181 PEOF. W. A. HASWELL OX AUSTEALASIAN POLYCLADS. 



13. LaidlaWj F. F. — Turbellaria Polycladida o£ Zanzibar, collected by C. Crossland. — Part I. The 



Acotylea. P. Z. S. 1903, ii. pp. 99-113, pi. 9. 

 14.. ■ Suggestions for a Revision of the Classification o£ the Polyclad Turbellaria. Mem. and 



Proc. Manch. Lit. & Phil. Soc. vol. xlviii. 1903. 



15. The " Marine Turbellaria." Fauna and Geography Maldive and Laccadive Archipelagoes, 



1902. 



16. Kcport on the Polyclad Turbellaria collected by Professor Herdman at Ceylou in 1902. 



Report Pearl Oyster Fisheries of the Gulf of Manaar, 1904-. Suppl. Report No. 9. 



17. Lang, A. — Die Polycladeu. Fauna u. Flora des Golfes von Neapel, xi. 1884. 



18. Plehn, M. — Ergebnisse e'ner Reise nach deni Siidl. Pacific (Schauiusland, 1896-1897). Polycladeu. 



Zool. Jahrb. Abth. f. Syst. &c. Bd. xii. 



19. Drei neue Polycladen. Jen. Zeitsclir. Naturw. Bd. xxxi. 1897. 



20. ScHMAiiDA, L. K. — Neue wirbellose Thiere, Bd. i. 1859. 



21. QuATREFAGEs, A. DE. — Mciuoires sur quelques Planaries marines. Ann. Sci. Nat. 3'= serie, Zool. 



t. iv. 1845. 



22. Stimpsox, W. — Descriptions of some new Marine Invertebrata. Proc. Acad. Nat. Sci. Philad. 



vol. vii. 1855. 



23. Prodromus descriptionis animalium, etc. Proc. Acad. Nat. Sci. Philad. 1857. 



'24. STUMMEK-TiiAUNFErs, R. \0N. — Tropischc Polycladeu. 1. Das Genus Thysanozoon, Grube. 

 Zeitsclir. f. wiss. Zool. Bd. Ix. 1895. 



25. Yerrill, a. E. — The Marine Plauarians of New Zealand. Trans. Conn. Acad. viii. pp. 459-520, 



pis. 40-44 (1888). 



26. WooDWoRTH, W. Mcil. — Some Plauarians from the Great Barrier Reef of Australia. Bull. Mus. 



Comp. Zool. Harv. Coll. vol. xxxii. pp. 63-67. 



EXPLANATION OF THE PLATES. 



Lettering. 



d., anterior diverticulum of ootype. ej., ejaculatory duct. int., iutestiual cEeca. m., mouth. 

 uot., ootype. ^;., penis, j^.s., penis-sheath, p.st., peuial stylet, pr., prostate reservoir or prostate 

 ducts. r., receptaculura seminis. r.d., duct of receptaculura. sh.gld., shell-glands. ut,, uteius. 

 ut.d., uterine duct, va., dorsal limb of the vagina, v.d., vasa defereutia. v.s., vesicula semiualis. 



Plate 35. 



Fig. 1. Tripylocelis typica. General view of the organization, x 15. 



2. „ „ Brain, eyes, and outline of tentacles. 



3. ,, „ Transverse section passing through the proximal part of the penis. 



4. ,, „ Transverse section at the point where the lateral uterine ducts unite. 



5 & 6. „ „ Two successive transverse sections passing through vagina and its ventral 



aperture ( ? "). 

 7. „ „ Diagrammatic lateral view of the reproductive ducts. 



