PACIFIC COAST OLIGOCHjETA. 155 



are dorsal. Spermiducal pore on anterior part of xix. Sperm -sacs in xi and xii, not 

 minutely lohulate. Spermathecce one pair in each of vii, viii and ix are dorsal. Sp)erm- 

 iducal glands or prostates 4 pairs in xxiii-xxvi, ivith a long miiscular duct. Most 

 anterior nephridium in xii. Septal glands in iv, v, vi of about equal size. A pair of 

 subpharyngeal parietal glands not present. Blood capillar-ies on nephridia few. A 

 continuous blood sinus in sacculated intestine. Blood glands 7nan>j. Hearts in viii, ix, 

 X, xi. Color violet, strongly iridescent. Habitat, Tepic, Mexico, 4<>00 feet. 



Sparganophilus guatemalensis n. subsp. 



Definition. Length 10 cm. by 1 1-2 mm. wide; number of somites 260. Dor- 

 sal pores none. Clitellum xvi-xxvi. I'ubercula pubertatis xviii-xxii, parallel ridges. 

 Setre 3 and 4 dorsal. Spermiducal pores unknoicn,. Prostates four pairs in x.riv, xxv, 

 xxvi, xxvii. Spermatheca' one pair each in vii, viii, ix; wide free end, roide, flat, outline 

 smooth. Hearts very strong. Color deep bluish violet iridescence. Habitat, Guatemala 

 City. 



Sparganophilus carneus n. subsp. 



Definition. Leiuph '.) cm., by 2 mm. nide; number of somites 160. Clitellum 

 do) sally l-2.i;v-xxv. 2\tbercula p)ubertatis unknoivn. Setce 3 and 4 dorsal. Spermidu- 

 cal pores unknown. Sperm-sacs in xi and xii, lobulate, but less minutely than in Sp. 

 Eiseni. Spermathecre one pair each in vii, viii, i.r dorsal; free end globular. Prostates 

 unknoivn. Septal glands in iv, v, vi, the one in vi the smallest. No subpharyngeal 

 integumentii I glands. Blood capillaries enormottsly large and many in the anterior six 

 somites. Hearts very large in riii, ix, x, xi. Color reddish flesh, much darker when in 

 alcohol than Sp. Benhami. Habitat, Mississippi River, near Clayton, Iowa. 



After these preliminary definitions I will now describe in detail the various 

 species of Sparganophilus examined by me. 



Sparganophilus Smithi n. sp. 

 Figs 120-122, 124, 129-39. 



Habitat. This species is very abundant in a small lake or pond known as 

 Laguna Puerca and situated between Lake Merced and Golden Gate Park at San 

 Francisco. Adult form in June to October, more frequent in the latter month. It 

 occurs at or near, above and below the water's e.dge, the earth being thrown up in 

 abundance and in heaps. I have already referred to nonpresence of this species 

 some ten years ago in the above locality. 



EXTERIOR CHARACTERS. 



Color. A brownish flesh with violet reflex, but much less so than Sp. Benhami 

 or Sp. guatemalensis. In alcohol this species becomes much paler than either of the 

 two just referred to, almost pure white, looses its irridescence entirely. In formalin 

 the color is pale, the irridescence very faint, strongest on the clitellum, and hardly 

 perceptible on any other part of the body. 



Length varies some, but generally reaches in fully grown and lai-gest speci- 



Memoiks, Vol. II, 5. Jauuarv 6, 1896. 



