354 Mr. A. G. Butler on new Myriopoda. 



The Government of Canada (to whom I had the honour of 

 presenting a report on this preliminary deep-sea dredging- 

 expedition, with special reference to facts collected bearing on 

 the fisheries) has decided that the prosecution of these inquiries 

 shall be continued. A vote of a small sum of money has 

 been passed, which will, it is hoped, defray the necessary 

 expenses of the expedition. I propose to devote the months 

 of July and August of the present year to endeavouring to 

 dredge in the greatest depths of the River and Gulf of St. 

 Lawrence, particularly in the deepest place to the west of 

 Newfoundland. Between the east point of Anticosti and the 

 Magdalen Islands, about halfway, and in an easterly direction 

 towards Newfoundland, is the deepest part of the gulf. The 

 bottom, at this locality, for several miles (nearly two meridians) 

 has a depth of 313 fathoms. Last year we were unfortunate ; 

 for as soon as we were fairly on the ground, and had got 

 every thing in readiness, a stiif north-west gale sprung up, 

 which lasted sixty hours, and made dredging quite imprac- 

 ticable. It is hoped that in this respect our efforts will be 

 more successful during the present season. 



Montreal, July 12, 1872. 



XLIX. — Descriptions of new Myriopoda of the Family Glo- 

 meridse. By Arthur Gardiner Butler, F.L.S., F.Z.S., &c. 



[Plate XVin.] 

 The millipedes treated of in the present paper are all in 

 the collection of the British Museum. 



ChILOCtNATHA. 



Family Glomeridae*, Gervais. 



Genus Zephronia, Gray. 



1. Zephronia chitonoides^ n. sp. PI. XVIII. figs. 2, 2 a. 



Brownish testaceous, inclining to castaneous ; head and 

 nuchal plate darker. 



Head shining, external area coarsely rugose, central area 

 coarsely punctured, inner margin bearing about fourteen minute 

 teeth ; dorsal segments highly polished, covered with exceed- 

 ingly indistinct, almost obsolete, granulations ; external margin 

 of first segment rugose ; last segment very oblique ; segmental 

 lateral wings much incurved in dried specimens, very oblique. 



* Variously designated Zephrom'idee, SpJicerotliendce, and Polyzo7iiidce ! 

 (Wood, Proc. Acad. Nat. Sci. Philad. 1865, p. 172), In his ' Apteres,' 

 M. Gervais restricts this family to the three genera Polyzonium, Siphono- 

 tus, and Siphonophora. 



