M. F. LINDER, DEL. 



Hydroids from " Pentacrinus Ground." 



Fig-. 1. SeRTULARELLA GAYI VAR. ROBISTA. AUlliail. 



Fig. 1(7. FiLELLrM sp., a parasitic H3-droid. 



Fig-. 2. SERTULARELLA FORMOSA. FewkeS. 



Fig-. 2a. Gonang-ium of same. 



Fig-. 2f'. Lafcea venusta. Allraan. 



Fig. 3. Obella HYALINA. Clarke (found Oil floating- sca- Weed ) 



Fig-. 3(7. Magnified hydranth of same. 



Fig-. 4. LiCTORELLA coxvALLARiA (?) (Allman). 



Fig-. 4(7, /', r. Details of same. 



Fig-. 5. SERTrLARF:LL.A QUAnR.^T.A. Nuttiiig-. 



Fig. Ba. Magnified hydrotheca of same. 



Fig. Si. Parasitic campanularian. 



