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XII LIST OF ILLUSTRATIONS 



A SUMMARY OF THE EARTHWORM FAUNA OP BuRMA, WITH DESCRIP- 

 TIONS OF FOURTEEN NEW SPECIES 



By G. E. Gates 



1. Sketch map of Burma with the division between the so-called "Periph- 



eral Hill" and "Central Basin" region indicated by the fine con- 

 tinuous line; the broken line delimiting the triangular area represents 

 the portion of Burma to which our knowledge of the constitution of 

 the oligochaete fauna is almost wholly confined. The heavy outline 

 bounds the Province except its northern extremity 1 



2. Drawida cori'itricta. External view of ventral genital region 9 



3. Drawida flexa. a, Prostates X about 14. b, Atria X about 14 11 



4. Drawida tumida. a, Prostates X 10. b, Atrium X about 14. c, Open- 



ings of the papilla of VII X about 150 13 



5. Notoscolex binnanicus. Genital region 14 



6. Notoscolex depressus. Genital region 15 



7. Notoscolex depressus. Spermathecae X about 15 15 



8. Notoscolex lunatus. Genital region 17 



9. Notoscolex lunatus. Spermatheca X about 15 17 



10. Pheretima minuta. Spermatheca X about 14 20 



11. Pheretima ornata. a, b, Spermathecae X about 8. c, Gland from the 



prostatic region X about 20. d, Gland from the spermathecal 

 region X about 27 23 



12. Octochaetus lunatus. Spermatheca X about 45 25 



13. Eutyphoeus bifovis. Genital area 26 



14. Eutyphoeus bifovis. a, Penial seta X about 450. b, Penial seta X 



about 475 28 



15. Eutyphoeus constrictus. Penial seta, drawn from a microphotograph. 29 



16. Eutyphoeus constrictus. Spermathecal diverticulum X about 14 29 



17. Eutyphoeus excavatus. Genital region 31 



18. Eutyphoeus excavatus. Spermathecal diverticulum X about 14 32 



19. Eutyphoeus hastatus. a, Spermatheca X about 16. b, Tip of penial 



seta X about 91. c, Ornamentation of penial seta, oil immersion.- 34 



20. Eutyphoeus planatus. a, Genital area, b, Tip of penial seta X about 



412 36 



21. Eutyphoeus similis. Tips of penial setae 38 



22. Eutyphoeus similis. Spermathecal diverticula X about 14 39 



23. Eutyphoeus peguanus. Spermathecal diverticula X about 14 39 



24. Eutyphoeus peguanus. Penial seta. Drawn from a microphotograph. 40 



Distribution and key of the North American copepods of the 



GENUS DiAPTOMUS, WITH THE DESCRIPTION OF A NEW SPECIES 



By C. Dwight Marsh 



1. Distribution of Diaptomus albuquerquensis Herrick, D. bacillifer 



Kolbel, D. birgei Marsh, D. castor Jurine, and D. mem Lilljeborg — 7 



2. Distribution of Diaptomus ashlandi Marsh, D. clavipes Schacht, D. 



dorsalis Marsh, and D. leptopus Forbes 8 



3-4. Diaptomus mexicanus, new species, terminal segments of right an- 

 tenna of male; X 607. 4. D. mexicanus, new species, fifth right 

 footof male; X 307 12 



