24 
The Sxcrerary also exhibited two photographs recently sent 
to him by Surg.-Major George Henderson, M.D., F.L.S., showing 
a number of specimens of the large-tailed variety of Punjab 
Domestic Sheep. The tails of some of these animals are so large 
that they trail on the ground, and a small cart is provided to 
carry the tail and enable the sheep to move about. One of these 
carts, harnessed to a sheep, was shown in one of the photographs. 
Dr. F. E. Bepparp, M.A., F.R.S., F.Z.S., Prosector to the 
Society, read a paper on the anatomy and systematic arrange- 
ment of the Cestoidea, in which he described two new species of 
Tapeworms belonging to the genera Linsiowia and Oochoristica. 
A paper was received from Mr. E. W. Suann, communicated 
by Prof. W. C. McIntosu, F.R.S., C.M.Z.8., on “The Lateral 
Muscle of Teleostei.” The author has undertaken the present 
work in view of the conflicting statements extant as to the nature 
of the lateral muscle in Teleostean fishes; the primary object of 
the paper is to uphold the single-layer theory of its composition. 
After an historical summary of previous investigators, some 
personal observations are recorded dealing with the External 
Conformation and the Internal Structure. In conclusion, setting 
aside the dorsal and ventral ‘“ carinales” muscles and the “red 
muscle” (which occupies the furrow in which the lateral nerve is 
situated), the lateral muscle is held to be divided into a dorsal 
and a ventral longitudinal moiety by the horizontal septum 
beneath the lateral line. These moieties ave in turn divided 
(after Humphry) into mesio-dorsal, latero-dorsal, latero-ventral, 
and mesio-ventral portions, as defined by the external conformation 
of the myocommata; a new step is made in the correlation of 
these external areas with the underlying structure. The view 
of the conical or pyramidical structure of the myomeres recently 
advanced by Chevrel is maintained and to some degree amplified. 
The paper forms a preface to part of an extensive study on the 
myology of the pectoral region of fishes. 
Dr. W. T. Cauman, F.Z.S., read a report on the River-Crabs 
(Potamonide) collected by the British Ornithologists’ Union and 
Wollaston Expeditions in Dutch New Guinea, containing the 
descriptions of two new species. 
This paper will be published in the TRANsactions. 
Mr. OupFrreLD Tuomas, F.R.S., F.Z.S., read a report on the 
Mammals collected by the British Ornithologists’ Union and 
Wollaston Expeditions in Dutch New Guinea. 
The species obtained numbered 31, of which the types of 12 
had been brought home by the Expeditions. 
The two expeditions had obtained a very valuable series of 
ground-animals, notably of the genus Uremys, but there seemed 
