220 bulletin: museum of comparative zoology. 



or 16 pores, part of which are arranged along and partly covered by 

 the last ventral plate; a pore somewhat larger than the others is 

 isolated midway between the most caudal of the other pores and the 

 distal end of coxopleura. 



Anal legs moderately long; slender, the joints decreasing in diame- 

 ter from the femur distad; second tarsal joint moderately attenuated 

 distad and bearing a very small and slender but distinct claw. 



Length about 42 mm. 



Locality. — British Guiana. (Taken at Washington, D. C, in 

 pots of plants imported from that country). 



LITHOBIOMORPHA. 



LiTHOBIIDAE. 



LiTHOBius Leach. 



Trans. Linn. soc. London, 1814> 11, p. 381; Latzel, Myr. Ost-Ung. monarch., 

 1880, 1, p. 31; Meinert, Proc. Amer. philos. soc, 1886, 23, p. 174; Ver- 

 hoeff, Bronn's Thierreich, 1907, 5, p. 239. 



LiTHOBius FORFiCATUS (Linne). 



Scolopendra forficata Linne, Syst. nat. ed. 10, 1758, 1, p. 638. 



Liihobius forjicalus Stuxberg, Ofvers. Kong. vet. akad. Forh., 187.5, p. 27; 



Fedrizzi, Atti Soc. Ven-Trenk.. 1875, 5, p. 205; Latzel, Myr. Ost-Ung. 



monarch., 1880, 1, p. 57; Meinert, Proc. Amer. philos. soc, 1886, 23, p. 176. 

 Lithobius parvolus Fedrizzi, Loc cit., p. 213. 

 Lithobius trilineatus Brolemann, Cat. Myr. Bresil., 1908, p. 33. 

 (For extended synonymy and bibliography cf. Stuxberg, Loc. cit.). 



Locality. — Recorded from Brazil as Lithobius trilineatus, the type 

 being the only record of the species or genus from the country. It was 

 probably introduced. 



SCUTIGEROMORPHA. 



SCUTIGERIDAE. 



Pselliophora Verhoeff. 



Sitz. Gesellsch. nat. freunde Berlin, 1904, p. 259; Bronn's Thierreich, 1907, 

 5, p. 230. 



