

 grooved internally. Upper Cretaceous to Recent. 



The typical genus Oancellaria (Fig. 993) attains 

 a maximum distribution in the late Tertiary and 

 Recent. 



Family 2. Terebridae. Adams. 



FIG. 993. 



CanceUnrtu con- 

 irlliifii, Linn. Min- 

 ct'iio ; (Jainfahrn, 

 near Vienna. 



lerebra iii'iuni imtii , 



Borson. Miocene; 

 near Vienna.' 



Shell turreted, slender, acuminate, with small body whorl. Avert nn- 



7 j-7^7 77 7 - i 



ova ^ or quadrilateral; canal short, curved; outer hp sharp. Oper- 

 culum horny. Tertiary and Recent. 



Of the two leading genera, Terebra, Lam. (Fig. 994), and Acus, Humphr., the tii>t 



VOL. I Or 



