ILLUSTRATIONS 



PLATES 



PLATE PAGE 



I. Carinella capistrata, C. dinema (= C. sexlineata) , 

 Amphiporus bimaculatus, Cerebratulus herculeus, 



Tetrastemma bicolor 86 



II. Emplectonema biirgeri, Tceniosoma princeps, Zygone- 



mertes thalassina, Paranemertes peregrina 88 



III. Amphiporus exilis (= A. formidabilis), Zygonemertes 



albida, Paranemertes carnea, P. peregrina, Cari- 

 nella speciosa (= C. rubra) 90 



IV. Amphiporus nebulosus, Micrura alaskensis, Cerebrat- 



ulus albifrons, Amphiporus tigrinus 92 



V. Micrura verrilli, Cerebratulus longiceps, Lineus tor- 



quatus, Amphiporus bimaculatus 94 



VI. Cerebratulus montgomeryi, C. occidentalism Am- 

 phiporus angulatus 96 



VII. Zygonemertes thalassina, Amphiporus angulatus ^ Pa- 

 ranemertes pallida, P. carnea^ Amphiporus exilis 

 (= A. formidabilis} , A. leuciodus (= A. impart- 



spinosus), Paranemertes peregrina 98 



VIII. Emplectonema burgeri^ E. gracile, Amphiporus bi- 

 maculatus, A. tigrinus, A. nebulosus, Zygonemertes 



albida, Paranemertes carnea 100 



IX. Carinella speciosa ( = C. rubra) 102 



X. Carinella speciosa (= C. rubra), Amphiporus tigrinus, 104 

 XL Amphiporus nebulosus, A. angulatus, A. exilis (=*A. 



formidabilis) 106 



XII. Paranemertes pallida, Amphiporus bimaculatus, Em- 

 plectonema biirgeri 108 



XIII. Micrura alaskensis, Zygonemertes thalassina, Amphi- 



porus angulatus no 



XIV. Lineus rubescens, Carinella cingulata, Tetrastemma 



quadrilineatum, T. bilineatum, T. ( Oerstedia) retic- 



ulatum, T. signifcr 204 



XV. Nemertopsis gracilis, Paranemertes californica, Lin- 



(ix) 



