686 Zoology. 



when, in 1844, the Trustees published a biographical and 

 synonymical list of the specimens contained in the Museum 

 at that time. This list was apparently compiled by George 

 Newport, although edited and prefaced by Dr. J. E. Gray. 

 The collection was composed of representatives of 94 species 

 of Chilopoda and 75 of Diplopoda, amongst which were the 

 type-specimens of the species described by Dr. Leach in the 

 "Zoological Miscellany" (1817) and elsewhere; of the North 

 American species described by T. Say, and of the species 

 established by Dr. J. E. Gray in Griffith's " Animal Kingdom," 

 xiv., 1832. The numerous species instituted by Newport 

 himself during the preparation of this list were described in 

 vol. xiii. of the " Ann. Mag. Nat. Hist.," and in vol. xix. of the 

 " Trans. Linn. Soc. Lond.," 1845 ; the paper contained in the 

 last-named publication being Newport's classical monograph of 

 the Chilopoda. 



This list was followed in 1856 by a descriptive catalogue 

 of the collection, which was unfortunately never finished owing 

 to Newport's death. It contained a complete list of the 

 described species of Chilopoda, with diagnoses of the greater 

 number available for examination. The numbers of species 

 represented in the collection amounted at that time to 106, 

 showing an increase of twelve species in the twelve years that 

 had elapsed since the issue of the synonymical list in 1844. 



The Diplopoda were omitted from this volume, and the 

 preliminary diagnoses of the species published by Newport in 

 1844 were never subsequently issued in completer form. 



From 1856 to about 1870 no time or attention was given to 

 this group. It appears to have been placed in Mr. Butler's 

 charge on his appointment in 1863. Mr. Butler's first paper, 

 dealing with the Zephroniidae or Pill-Millipedes, was published 

 in 1873. Hence it is probable that he arranged the dried 

 collection of Myriopoda, in the cabinets in which they are now 

 stored, in about the year 1870. From 1870 to 1882 Mr. Butler 

 issued a few papers upon Myriopoda, most of them treating of 

 accessions to the collection of Pill-Millipedes. He described, 

 as well, however, some species from Duke of York Island, 

 Madagascar, and Rodriguez ; those from the latter locality being 

 collected by Messrs. Gulliver and Slater during the " Transit of 

 Venus" Expedition. 



Since 1886 the collections which have added most largely to 

 the value of the Myriopod material in the British Museum, and 



