PACIFIC COAST OLIGOCH^TA. 153 



luimber of vegetable gardens have of late years been established at the headwaters 

 along the creek furnishing the lake, and it is probable that SjMrganophUus Smithi 

 has been introduced with watercress, etc., from some other locality within the last few, 

 say ten years, while the eye-bearing species may yet be living in the bottom soil. 



KEY TO THE SPECIES OF SPARGANOPHILUS. 



I. Setas 3 and 4 ventral; uo prostates, spermducts dorsal to tuberciila pubertatis. 



Sparganophilus tamesis Benham. 



II. Seti¥ 3 and 4 dorsal, prostates present, situated several somites posterior to the male pores. 



A. A pair of ventrally situated parietal glands in somite iii. Spermducts and spermiducal pores dorsal to 

 tubercula pubertatis. Sparganophilus Eiseni Smith. 



B. No ventral parietal gland in any somite. 



X. Spermiducal or male pore ventrally situated to the tubercula pubertatis. 



a. 8 spermalheciK in each of somites vii, viii, is. 2 ditto in vi. Sparganophilus Smithi u. sp. 



b. 4 spermatheca' in each of somites vii, viii, ix. 2 ditto in vi. Spakoanophilus sono.m^ u. subsp., 

 XX. Spermiducal pore dorsally situated to tubercula pubertatis. 



c. SpermatheciB trowel-shaped, outline crenulated. Sparganophilus Benhami n. sp. 



d. Spermatheca- trowel-like, but outline smooth. Sparganophilus guatemalensis n. subsp. 

 XXX. Spermiducal pore unknown, but probably dorsal to tubercula jjubertatis 



e. Spermatheca? club-like, apical end globular, smooth. Sparganophilus carneus u.sp. 



Sparganophilus tamesis Benham. 



Definition. Lenrjth 7 to 10 cm. Clitellum 1-2 xv-1-2 xxv. Tubercula puber- 

 tatis xvii to xxii ventral to spermiducal pore. Setat S and 4 ventral. Spermiducal pore 

 between xviii and xix dorsal to tubercula pubertatis. Sperm-sacs in xi and xii minutely 

 lobulate. Spermathecre one pair in each of somites vii, viii, ix, ventral. N^o pr'ostates. 

 Ante7'ior nephridiitm in xiii. Septal glands in v and vi. No subpharyngeal integu- 

 mental gland. Blood capilaries on nephridia are numerous. Continuous blood sinus in 

 the sacculated intestine. Hearts in viii, ix, x, xi, not filling the calom. Color pinkish 

 icith violet iridescence. Habitat, England, Thames. Description is compiled after 

 Benham's paper only, as I have not seen any specimens. 



Sparganophilus Eiseni Smith. 



Definition. Length 1<S to .^0 cm.; width 26 cm. Clitellum dorsally 1-4 xv~ 

 xxv, ventrally 1-2 xiv-xxvi. 'Tubercula pubertatis 1-2 xvii-1-2 xxii, ventral spermathecal 

 pores. Setre 3 and 4 dorsal. Spermiducal pore in anterior part of xix, dorsal to tubercula 

 pubertatis. Sperm-sacs minutely lobulate. Spermathecm, one pair each in vii, viii and 

 ix, all dorsal. Prostates 4 pairs in xxiii — xvi; muscular duct inesent. Anterior 

 nephridia commence in xiii. Septal glands in iv, v, about the same size, while the one in vi 

 is very small. A subpharyngeal parietal pair of glands present, opening in front of 

 sette 1 and 2 in somite Hi. Blood capillaries on nephridia are many. Continuous blood 

 sinus in sacculated intestine present. Hearts in viii, ix, x, xi small. Color violet flesh. 

 Habitat, Illinois, North America. 



Prof. Frank Smith has kindly sent me for comparison a full set of sections of 

 this species, also several mature specimens in alcohol and formalin. As, however. 

 Prof. Smith writes me that he intends to further work out the details of the anatomy 

 and histology of this species, I have not considered myself at liberty to more than 



