•2n 



MiciioTUS xi'X, sp. n. 



AUioil to M. hiez, but darker ami witli a longer tail ; 2u(l and 

 3rd spaces of n>' united. 



Head and body 93 nnn. : tail 39 ; liiud foot IG'T). 



Ilab. Shang-chow, S.E. Shen-si, l^ijpe. Male. Original niunber 

 2089. 



MiCROTUS JOHANNES, sp. n. 



Allied to M. mandarinus, but with smaller skull. Colour 

 wood-brown instead of drab. 



Head and body 95 inm. ; tjiil 23; hind foot 17. Condylo-basal 

 length of skull 24-6. 



Hah. N.W. of Ko-lan-chow, Shan-si. 7'>/pe. jSlale. 13.j\[. 

 No. 9.1.1.178. 



Mr. J. Lewis Bonuote, M.A., F.L.S., F.Z.S., exhibited a yellow 

 variety of Mus rattus. This individual had been bred from two 

 wild-cjvnght examples of Mits rattus tectorum from Egypt. The 

 long hairs on the upper parts, which are normally black, were 

 colourless and the shorter body-hairs had grey bases with yellow 

 tips. As far a.s he knew, this was the first recorded example of a 

 yellow rat, which was a colour quite unknown to fanciers and 

 was never met with by Crampe or Doncaster, who had conducted 

 colour-breeding experiments on Rats. Although it was not defi- 

 nitely stated, these experiments had probably been cari-ied out with 

 ^[as norvegicns. A careful search through the large series of 

 J/as rattus in the British jMusonm also failed to bring to light 

 any yellow forms. 



Centenary of Philip Henry Gosse, FJLt'S. 

 Born A2)ril'i6, 1810; died Aug. 23, 1888. 



The Secretary exhibited the set of the works of Philip Heniy 

 Cosse in the Society's Lil)raiy and gave a brief sunnnai-y of his 

 contributions to science, upon which he placed a very high value. 

 The Chairman and Prof. A.Sedgwick, F.R.S., added their testi- 

 mony to his place in Zoological history ; Dr. Henry Woodward, 

 F.ll.S., gave some personal i-eminiscences ; and INIi-. Edmund Cosse, 

 Librarian of the House of Lords, the son and biographrr of Cosse, 

 thanked the Society for their notice of his father's centenar}'. 



Dr.W. T. CalmaNjF.Z.S., communicated a paper by Mr. Stanley 

 Ke.mi', Ji.A., entitled "Notes on the Photophores of Decapod 

 Crustsicea." 



I\Ir. .). Lewjs IJumiote, M.A., F.L.S., F.Z.S., reatl a paper on 

 the Variations of Mns rutins, founded on an examination of the 

 forms of that species found in Egypt. The author jjointed out 

 tliat on examination of the hind-foot measurements of a con- 

 siderable number he found that the curve showed three dihtinct 

 apices, and that two of the.'-c apices V>clongcd respectively to the 



