AN ATTEMPT TO CLASSIFY EARTHWORMS. 225 



Prostates lobate, and sometimes extending beyond their 

 proper somite. 



Sperm-sacs. — Two pairs in Somites ix and xii. 



[Prostomium small; dorsal pores present. 



Testes and ciliated rosettes in Somites x and xi, free. 



Spermathecae with appendices^ usually two pairs in Somites 

 VIII and IX (rarely more) . 



Gizzard in Somite v or vii. 



" Salivary glands " are present, but do not appear to open 

 into the pharynx. 



Intestinal calciferous glands occur in Somites ix or x 



to XIII.] 



Species 1. C. rusticus, Fletcher, 1886; Australia. 



2. C. saccarius, Fletcher, 1886; Australia. 



3. C. fletcheri, F. E. B., 1887; Australia. 



4. C. rubens, Fletcher, 1887; Australia. 



5. C. mediterreus, Fletcher, 1887; Australia. 



6. C. fastigatus, Fletcher, 1888 ; Australia. 



7. C. unicus, Fletcher, 1888; Australia. 



8. C. singularis, Fletcher, 1888; Australia. 



9. C. canaliculatus, Fletcher, 1888; Australia. 



10. C. manifestus, Fletcher, 1888; Australia. 



11. C. mediocris, Fletcher, 1888; Australia. 



12. C. tenuis, Fletcher, 1888; Australia. 



13. C. illawarrse, Fletcher, 1888; Australia. 



14. C. mudgeanus, Fletcher, 1888; Australia. 



15. C. sloanei, Fletcher, 1888; Australia. 



16. C. oxleyensis, Fletcher, 1888; Australia. 



17. C. purpureus, Michaelsen, 1889; Australia. 

 See Fletcher, 'Proc. Linn. Soc, N.S.W.,' vols, i, ii, iv; 



Beddard, 'Proc. Zool. Soc," 1887; Michaelsen, 'Jahrb. d. ham- 

 burgischen wiss. Anstalten,' vi, 1889. 



Genus 4. Didymogaster, Fletcher, 1886. 

 Setae separate, nearly equidistant. 



Clitellum feebly developed ; occupies Somites xivto xviii. 

 Male pores on Somite xvui, on papillae. 



