CONTENTS. XV 



PA«B 



KossACK, Willy — Monostomidas 51 



Johnstone. James — Parasites of Fishes 51 



MiESTiNGEE, K. — Structure of Nephrocephalus sessilis 51 



ClUREA, Joan — European Clinostomnm 52 



DoLLFCS. E. — Excretory Apparatus of Cercariie. 52 



KoBAYASHi, H. — Source of Human Liver-fluke in Japan 52 



Graff, L. von — North American Turbellaria 52 



Seidl, H. H. — Triclads from Central Asia 52 



Beddard, F. E. — New Genera of Tape-worms 185 



WiLHELMi, J. — Systematic Study of Marine Triclads 186 



I'iCREA, J. — Pearl Holostomiasis in Carp 186 



LoHNER, L., & H. MicoLETSKY— iVeic Pelagic Cnnvolntids from Trieste 186 



WuNDSCH, H. H. — Trematode of Frog's Lung 311 



Barker, Franklin D., & Joseph W. Laughlin — New Trematode 311 



Zerny, Hans — Structure of Cestodes 404. 



Johnstone, Jas. — Internal Parasites and Diseased Conditions in Fishes 405 



Gamble, F. W., & G. H. Drew — Trema/of^e iar»« o» Whiting 405 



Beadchamp, P. DE — Iiemarkahle New Trernatoile 405 



Looss. A. — Monograph on Anchylostumum duodenale 405 



Beaichamp, P. DE — Planarians from Bromelias 405 



IMcCallttm, G. A. & W. G. — Structure of Tsenia gigantea (Peters) 525 



Leon, N. — Parasitological Notes 526 



Southern. Pi. — TurheUarians of Clare Island 52() 



Nickerson, W. S. — New Species of Cephalogonimus 616 



Incertae Sedis. 



Nicholls, A. Ii. — Polyzoa of Clare Island 616 



AssHETON. Richard — New Loxosomas 616 



Rotifera. 



Shephard, J. — Botifera of Victoria .. .. 53 



Beauchamp, p. DE — New Rotifer ' . . . . 1 87 



HoFSTEN, Niels von — SweJish Rotifers 1S7 



Murray, Ja.mes — BdeUoid Rotifers of Souili Africa < . 1 87 



Brauer — Rotifera and Gastrotricha of Germany 406 



DiEFFENBACH. H.. & R. Sachse — Biology of Pond Rotifers 406 



Echinodevma. 



Koehler, R. — Antarctic Eehinoderms , 53 



Hawkins, N. L. — Tuhermlation of Holectypoida 53 



Meves, Fr. — Middle I'iece of Echinus Spermatozoon in Fertilization 54 



Fisher, Walter K. — North Pacific Asteroids 54 



Ohshima, Hiroshi — Gigantic Form of Auricularia 54 



Shearer, Cresswell, & others — Hybridization of Echinoids 187 



CowLES, R. P. — Reactions of Starfishes and Sea-urchins to Light 187 



Hawkins, H. L. — Evolution of Apical System of HoleHypoida 188 



Tennent, David H. — Variation in Echinoid Plutei 188 



Grave. Caswell — Remarhable Pluteus 188 



MagBride,^.W.— Hybrid Larvx of Echinocardium and Echinus 311 



Meves. Fr. — Middle Piece of Echinoid Spermatozoon 311 



MooKE, A. R. — Cortical Layer in Sea Urchin Eggs 407 



RiCHTERS, C. — Process of Regeneration in Linckia 407 



Drzewixa, Anna, & Georges Bohn — Effect of Inhibiting Oxidation in Sea-urchin 



Spermatozoa 526 



MaoBride, E. W. — Young Holothuroids from Antarctic 526 



