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XXVI. Descriptions of several neio species of Myriopoda 

 of the genera Spba3rotherium and Zeplironia. 

 By Arthur G. Butler, F.L.S., F.Z.S.,&c. 



[Read August 7th, 1878.] 



The following species have been added to the National 

 Collection since the beginning of the year 1877, and 

 several of them are of great interest, being quite abnormal 

 in structure. 



Sph^rotherium, Brandt. 

 Splicerotherium crassum, n. sp. 



Pale castaneous ; the dorsal segments for the most part, 

 with their posterior margins, dusky or blackish ; the 

 second to seventh dorsal segments with blackish lateral 

 wings ; mouth, front of head, eyes and legs greenish. 



Head smooth, shining, slightly depressed on each side 

 of the central area, deeply sinuated in the centre behind ; 

 coarsely punctured, densely in front and sparsely towards 

 the back ; nuchal plate rather short, rugulose, with a 

 series of punctures on each side of the anterior margin ; 

 dorsal segments dull ; first dorsal segment ivitli broad 

 and thin lateral laminae, having a well-defined marginal 

 ridge ; second to eleventh segments rugose in front ; last 

 segment finely punctured behind, slightly compressed, 

 with well-marked marginal rim. 



Length 1 inch, 3 lines ; width 7 lines. 



Fianarantsoa, Madagascar (Rev. W. D. Cowan). 



Seems to be allied to my S. stigmaticum, but differs m 

 the rugose anterior portion of the dorsal segments and the 

 absence of the embossed triangular spot on the last seg- 

 ment. The differences of colour may be due to the speci- 

 men having been sent over in sawdust damped with spirits 

 of wine. 



Sphcerotherium angulatum, n. sp. 



Dark reddish castaneous, with the anterior portion of 

 each of the dorsal segments ochraceous ; under surface^ 

 legs and antennae testaceous ; eyes greenish testaceous. 



TRANS. ENT. SOC. 1878. — PART IV. (dEC.) 



