170 MR. F, E, BEDDARD ON THE [ Feb. 16, 
membrane in question may correspond to a gubernaculum testis 
diffusely developed. This, however, appears to be less likely. 
By many zoologists the Hyrax is regarded as forming with the 
Hlephant a group, Subungulata, lying at the base of the Ungulate 
series. Recently opinion appears to be veering away from this 
view of the affinities of the animal. Lonsky, already quoted, sees 
in the alimentary tract and genitalia “the most resemblance” to 
the Rodents; while Erich Fischer * holds that the carpus and 
tarsus are not derivable from a primitive Ungulate such as 
Phenacodus, but since they combine the characters of Rodents 
and Ungulates are perhaps more to be compared to those of the 
Tillodontia or primitive Toxodonts. Finally, Assheton f cannot 
see in the placenta any likeness to that of any Ungulate or 
Hlephant, but compares it on account of its “‘ cumulate” characters 
to that of the Insectivora, or even to that of the Primates. It is, 
therefore, not without interest to note that in the characters of 
the testis Hyrax shows a likeness to one of the few other Eutherian 
Mammals in which the testes are completely abdominal in position 
throughout life, viz., Hlephas. Lonsky denies any special resem- 
blance in form, but says nothing of the testicular membrane with 
which I am at present concerned. 
(3) On the Existence of a new Skeleto-visceral Muscle in the 
Pygmy Hog, Porcula salvania. 
Among the Mammalia the only skeleto-visceral muscles, 7. e. 
muscles which pass from some part of the bony skeleton to some 
viscus or viscera, are confined, so far as I am aware, to the 
diaphragm and to muscles in the hyoid region. Nor are such 
muscles very common among the lower vertebrata. We have the 
slips of muscle which run from the ribs to the surface of the lung, 
and the two muscles connecting the windpipe with the skeleton, 
in Birds; there are certain muscles connecting the vertebral 
column and the cesophagus and lungs in Frogs; the ventral sheet 
of muscle reaching the stomach and liver in Crocodiles and the 
Lizards of the genus Varanus ; muscles in the mesentery of various 
Saurians, and the tongue-muscles in all of these animals. These 
are at least the principal instances of such skeleto-visceral muscles 
among Reptilia, Amphibia, Crocodilia, and Aves. 
It is, therefore, interesting and not without importance to be 
able to add to this series a quite new muscle of the same kind in 
the Pygmy Hog, Sus, or Porcula, salvania. The anatomy of this pig 
was carefully described by Dr. J. G. Garson some years since in 
the ‘ Proceedings’ of this Society t. TI cannot find in that account, 
which is quite comprehensive as regards the viscera, any mention 
* Jen. Zeitschr. Bd. xxxvii. 1903, p. 691. 
+ Phil. Trans. B, vol. 198, 1906. 
{ P. Z. S. 1883, p. 413. This, moreover, is described as the “first part.” The 
second part, dealing with muscles, has not I believe appeared. 
