MYRIAPODA 77 



Length less than 30 mm. ; claw of anal legs of nearly normal size. 

 Last sternum nearly as broad as long, much narrowed behind; 



pleural pores 5 or 6 on each side E. albus sp. nov. 



Last sternum narrow, oblong, scarcely narrowed behind ; pleural 

 pores about 17 on each side E. liber Cook & Collins. 



ESCARYUS ALBUS sp. nov. 



Type. — No. 794, U. S. Nat. Mus. Collected at St. Paul, Pribilof 

 Islands, by T. Kincaid in 1897. 



Size, habit, and color of Schetidyla ncmorcnsis, but with the last 

 legs nearly normal and armed with a normal claw, the anal pores pres- 

 ent and the pleural pores numerous. 



Length 17 mm. : width .7 mm. ; female with 45 pairs of legs. 



Color waxy white, under the microscope delicate and subtransparent 

 in texture. 



Last sternum trapezoidal, about as broad as long, but much narrower 

 behind than in front; pleural pores 5 or 6 on each side, differing some- 

 what in size, and placed without regularity. 



Legs short and subconic; the last pair six-jointed and armed with a 

 claw of normal shape and nearly normal size ; they are somewhat 

 larger than the others, but are not crassate. 



Two specimens were found in vials with large numbers of Tomo- 

 ttznia chionophila. The animals may be young, but the resemblance 

 to adults of Schendyla nemorensis is very striking, and on geograph- 

 ical grounds the probability of distinctness from eastern species is great. 

 The Siberian species from Vladivostock is large, deeply colored, and 

 robust, measuring 60 mm. and upward in length, and the females have 

 49 or 51 pairs of legs. 



