128 



kind could have any use it is difficult to imagine ; it had no connexion 

 with the sterno- pericardial ligaments of Luschka, which sometimes, 

 though rarely, exhibit traces of unstriped muscles. 



11. The second visceral slip was situated on the abdominal wall of 

 a young female subject, and to it I would assign the name pubio- 

 peritonealis. It arose from the right side of the ilio-pectineal line, 

 immediately behind the attachment of Gimbernat's ligament, From 

 this point it ran upwards, and a little outwards, beneath the transver- 

 salis abdominis muscle, and over the fascia transversalis. After cross- 

 ing the deep epigastric artery, it terminated not far out from the 

 median line, by being inserted into- the fascia transversalis and perito- 

 neum at a distance of two-thirds of the interval between the umbilicus 

 and the pubis. Of the normal abdominal muscles in this subject there 

 was a pyramid alis nearly reaching to the umbilicus, a supernumerary 

 supra-umbilical linea transversa in the rectus, and a strong and thick 

 transversalis. 



12. The chondro-epitrochlearis occurred twice, springing from the 

 cartilage of the seventh rib, running along the lower edge of the great 

 pectoral tendon, and ending in the internal intermuscular septum, by 

 which it is connected to the inner condyle. 



13. In the perineum of a male subject a large superficial muscle 

 arose from the surface of the inner border of the tuber ischii, and was 

 inserted into an expansion over the corpus spongiosum urethras, super- 

 ficial to the accelerator urinse, and covering in the posterior part of the 

 intermuscular triangle concerned in the second incision of lateral litho- 

 tomy. The transversus perinei was normal, and deeper seated, but 

 there was no ischiobulbosus, or transversalis alter. This slip could not 

 be a representative of that muscle, however, as it was superficial to 

 the other perineal muscles, and in front of the transversus proper. 

 From its great size and strength, being larger than all the normal 

 perineal muscles together, it might have caused spasmodic stricture. 

 Its affinities are very hard to determine ; but, from its being placed 

 superficially, and from the more distinct nature of other aberrant bands 

 in this position, it might be regarded as a portion of the general pan- 

 niculus carnosus specially developed. 



14. A supra- clavicularis muscle, similar to the slip of that name 

 described by Luschka, of Tubingen, in Miiller's "Archiv," (1856,) 

 p. 282, and Taf. 10, existed in the same subject as the pericardio -thyroid 

 above described ; it arose from the summit of the manubrium sterni, 

 and passed to the front of the clavicular origin of the cleidomastoid 

 muscle. This is the only instance of this muscle which I have ever 

 met with ; but it has been described by Haller, and was considered by 

 him as a supernumerary subclavius, and is described, when occurring 

 on the deep surface of the sternum, by M. J. Weber, as an upper de- 

 tached slip of the triangularis sterni, to which indeed it seems to me to 

 be closely allied. 



Among the representatives of new muscle types in the upper limb, 

 the following instances have been found : — 



