532 RIOHAED EVANS. 



17. WiLLEY, A. — •'Oil Peiipatus Novae-Brit.annise, n. sp.," 'Ann. Mag. 



Nat.. Hist.,' vol. i (7), 1898, p. 286. 



18. WiLLEY, A. — "Tlie Anatomy and Development of Perii>atus Novpe- 



Biitannise," ' Zool. Results based on material from New Britain, etc.,' 

 Part I, pp. 1-52, Plates 1—4, Cambridge, 1 898. 



EXPLANATION OF PLATES 32—37, 



Illustrating Mr. Richard Evans' paper on " Two New Species 

 of Ouycliopliora from the Siamese Malay States." 



Figs. 2, G, 10, 16, 17, 18, 36, and 37 were drawn by Mr. Bayzand, the 

 able artist in the Department of Comparative Anatomy, at Oxford; all the 

 remaining figures were drawn by the author. 



Figs. 24, 25, 26, 27, 36, and 37 were drawn from reconstructions by the 

 author of series of sections. 



Significance of the Lettering. 



a. p. Accessory papilla, cav. Cavity of the ovary, c.e.s. Ccelomic end- 

 sac, e.g. Crural gland. d.ej. Ductus cjaculatorius. Jl. Funnel, g.o. 

 Genital orifice. //. Heart. L. Left uterus. /. v. d. Left vas deferens. 

 m.a.g. Male accessory glands, m.d.l. Mid-dorsal line. n.c. Nerve-cord. 

 op. Ojjening of the oviduct to the ovarian sac. ovid. Oviduct, p.c. Peri- 

 cardium, p.p. Primary papilla. R. Right uterus. re.o. Receptaculum 

 ovorum. re.s. Receptaculum seminis. r.o. Renal organ. r.v.d. Right 

 vas deferens. s. g. Slime-gland. sp. Spermatozoa. 7cf. Uterus. v. o. 

 Ventral organ. 



PLATE 32. 



Fig. 1 (x 2). — Dorsal view of Eoperipat.us Weldoni. 

 Fig. 2 (x 2) — Ventral view of Eoperipatus Weldoni. 



PLATE 33. 



Fig. 4. — Ventral view of llie anterior end of Eoperipatus Weldoni. 

 Fig. 5. — Ventral view of the posterior end of Eoperipatus Weldoni. 



