CONTENTS. 



XXIII. Crustacea of the ' Albatross ' Dredgiiig-s in 1883. By 

 Sidney I. Smith ". 179 



XXIV. Notes on Sponges, with Description of a new Species. By 

 Stuart 0. Ridley, M.A., F.L.S., &c " 183 



XXV. On the Hard Structures of some Species of Madrepora. 



By Prof. P. Martin Duncan, F.R.S., V.P.L.S., &c 183 



XXVI. Contributions to a Knowledge of Malayan Entomology. 

 Part III. By W. L. Distant '. 198 



XXVII. On the Rate of Development of the Common Shore-Crab 

 (Carcimis mcenas). By George Brook, F.Ij.S. (Plate VII.). . . . 202 



Proceedings of the Dublin Microscopical Club 207 — 212 



New Books : — An Elementary Course of Botany, Structui-al, Phy- 

 siological, and Systematic. By the late Prof. Arthur IIen- 

 • FREY, F.R.S. F.L.S., &c. Fourth Edition. By Maxwell T. 

 Masters, M.D., F.R.S. , F.L.S., assisted by A*. W. Bennett, 

 M.A., B.Sc, F.L.S. — Second Annual Report of the United- 

 States Geological Suryey to the Secretary of the Interior, 1S80- 

 81. By J. W. Powell, Director \ 213, 21 7 



On Floral Polymorphism in Narcissus reflexus, by M. L. Crie ; 

 Anatomy of Epelra, by M. Vladimir Schimkewitsch ; On the 

 Physiology of a Green Planariau [Convohila Schultzii), by M. A. 

 Barthelemy 220 222 



NUMBER LXXXII. 



XXVIII. The Classificatory Position of Honiaster elongatus, Dune. 

 & Sladen : a Reply to a Criticism by Prof. Sven Loyen. By Prof. 



P. Martin Duncan, F.R.S. , and W. Percy Sladen, F.L.S 225 



XXIX. Aspects of the Body in Vertebrates and Arthropods. By 



A. S. Packard 243 



XXX. A Contribution to the Knowledge of the Freshwater 

 Sponge Dosilia Stepanoicii. By Dr. M. Dybowski 249 



XXXI. Triassic Insects from the Rocky Mountains. By Samuel 



H. SCUDDER '. 234 



XXXII. On the Affinities of the Onchidia. By Dr. R. Bergh . . 259 



XXXIII. On a new Species of the Theclid Genus Thenfas from 

 Colombia. By Arthur G. Butler, F.L.S., F.Z.S., &c 267 



XXXIV. Some Phenomena in the Life-history of CiathruUnn 

 eJeyans. By Miss Sara Gwendolen Foulke 2^ 



