190 



MB. F. B. BEDDARD ON EAETHWORMS 



[June 4, 



Fig. 



Fig. 



EXPLANATION OF THE PLATES. 

 Plate XVI. 



1. Skeleton of a small Udenodon, presumably U. gracilis. The parts in 

 outline are from the remains on the counter slab. X t%. 



Plate XVII. 



2. Ujaper view of skull of Udenodon gracilis. Nat. size. 



3. Side view of skull of Udenodon gracilis. Nat. size. 



4. Vertebra (probably lower thoracic) of Udenodon bainii. Nat. size. 



5. Posterior view of right hind-limb of Udenodon gracilis. Nat. size. 



6. Inner view of pelvic bones of right side of Udenodon gracilis. Nat. 



size. 



Plate XVIII. 



Fig. 7. Posterior or under side of right arm-bones of Udenodon gracilis. 

 Nat. size. 



8. Right clavicle of Udenodon gracilis. Nat. size. 



9. Sternum of Anomodont — believed to be Udenodon baini. Nat. size. 



10. Right shoulder-girdle of Udenodon baini. Nat. size. 



11. Right coracoid and precoracoid of Udenodon baini, from within. 



Nat. size. 



Reference Letters. 



ac. 



acetabulum. 



n., 



anterior nares. 



acr. 



acromion process. 



na.. 



nasal bone. 



c. 



centrale. 



ol., 



olecranon process. 



c.d., 



deltoid ridge. 



pb., 



pubis. 



c.e., 



external condyle. 



ph., 



phalanges. 



cl, 



clavicle. 



pi. 



pisiform. 



CO., 



coracoid. 



p.co,, 



precoracoid. 



./. 



femur. 



ra. 



radiale. 



fb., 



fibula. 



rd.. 



radius. 



fl. 



fibulare. 



r.f., 



frontal ridge. 



fr,i. 



femur. 



f-V-f., 



postfrontal ridge. 



fo., 



precoracoid foramen. 



So., 



scapula. 



f.ob.. 



obturatur foramen. 



Sp., 



neural spine. 



gi-^ 



glenoid facet. 



tb.. 



tibia. 



hu., 



humerus. 



tl, 



tibiale. 



i., 



intermedium. 



tr., 



transverse process. 



il. 



ilium. 



is., 



tarsalia (1 & 4-5). 



is. 



ischium. 



id., 



ulna. 



mt. 



metatarsals. 



un.. 



ulnare. 



4. On some Species of Earthworms of the Genus BenJiamia 

 from Tropical Africa. By Frank E. Beddard, F.R.S. &c. 



[Received May 20, 1901.] 



(Text-figures 12-19.) 



The genus Benliamia was originally instituted by Dr. Michaelsen^ 

 and withdrawn from Acanthodrilus, in which it had been formerly 

 included. Quite recently^ the same authority has proposed to drop 

 this generic name, and has placed the species which belong to it in 



^ JB. Hamb. wiss. Anst. vi. p. 6. 



^ Oligochseta in ' Das Tierreich,' 1900, p. 334. 



