FROM THE RED CRAG OF SUFFOLK. 221 



DESCRIPTION OF PLATE XXII. 



Fig. 1. Tusk of male Trichecus Huxley i from the Suffolk bone-bed at the base of the Red Crag, nat. 

 size. The specimen is preserved in the Ipswich Museum. 

 1 a. Transverse section of same, taken at base. 



1 b. Transverse section taken at the point. 



Fig. 2. Tusk of female Trichecus Huxleyi from the Suffolk bone-bed at the base of the Red Crag, nat. 

 size. The specimen is preserved in the Ipswich Museum. 



2 a. Transverse section at the base. 



2 b. „ „ about basal third. 



2 c. „ „ about distal third. 

 2d. ,, „ near the point. 



Fig. 3. Tusk of a very large male of Trichecus Huxleyi from the Suffolk Crag, nat. size. From a cast in 

 the British Museum : the specimen was formerly in the collection of Mr. Baker of Wood- 

 bridge, and is now in the York Museum, Reed collection. 



3 a. A transverse section near the base. 



Fig. 4. Point of probably a male tusk from the Crag, nat. size, remarkable for great lateral compression. 



Ipswich Museum. 

 Fig. 5. Old worn-down tusk from the Crag of Suffolk, nat. size. Ipswich Museum. 



5 a & 5 b. Transverse sections of base and apex of the same specimen. 



Fig. 6. Another worn-down tusk from the Suffolk Crag, also in the Ipswich Museum, nat. size. 



6 a. A transverse section near its point. 



Fig. 7. An incompletely grown tusk from the Suffolk Crag, nat. size. Ipswich Museum. 



7 a. Transverse section at its proximal end. 



Fig. 8. Transverse section of a male tusk of Trichecus rosmarus, 26A inches long, taken at 6 inches from 



the base. 

 Fig. 9. Same tusk as fig. 8, transverse section at 4 inches from the point. 

 Fig. 10. Transverse section of a young tusk of Trichecus rosmarus, 8 inches long, taken at 2| inches 



from the base. 

 Fig. 11. Transverse section of a male tusk of T. rosmarus, 21 inches long, taken at 5 inches from the base. 

 Fig. 12. Transverse section of an old worn tusk of Trichecus rosmarus, 10 inches long, and of conical 



form, taken at li inch from the point. 

 Fig. 13. Similar section at 4 inches from the point. 

 Fig. 14. Similar section at 6 inches from the point. 



SECOND SERIES. — ZOOLOGY, VOL. II. 30 



