CONTENTS OF PAET IV. 



PAGE 



18. On the anatomy of a supposed new species of Coenopsamniia 



from Lifu .......... 357 



By J. STANLEY GARDINER, M.A. 



With Plate XXXIV. and two figures in the text. 



19. On the Insects from New Britain . . . . . . 381 



By D. SHARP, M.A., M.B., F.R.S. 

 With Plate XXXV. 



20. On the Stomatopoda and Macrura brought by Dr Willey from 



the South Seas ......... 395 



By L. A. BORRADAILE, M.A. 



With Plates XXXVI. -XXX IX. 



21. "Report on the Slugs 1 429 



By WALTER E. COLLINGE, F.Z.S. 

 With Plates XL. and XLI. 



22. Report on the Polyzoa collected by Dr Willey from the Loyalty 



Isles, New Guinea and New Britain ..... 439 



By E. G. PHILIPPS. 



With Plates XLII. and XLIII. 



23. The Hydroid Zoophytes collected by Dr Willey in the Southern 



Seas ........... 451 



By LAURA ROSCOE THORNELY. 

 With Plate XLIV. 



24. Astrosclera ivilleyana, the type of a new Family of Sponges . 459 



By J. J. LISTER, M.A, F.Z.S. 



With Plates XLV. — XLVIII. and three figures in the text. 



1 I am desired to state that this article was written in November 1898 and received by me from the 

 author upwards of twelve months ago. A. W. 



