Summary of Illinois genera and species in comparison with those re- page 



corded for other states 536 



Number of Illinois species recorded 536 



Number of New Jersey species recorded 537 



Number of species recorded by Johannsen 537 



Index to genera and species 539 



ARTICLE VII. TWO NEW SPECIES OF LUMBRICID^ FROM 

 ILLINOIS. BY FRANK SMITH, A.M., AND ELIZABETH MAE 

 GITTINS, M.A. August, 1915 545-550 



Helodrilus (Bii)iastus) :;etcki. n. sp 545 



External characters 546 



Internal characters 547 



Helodrilus (Bii)iastiis) loiigiciiictiis. n. sp 548 



External characters 548 



Internal characters 549 



Affinities of the two new species 549 



Literature cited 550 



ARTICLE VIII. TWO NEW^ VARIETIES OF EARTHWORMS WITH 

 A KEY TO DESCRIBED SPECIES IN ILLINOIS. BY FRANK 

 SMITH, M.A. (i Plate) August, 1915 551-559 



Helodrilus (Bimasfus) gieseleri hcmpeli, n. var 551 



External characters 551 



Internal characters 552 



Diplocardia siugularis fluviatiiis, n. var 553 



Explanations with regard to key 554 



Tabular key Opposite 554 



Data on distribution and habitats with citations to descriptions 555 



Literature cited 558 



Explanation of plate 558 



