JÄDERHOLM, EXOTIC HYDROIDS IN THE SW. ZOOL. STATEMUS. 1 1 



Explanation of Plates. 



Plate 1. 



Fig. 1. Campaniclava clionis Vanhöff. Part of hydrorhiza ^vith 

 hydranth and gonophores. 

 Éalecium ammlatum Toreey. Part of branch. 



» » » Female gonotheca. 



Campanularia raridentata Ålder. Hydrotheca. 

 Lovenella corrugata Thornely. Hydrotheca. 

 Cuspidella grandis Hincks. Part of stoloii with hydrothecae. 

 Sertularella turgida (Träsk). Gonotheca. 



Plate 2. 



Fig. 1. Sertularella meridionalis Nutt. Part of branch. 



» diaphana (Busk, Allm.) Part of branch. 



» formosa Fewkes. Part of branch. 



Sertularia trigonostoma Busk. Part of branch. 

 Plumularia hidentata n. sp. Colony in nat. size. 



» » » » Part of hydrocladium. 



Aglaophenia delicafula (Busk). Hydrotheca. 



» postdentata Billard. Hydrotheca. 



Halicornaria gracilicaidis (Jädh.) Hydrotheca. 



Tryckt den 23 april 1920. 



Uppsala 1920. Almqvist & Wiksells Boktryckeri-A.-B. 



