282 BIOLOGICAL SURVEY OP 



Class CHILOPODA Centipedes 



The paper by Williams and Hefner referred to above will 

 furnish a satisfactory introduction to our species. In addi- 

 tion to the two forms named below, two or three other litho- 

 biids and geophilids occur, but have not been determined. 



Order LITHOBIOIDA 



Lithobiidae 



LiTHOBius Leach 



L. FORFicATUs (Liniie). (Williams and Hefner, 1928, p. 

 142.) In our Region a lithobiid exceeding- 20 mm. in length, 

 and having the coxal pores of the last pair of legs trans- 

 versely elongate and arranged in a single row, will belong- 

 to this species. Fairly common and generally distributed 

 under stones and logs. Cortield, Hulls Cove, Salisbury Cove, 

 Ocean Drive. 



BOTHROPOLYS Wood 



B. MULTiDENTATUs (Ncwport). (Williams and Hefner, 

 1928, p. 143). The pores of the last pair of coxae are nearly 

 circular and arranged in more than one row. A little smaller 

 than the preceding, much rarer, but found in the same sort 

 of habitats. Base of Newport Mountain. 



LITEEATURE 



Blake, C. H. 1931 Notes on New England millipedes. Bull. Boston Soc. Nat. 



Hist., no. 60, pp. 15-29, 2 fig. and cover. 

 Verhoeff, K. W. 1931 Pseudopolydesmus "im Wechsel der Zeiten." Zool. 



Anz., Bd. 94, pp. 305-318, 7 fig. 

 1932 Diplopoden-Beitrage. (124. Diplopoden-Aufsatz.) Zool. Jahrb. 



Syst., Bd. 62, pp. 469-524, 3 pi. 

 Williams, S. R., and Hefner, R. A. 1928 The millipedes and centipedes of 



Ohio. Bull. Ohio Biol. Surv., no. 18, pp. 93-147, 26 fig. 



