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FRANK E. BEDDARD. 
EXPLANATION OF PLATES 16 & 17, 
Illustrating Mr. Frank E. Beddard’s paper, ‘“ A Contribution 
to our Knowledge of the Oligochzta of Tropical EHastern 
Africa.” 
Fic. 1.—Transverse section through atrium of Eudriloides Cotterilli. 
v. d. Vas deferens, alongside of which runs a blood-vessel. 
Fie. 2.—Transverse section through atrium of Eudriloides brunneus, 
just at the point where the two atria join. v.d. Vas deferens. gi. Glan- 
dular cells containing abundant secretion. 
Fic. 3.— Transverse section through atrium of Polytoreutus violaceus. 
61. Blood-vessel. m. Special thickenings of muscular coat. 
Fic. 4.—Alluroides Pordagei; lateral view of anterior segments. sp. 
Spermatothecal pore. . Penis. @. Oviducal pore. The clitellum is in- 
dicated by the absence of furrows dividing its segments. 
Fie. 5.—Alluroides Pordagei; longitudinal section through atrium 
and adjacent structures. The segments are numbered. CV. Anterior, Cl’. 
Posterior end of clitellum. ¢. Male pore. p. Penis. o. Ovary. 4?¢. Atrium. 
od. Oviduct. ov. A ripe ovum. 
Fic. 6.—Polytoreutus Finni. Spermatothecal sacs and atria. s. Sper- 
matothecal sacs. 2. Oviducal pores. ©. Terminal muscular sac in which 
atria (4¢.) open. sp. Terminal sac through which spermatothecal sacs open. 
Fic. 7.—Polytoreutus violaceus. Spermatothecal sacs and atria. 
Lettering as in Fig. 6, 
Fic. 8.—Polytoreutus kilindinensis. Spermatothecal sacs and atria. 
v.d. Sperm-duct. v. d./. Its funnel, opening into interior of s. s., sperm-sac. 
Fic. 9.—Reproductive organs of Pareudrilus stagnalis, displayed by 
dissection and in siti. @s. Gisophagus. JZ. s. Sac containing ovary, and 
connected with spermatothecal sac. Sp. Orifice of latter on to exterior. 
Ro. Egg-sac. 9. Oviducal pore. . Terminal sac of 4¢., atrium. yp. s. 
Sac containing penial sete. 
Fic. 10.—Genital segments of Hudriloides brunneus, from beneath. 
9. Spermatothecal pore. @. Male pore. C/., Cl’. Anterior and posterior 
boundaries of clitellum. 
Fie. 11.—Longitudinal section through a few segments of Stuhlmannia 
variabilis in esophageal region. Ws, Qisophagus. Ca. Calciferous glands, 
D.v. Dorsal vessel. S. Septum. Zp. Epidermis. m. Muscular layers of 
body-wall. 
