2 



during the " Skeat Expedition " to the Malay Peninsula. Four 

 new species were described in the second paper and nine in the 

 last. 



A communication was read from Mr. A. D. Imms, entitled 

 On the Oral and Pharyngeal Denticles of Elasmobranchs." The 

 Author had found that these denticles were present in varied 

 abundance over the mucous membrane lining both the oral and 

 pharyngeal cavities in many of these fishes. Out of the specimens 

 of the nineteen species (representing eighteen genera) examined, 

 only five, belonging to as many genera, were found to be totally 

 devoid of these structures. In some cases the denticles were 

 uniformly distributed over the whole of the mouth, pharynx, and 

 branchial ai'ches, and this appeared to be the primitive method 

 of distribution. In other forms they tended to disappear from 

 the roof and floor of the mouth and pharynx and became more 

 or less restricted to the branchial arches, or confined almost 

 entirely to the oral cavity. The structure of the denticles proved 

 that they were undoubtedly placoid scales. They did not appear 

 to subserve any definite function, and they were probably to be 

 regarded as vestigial organs. 



Dr. C. W. Andrews, F.Z.S., exhibited and made remarks upon 

 the skull of a Musk-Ox from the river-gravels of the Severn 

 Valley at Fi-ampton-on-Severn, near Stonehouse, Gloucestershire. 

 The specimen consisted of the cranial portion of the skull of 

 an old bwll, and was found by Mr. W. T. Rennie, of Chepstow, 

 who had presented it to the British Museum. Remains of this 

 species were comparatively rare in Biitain, and the nearest 

 previously I'ecorded locality to that described was Barnwood, near 

 Gloucester. 



Mr. H. E. Dresser, F.Z.S., exhibited and described three new 

 birds obtained by Col. Waddell, C.B., on the recent expedition to 

 Lhassa, these being the ornithological first-fruits of that expe- 

 dition, viz. : — 



Babax avaddelli, nearest to, but difiering widely from, Babax 

 lanceolatus ; 



Garrulax tibetanus, a much darker and more uniformly 

 coloured bird than Garrulax sannio, with the terminal part of the 

 tail white ; and 



Lanius lama, a much darker bird than Lanius schach, with less 

 white on the forehead, no rufous on the back or scapulai's, and no 

 trace of an alai' specidum. 



