4 H. J. HANSEN. 



those set forth by me in a following chapter will show that 

 I have accepted them as quite correct, with exception of his 

 opinion on the " paraglossfe." His very long discussion 

 (pp. 607 — 617) on the affinities of the order must be passed 

 by here, but it may be added that he gives a not quite 

 complete list of the papers printed between 1763 and 1885, 

 in which Scolopendrella has been mentioned. 



In 1889 Dr. E. Haase published his well-known paper 

 " Die Abdomiualanhange der Insekten, mit Beruchsichtigung 

 der Myriopoden " (^ Morphol. Jahrb./ B. xv, pp. 331 — 435, 

 Taf. xiv, xv), in which he investigates and discusses the 

 appendages at the base of the legs and the ventral sacs. 



In 1895 P. Schmidt published " Beitrage fiir Kenntniss 

 der niederen Myriopoden " ('Zeitschr. f. wiss. Zool./ Bd. lix) ; 

 the morphology of Scolopendrella is dealt with on pp. 461-78 

 (Taf. xxxvii, figs. 31 — 45), and some of the anatomical results 

 do not agree with those of Grassi, but the paper contains 

 nearly nothing of any significance to the purpose of the 

 present paper. Schmidt states that he has examined S. 

 immaculata, captured partly near St. Petersburg, and 

 partly in tlie orangery of the botanical gardens in that town, 

 but I am inclined to suppose that the animals from the 

 orangery belonged to the species described later on as Scut. 

 caldaria, n. sp. 



From 1885 to 1900 several zoologists — E. Haase, E. Daday, 

 A. Berlese, C. v. Porat, and C. Graf v. Attems — have re- 

 described earlier known species of Symphyla collected in the 

 European countries of the respective authors, or published 

 local faunistic lists; and A. S. Packard, II. 1. I'ocock, and 

 F. Silvestri have indicated new localities out of Europe for 

 Scut, immaculata. In another chapter of this treatise the 

 most interesting localities, stated in some of the papers of 

 these authors, for the last-named species will be discussed, 

 while the other localities and the descriptions need no 

 mention. Since Grassi^s paper (1886) no author has estab- 

 lished any species or genus of our order. 



It may be proper to conclude with a short review. Of the 



