140 BULLETIN OF THE MUSEUM OF COMPARATIVE ZOOLOGY. 



EXPLANATION OF PLATES. 



PLATE I. 



HipptircUa anmdata, AIL 



Aglaoplienopsis hirsuta, n. g. & s. 



Cryptolaria abies, AIL 



Gonosome of A. insignis, n. s. 



Hydrotheca of Cladocarpus compressus 



Hydrothcca of A. insignis, n. s. 



Gonosome of C. abics, All. 



Denticled stem of C. co7npress2is, n. s. 



Nematophores on the jointed appendage of A. hirsuta. 



PLATE II. 



Callicarpa gra-cilis, n. g. and s. 



Gonosome of C. gracilis. 



Gonophore of Aglaophenopsis hirsuta. 



Section of gonosome of H. annulata, All. 



Side view of the same. 



Hydrotheca of C. gracilis. 



Section of the gonosome of C. gracilis. 



Hydrotheca of H. annulata, AU. 



PLATE III. 



Cladocarpus compressus. 

 Gonosome of Plcurocarjm ramosa, n. g. & s. 

 Hydrotheca of Antcnnopsis ramosa. 

 Base of a pinna of Plumularia caulithcca. 

 Hydrotheca of Pleurocarpa ramosa. 

 Hydrotheca of A. gracillima, n. s. 

 Hydrothecse of A. minuta, n. s. 

 Gonosome of A. gracillima. 



PLATE IV. 



Ocyroe mMculata, Rang, (side view). 

 0. maculata (oral lappets seen more in profile)- 

 0. maculata (ahoral view of one quarter of the medusa). 

 0. maculata (the oral lappets are closely drawn together). View from 

 same side as Fig. L 

 Fig. 5. Dodecabostrycha dubia, Br. 



