NOTES l)N THE HYDROIDS OF PLYMOUTH. 393 



August, and the peculiar free zooid may easily be procured during 

 these months. Habitat on the under sides of stones near low-water 

 mark. East side of Drake's Island. Near Picklecombe Fort. 

 Bovisand Bay. Mewstone. Wembury Bay, very common imme- 

 diately below Wembury Church. Duke Rock, seven fathoms. 



Family EUDENDRIID^. 



EUDENDRIUM RAMEUM, Pallas. 



From the Eddystone, thirty fathoms. Not common. 



Eddendrium ramosum, Linn. 



Very common. Duke Rock. Off the Mewstone. 



ECDENDRIUM CAPILLARE, Alder. 



Growing on worm tubes and on Antennularia antennina off Stoke 

 Point, April, 1889, Duke Rock. 



Family ATRACTYLIDJE. 



Perigonimus repens, T. S. Wright. 



Growing on the legs of a crab, deep water, July 19th, 1888. 

 From Turritella shells, two miles south-west of Rame Head. 



Perigonimus vestitus, Allman. 



Brought in by a trawler, May, 1890. 



Bougainvillea eamosa, Van Beneden. 

 Drake's Island, August 11th, 1888. 



Family TUBULARIID^. 



TuBULARiA indivisa, Linn. 



Not common at Plymouth. Rock pools, south side of Drake's 

 Island, August 11th, 1888. Whitsaiid Bay. 



TuBULARiA LARYNX, Ellis and Solander. 



Growing profusely on the Duke Rock Buoy, and on other buoys 

 in the East Channel, September, 1889. 



