1900.] MR. F. E. BEBDAR.D OK BASSARICTON ALLENI. 671 



muscle appears to be inserted on to the end of the radius. It was 

 inserted accurately into the middle of that bone in Bassaricyon. 



The Flexor carpi radialis did not seem to be inserted on to a 

 metacarpal but on to the radial carpal. 



The Flexor carpi ulnaris is single-headed and is inserted on to 

 the pisiform. 



The Palmaris longus is a thin muscle associated with the last 

 and overlapping the flexor sublimis : it spreads out below into a 

 fascia. This muscle I believe to be the palmaris longus externus. 

 The internus I could not discover, so that in this particular 

 Bassaricyon departs from its ally Cercoleptes, where both muscles 

 are present. 



The Gluteus maximus has a fleshy insertion on to the middle of 

 the femur for a very considerable part of that bone, after the great 

 trochanter. The anterior part of the muscle is inserted quite 

 separately on to the trochanter, there being a considerable interval 

 between the insertions of the two muscles. It nearly completely 

 hides the underlying glutceus medius. This muscle is very thick 

 and fleshy and shows traces of being a compound structure in- 

 cluding the pyriformis. At the insertion the distinction of the two 

 is quite obvious. 



The Glutceus minimus arises and is inserted below the last. 



The Tensor fasciae has a flat tendon and a short and flat muscular 

 belly ; it is inserted on to the fascia about half-way down 

 the thigh. 



The Sartorius is comparatively narrow at its origin, but it widens 

 out greatly at its insertion, entirely covering the knee. 



The Gracilis is formed of two quite distinct parts whose origins 

 occupy together the whole length of the symphysis pubis ; they unite 

 before their insertion on to the leg ; the posterior half of the 

 muscle is the larger and has a partly tendinous origin. 



The Biceps is two-headed : one, which is chiefly tendinous, 

 springs from the tuber ischii ; the other, which is fleshy, arises in 

 common with the glutseus maximus. The insertion on to the leg 

 is not very extensive, about the upper one-third. 



I could not find a Gaudo-femoralis. 



The Pectineus is a huge fleshy muscle divided into two layers, and 

 is distinct from the Adductor. There is but one adductor, which 

 is strap-shaped and fleshy throughout. It is inserted at the end of 

 the femur and partly on to the tibia. I am not quite certain 

 whether this may not be the presemimembranosus of Messrs. 

 Win die & Parsons. 



The Semitendinosus has a strong, narrow, round tendon of origin 

 from the tuber ischii and no second head. 



The Semimemhranosus presents no particular features of interest. 



The Tenuiftsimus muscle of this animal is very plain on dissection, 

 although extremely slender. It arises beneath the glutauis 

 maximus ; it ends in a flat tendon which is closely associated with 

 the semitendinosus but close to the insertion of the latter. 



The Gastrocnemius is two-headed. 



44* 



