CALIFORNIA EUPRILID^,. 5/ 



PAPERS REFERRED TO. 



Behha.m, \V. Blaxlaxl). An Attempt to Classify Earthworms. Quarterlj' Jmuuul of Microscopical Science, vol. 

 xxxi, pt. ii. 



Benham, W. Bla.xland. The NephriJium of Lumbricus, etc. Quarterly Jourual of Microscopical Scieuce, xxx, 

 ii, 1891, 293. 



Benham, \V. Blaxland. Description of Three New Species of Earthworms. Proceedings of the Zoological Society of 

 London, Feb. IG, 1892. 



Beddard, Frank E. The Classification and Distribution of Earthworms. Proceedings of the Royal Physical 

 Society, Ediub., IS!)1. 



Beddari>, Frank E. On the Earthworms collected iu Algeria and Tunisia. Proceedings of the Zoological Society 

 of London, .January 5, 1892. 



Beddard, Frank E. Some New or Little Known Oligoeh.-pta. Proceedings of the Royal Physical Society, Edinb., 

 June 13. 1893. 



Bourn, A. G. The Nephridia of Leaches. Quarterly Journal of Microscopical Science, vol. xxxiv, 592. 



Eisen Gtr.STAV. California Earthworms of the family of Eudrilidae. Zoe, a Biological Journal, San Francisco, Cali- 

 fornia, vol. iv. No. 3, 1893, pp. 248-254. 



Fletcher, J. J. Notes on Australian Earthworms. Proceedings Liunean Society of New South Wales, vii, .374. 



MiCHAELSEN, W. Oligocha'ten von Sud Georgien, .lahrbueh der Wissenschaftlichen Anstalteu zu Hamburg, 1887. 

 Hamburg, 1888. 



Rosa, Dr. Daniele. I Terrieoli Argentini, etc. Auuali del Museo Civico di Stoi-ia Naturale de Genoa, ser. 2, 

 vol. ix, .509, 1890. 



Rcsa, Dr. Daniele. Rui (Jeiieri Pontcxlrilus, Microscolex, Photodrilus. Bol. Musei, etc., di Torino, No. 39, vol. 

 iii, 1888. 



Rosa, Dr. Daniele. Microscolex Modestus. Bol. Musei, etc., di Torino, No. 19, vol. ii, 1SS7. 



EXPLANATION OF THE FIGURES. 

 deltania eleuans. Figs. 1-20. 



1. A medium sized worm, natural size. 



2. The anterior part magnified, seen from the ventral side, to show arrangement of setai and the exterior pores of 



various organs. /). n. p. the first three pepto-nephridio-ijores in somites ii, iii and iv. n. p. uephridio-pores 

 of the following somites, opening in front of the 3d seta», the pepto n. p. opening in front of the 4th seta?. 

 0. p. ovipore. s. pd. p. spermiducal jiore. 

 In order to show the outer setas, the body has been slightly flattened out. In reality the outer setfe should be 

 slightly more dorsal than what appears. 



3. The prostomium with somites i and ii. 



4. Schematic view of the arrangement of the seta; on both sides of the male pore. The italic numerals indicating 



the order of the seta\ the roman numerals indicating the nxnnber of the somites. 



5. The interior of the ventral surface of the genital somites viewed from above, showing the arrangement of 



the generative organs, etc. .'i;)<A. spermathecai. r. r. ciliated rosettes, s/i.s. sperm-sacs, sp.il. spermducts. 

 OIK ovary, od. oviduct, p. s. penial seta> and sacs. pr. prostate, i). ;//. ventral ganglion. I. testes. 



6. Longitudinal section of the anterior part of the body. The posterior section is a little more eccentric than 



the anterior, tir. brain, si. (jl. salivary glands. r.(jI. septal glands, phx. pharynx, s. plx. sigmoid plexus 

 of the oesophagus, xp. x. sperm-sacs. h. hearts, dv. dorsal vessel, l.i. tubular intestine, s. /. sacculated 

 intestine. ;))•. prostate, .s. ps. sacs with penial setae, v. gl. ventral ganglion, a's. oesophagus. sptk. 

 spermatheca. I. testes, c. r. ciliated rosettes, ov. ovary, od. oviduct. 



8. Prostate and male apparatus. /;)•. prostate, sp. d. spermdnct. p. s. penial setfe and sacs. ms. longitu- 



dinal muscular layer of the body wall. 



9. Oviduct in xiv and xiii. 



