NOTES UPON THE SPECIES OF MYRIOPODA SYNGNATHA, DE 



SCRIBED BY THOMAS SAY.* 



BY CIIARKKM II. HOI. I.MAN. 



Diirinj? tlu» past year, whilQ endeavoring to identify the North Anier- 

 lean specit'8 of niyriapods des<Tib«'d by early authors, 1 have .spent con- 

 siderable time Htudyiny those d«'8cribt'd "by Mr. Tliomas Hay, whose 

 only work on our species appeared in the .Journ. Acad. Nat. Sci. Philii., 

 for IH'Jl. As my conclusions in several «ases in retj:ard to the identiti- 

 cation of his species are diftcrent from the opinions held by other au- 

 thors I have deemed it best to embody my views in the form of a paper. 



The only tyi)eaof Say's species that are probably now preserved are 

 those sent by him to Dr. Leiiyh and deposited by tlie latter gentleman 

 in the British Museum. These specimens were afterwards studied by 

 Newport and (Iray, and lately the type of Cryptops pontiruH and the 

 genus Theatopx have been reexamiue<l by Mr. K. Innes Pocock. 



i.i the foUowing i)aper I have marked with an asterisk (•) those 

 species the types of which are now preserved in the collection of the 

 above museum. Of the seventeen species described by Say all except 

 one are good, the names of t'«ree, on account of preoccupation, have 

 had to be changed, and six have since been transferred to other genera. 



1. JuluB impressuB Say. Journ. Acad. Nat. Sci. Phila., 102, 1K21. 

 Parajului impresmin Bollmiin. Ann. N. Y. Ac. Sc, 34, 1887. 



This species, at tirst considered to be valid, was afterwards identified 

 by Dr. Wood with his Julun i^enmtim. A comparison of these two si)e- 

 cies shows that they are very different. Besides, venustuH is not found 

 south of Kentucky, while Say's specimens of impreHHUH were from Geor- 

 gia and Florida, although it ranges north into the regiim of venmtns 

 (Connersville, Brookville, and Bloomingtou, lud.). This species should 

 now stand as Parajulm imprenHUS (Say). 



2. Julus punctatus Say. Journ. Acad. Nat. Sci. Phila., 102, 1821 (preoccupied by 

 Jiihis piinctatHH Leach, 1815). 

 JuluH HtiijmatoHHH Rrandt. Recueil, 88, 1841 (preoccupied by Julus stigmatosus 

 Eichwald, Zool. spec, ii, 124, iH30 (^^Strongyloaoma paUipen Olivier). 



*I now regard the old {jroup of Myriopoda as .being composed of two utterly dis- 

 tinct divisions, one including the Panropoda and Diplopoda, to which I have restricted 

 the name of Myriapoda, and th<i otlier including tho Synfinntha as more closely re^^ 

 lated to the Hexvpoda, aud shiiultl lut uuiiifid with it in a diutiuct class.. 



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