20 On the Myology of Sarcophilus ursiims. 



The quadratus femoris was very remarkable, arising from 

 the transverse process of the first caudal vertebra, from the 

 tuber ischii, and a tendinous band which passed from the one 

 to the other. Gluteus minimus was easily separable from the 

 medius. A very thin slip represented the obturator internus. 

 Tensor vaginge ifemoris is separate and thin. Sartorius is ex- 

 ceedingly feeble. The biceps flexor cruris arises only from 

 the tuber ischii and two caudal vertebrge. 



The " bicipiti accessorius " was quite distinct at its origin, 

 but joined at its insertion to the semitendinosus — which muscle 

 was thus tricipital, having one head caudal overlapping the 

 biceps, one ischiatic, and, thirdly, this accessorius. The two 

 other heads are similar to those which exist for the same muscle 

 in Castor Jiber, Atherura, and the Otter. There is a middle 

 head of the gastrocnemius, which joins the external. 



The peronaei and tibial muscles were exactly similar to those 

 in my former specimen. The foot-muscles were as follows : — 

 Abductor ossis metatarsi minimi digiti, from the os calcis to 

 the spur of the fifth metatarsal ; abductor minimi digiti, a 

 superficial muscle, with a short triangular belly and a long 

 tendon, which arises from the external annular ligament over 

 the peronsei tendons, and is inserted into the fascia over the 

 flexor tendon of the little toe. 



The lumbricales were six in number — one to the inner and 

 one to the outer side of the outer toe, a similar pair for the 

 fourth toe, a single internal muscle for the third and one for 

 the second toes. 



The rudimental hallux has two muscles — a flexor brevis, 

 which extends from the scaphoid bone to the first phalanx, 

 and an exceedingly fine triangular and superficial adductor, 

 which arises superficial to the palmar interosseous muscle for 

 the index toe, and is inserted into the inner side of the first 

 phalanx of the hallux. 



The interossei were three plantar and four dorsal, the former 

 being (1) adductor indicis, (2) adductor quarti digiti, (3) ad- 

 ductor quinti digiti ; the latter were (1) abductor indicis, 

 (2) adductor tertii digiti, (3) abductor tertii, and (4) abductor 

 quarti digiti. 



The only other points worthy of note were the extension of 

 the scalenus posticus to the upper four ribs, of the external 

 oblique to the ten lowermost, the absence of ilio-costal fibres 

 in the quadratus lumborum, an enormous triangularis sterni, 

 a two-bellied depressor of the mandible, whose anterior por- 

 tion is connected to and parallel with the genio-hyoid, with 

 which it a2:rees in function. 



