68 EDWIN 8S. GOODRICH. 
7. Goopricu, E. §8.—‘On a New Organ in the Lycoridea, &c.,” ‘ Quart. 
Journ. Micros. Sci.,’ vol. xxxiv, 1893. 
8. Goopricn, EH. 8.—“On the Structure of Vermiculus pilosus,” 
‘Quart. Journ. Micros. Sci.,’ vol. xxxvii, 1895. 
9. Micuartsen, W.— Untersuchung iiber Enchytreus MObii,” ‘In. 
Diss.,’ Kiel, 1886; and ‘ Vorlaufige Mittheilung,” ‘ Zool. Anz.,’ 1885. 
9a. MicuaEtsen, W.—“ Enchytreeiden-Studien,” ‘Arch. f. Mikros. Anat., 
Bd. xxx, 1888. 
10. Route, L.—“ Etudes sur le développement des Annélides,” ‘Ann. Sci. 
Nat.’ (7), vol. vii, 1889. 
11. SHarprri, Th.—‘‘ Das Chloragogen von Ophelia radiata,” ‘Jen. Zeit. 
f. Naturwiss.,’ Bd. xxviii. 
12. Timm, R.—‘* Beobachtungen an Phreoryctes, &.,” ‘Arb. Zool.-Zoot.,’ 
Wurzburg, vol. vi. 
13. Vespovsky, F.—‘“‘Beitrige z. vergl. Morph. d. Anneliden,” ‘Monog. 
d. Enchytreiden,’ Prag, 1879. 
EXPLANATION OF PLATES 5 and 6, 
Illustrating Mr. Edwin S. Goodrich’s “ Notes on Oligochetes, 
with the Description of a New Species.” 
List oF REFERENCE LETTERS. 
él. bv. Blind branch of the nephridial canal. 7. Brain. 3.0. Body-wall. 
e.a@. Ciliated enlargement of nephridial canal. circ. m. Circular muscles. 
cel. Celom. cel. corp. Celomic corpuscle. cal. epith. Colomic epithelium. 
d. bl. v. Dorsal blood-vessel. epid. Epidermis. e.v. End vesicle. ect. cil. 
External cilia. ~ Point at which the spermatheca has fused with the ceso- 
phagus. jl. Flame-like bunch of cilia. /. Expanded foot whereby the cell is 
fixed to the body-wall. g/. Spermathecal gland. 4. p. Hair-like processes. 
7. e. Internal hooked end. iz¢. op. Internal opening of the spermatheca into 
the cesophagus. 7,7. Lower lip. Jong. m. Longitudinal muscles. m. p. 
Median process. 2. Nucleus. z.c. Ventral nerve-cord. xeph.c. Nephridial 
canal. xeph.p. Nephridiopore. zeph.st. Nephridiostome. @s. (sophagus. 
op. sp.d. Opening of spermathecal duct into the main chamber of the sperma- 
theca. post. sac. Posterior sac of the spermatheca. s. Septum. — sal. gl. 
Salivary gland. sept. g/. Septal gland. sp. Spermatheca. sp. d. Sperma- 
thecal duct. sp.op. Spermathecal opening. spéz. Spermatozoa. st. Stalk of 
attachment. hr. Thread in the celomic corpuscle. w.p/. Upper lip. v. d2.v. 
Ventral blood-vessel. 
All the figures, except figs. 16, 17, and 28, refer to Enchytreus hor- 
tensis, n. sp. 
